diff --git a/src/main/resources/xml/schema/nordic-html5.rng b/src/main/resources/xml/schema/nordic-html5.rng
index 32395152..6361a6e7 100644
--- a/src/main/resources/xml/schema/nordic-html5.rng
+++ b/src/main/resources/xml/schema/nordic-html5.rng
@@ -365,9 +365,12 @@
             <a:documentation>The HTML root element (&lt;html&gt;) represents the root of an HTML document. All other elements must be descendants of this element.</a:documentation>
             <!-- HTML content model: head body -->
             <!-- Strict content model: head body -->
-            <attribute name="epub:prefix">
-                <value>z3998: http://www.daisy.org/z3998/2012/vocab/structure/#</value>
-            </attribute>
+            <optional>
+                <attribute name="epub:prefix">
+                    <!-- content validated in schematron -->
+                    <text/>
+                </attribute>
+            </optional>
             <ref name="attlist.html"/>
             <ref name="htmlcontent"/> <!-- head, body -->
         </element>
@@ -3166,6 +3169,7 @@
                     <optional>
                         <choice>
                             <value>rearnotes</value>
+                            <value>endnotes</value>
                             <value>footnotes</value>
                         </choice>
                     </optional>
@@ -3633,6 +3637,7 @@
             <value>index-legend</value>
             <value>index-group</value>
             <value>glossary</value>
+            <value>dictionary</value>
             <value>bibliography</value>
             <!--<value>titlepage</value>-->
             <value>halftitlepage</value>
@@ -3655,6 +3660,7 @@
             <value>practices</value>
             <value>footnotes</value>
             <value>rearnotes</value>
+            <value>endnotes</value>
             <value>page-list</value>
             <value>z3998:section</value>
             <value>z3998:subsection</value>
@@ -3703,6 +3709,7 @@
                 <!--<value>frontmatter</value>-->
                 <value>fulltitle</value>
                 <!--<value>glossary</value>-->
+                <!--<value>dictionary</value>-->
                 <value>glossdef</value>
                 <value>glossterm</value>
                 <value>halftitle</value>
@@ -3731,7 +3738,9 @@
                 <!--<value>preface</value>-->
                 <!--<value>prologue</value>-->
                 <value>rearnote</value>
+                <value>endnote</value>
                 <!--<value>rearnotes</value>-->
+                <!--<value>endnotes</value>-->
                 <!--<value>sidebar</value>-->
                 <!--<value>subchapter</value>-->
                 <value>subtitle</value>
@@ -3946,6 +3955,80 @@
                 <!--<value>z3998:warning</value>-->
                 <value>z3998:weight</value>
                 <!--<value>z3998:word</value>-->
+                
+                <!-- dictionaries vocabulary -->
+                <value>antonym-group</value>
+                <value>condensed-entry</value>
+                <value>def</value>
+                <value>dictentry</value>
+                <value>etymology</value>
+                <value>example</value>
+                <value>gram-info</value>
+                <value>idiom</value>
+                <value>part-of-speech</value>
+                <value>part-of-speech-group</value>
+                <value>part-of-speech-list</value>
+                <value>phonetic-transcription</value>
+                <value>phrase-group</value>
+                <value>phrase-list</value>
+                <value>sense-group</value>
+                <value>sense-list</value>
+                <value>synonym-group</value>
+                <value>tran</value>
+                <value>tran-info</value>
+                
+                <!-- indexes vocabulary -->
+                <value>index-editor-note</value>
+                <value>index-entry</value>
+                <value>index-entry-list</value>
+                <value>index-locator</value>
+                <value>index-locator-list</value>
+                <value>index-locator-range</value>
+                <value>index-term</value>
+                <value>index-term-categories</value>
+                <value>index-term-category</value>
+                <value>index-xref-preferred</value>
+                
+                <!-- magazine vocabulary -->
+                <!-- msv: http://www.idpf.org/epub/vocab/structure/magazine/# -->
+                <!-- prism: http://www.prismstandard.org/specifications/3.0/PRISM_CV_Spec_3.0.htm# -->
+                <value>prism:title</value>
+                <value>prism:deck</value>
+                <value>prism:subtitle</value>
+                <value>prism:byline</value>
+                <value>prism:contributors</value>
+                <value>prism:caption</value>
+                <value>prism:credit</value>
+                <value>prism:box</value>
+                <value>prism:advertisement</value>
+                <value>prism:pullQuote</value>
+                <value>msv:article-region</value>
+                <value>msv:article-text</value>
+                <value>msv:media</value>
+                
+                <!-- educational vocabulary (EDUPUB) -->
+                <value>biblioref</value>
+                <value>credit</value>
+                <value>feedback</value>
+                <value>fill-in-the-blank-problem</value>
+                <value>general-problem</value>
+                <value>glossref</value>
+                <value>label</value>
+                <value>learning-objective</value>
+                <value>learning-objectives</value>
+                <value>learning-outcome</value>
+                <value>learning-outcomes</value>
+                <value>learning-resource</value>
+                <value>learning-resources</value>
+                <value>learning-standard</value>
+                <value>learning-standards</value>
+                <value>match-problem</value>
+                <value>multiple-choice-problem</value>
+                <value>ordinal</value>
+                <value>pullquote</value>
+                <value>question</value>
+                <value>referrer</value>
+                <value>true-false-problem</value>
             </choice>
         </zeroOrMore>
     </define>
diff --git a/src/main/resources/xml/schema/nordic2015-1.sch b/src/main/resources/xml/schema/nordic2015-1.sch
index 2d425472..25a9a606 100644
--- a/src/main/resources/xml/schema/nordic2015-1.sch
+++ b/src/main/resources/xml/schema/nordic2015-1.sch
@@ -6,7 +6,10 @@
     <ns prefix="html" uri="http://www.w3.org/1999/xhtml"/>
     <ns prefix="epub" uri="http://www.idpf.org/2007/ops"/>
     <ns prefix="nordic" uri="http://www.mtm.se/epub/"/>
-    <ns prefix="mathml" uri="http://www.w3.org/1998/Math/MathML"/>
+    <ns prefix="a11y" uri="http://www.idpf.org/epub/vocab/package/a11y/#"/>
+    <ns prefix="m" uri="http://www.w3.org/1998/Math/MathML"/>
+    <ns prefix="msv" uri="http://www.idpf.org/epub/vocab/structure/magazine/#"/>
+    <ns prefix="prism" uri="http://www.prismstandard.org/specifications/3.0/PRISM_CV_Spec_3.0.htm#"/>
 
     <!-- Rule 7: No <ul>, <ol> or <dl> inside <p> -->
     <pattern id="epub_nordic_7">
@@ -169,7 +172,7 @@
 
     <!-- Rule 26a: Each note must have a noteref -->
     <pattern id="epub_nordic_26_a">
-        <rule context="html:*[ancestor::html:body[html:header] and tokenize(@epub:type,'\s+')=('note','rearnote','footnote')]">
+        <rule context="html:*[ancestor::html:body[html:header] and tokenize(@epub:type,'\s+')=('note','rearnote','endnote','footnote')]">
             <!-- this is the single-HTML version of the rule; the multi-HTML version of this rule is in nordic2015-1.opf-and-html.sch -->
             <assert test="count(//html:a[tokenize(@epub:type,'\s+')='noteref'][substring-after(@href, '#')=current()/@id])&gt;=1">[nordic26a] Each note must have at least one &lt;a epub:type="noteref"
                 ...&gt; referencing it: <value-of select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
@@ -180,8 +183,8 @@
     <pattern id="epub_nordic_26_b">
         <rule context="html:a[ancestor::html:body[html:header] and tokenize(@epub:type,'\s+')='noteref']">
             <!-- this is the single-HTML version of the rule; the multi-HTML version of this rule is in nordic2015-1.opf-and-html.sch -->
-            <assert test="count(//html:*[tokenize(@epub:type,'\s+')=('note','rearnote','footnote') and @id = current()/substring-after(@href,'#')]) &gt;= 1">[nordic26b] The note reference with the
-                href "<value-of select="@href"/>" attribute must resolve to a note, rearnote or footnote in the publication: <value-of
+            <assert test="count(//html:*[tokenize(@epub:type,'\s+')=('note','rearnote','endnote','footnote') and @id = current()/substring-after(@href,'#')]) &gt;= 1">[nordic26b] The note reference with the
+                href "<value-of select="@href"/>" attribute must resolve to a note, rearnote, endnote or footnote in the publication: <value-of
                     select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
         </rule>
     </pattern>
@@ -254,7 +257,7 @@
                                            self::html:p[parent::html:header[parent::html:body] and tokenize(@epub:type,' ')='z3998:author']  or self::html:h1[tokenize(@epub:type,' ')='fulltitle']   or
                                            self::html:aside[tokenize(@epub:type,' ')='epigraph']   or self::html:p[tokenize(@class,' ')='line']     or
   	                                       self::html:*[tokenize(@class,' ')='linegroup']  or
-  	                                       self::html:*[self::html:ul or self::html:ol]       or self::html:a[tokenize(@epub:type,' ')=('note','rearnote','footnote')]       or self::html:p        or
+  	                                       self::html:*[self::html:ul or self::html:ol]       or self::html:a[tokenize(@epub:type,' ')=('note','rearnote','endnote','footnote')]       or self::html:p        or
                                            self::html:*[tokenize(@epub:type,' ')='z3998:poem']       or self::html:*[(self::figure or self::aside) and tokenize(@epub:type,'s')='sidebar']    or self::html:table    or
                                            self::html:*[matches(local-name(),'^h\d$') and tokenize(@class,' ')='title']]"
                 >[nordic29] Prodnote in inline context used as block element: <value-of
@@ -468,8 +471,30 @@
 
     <!-- Rule 128: tracking metadata must exist (nordic:guidelines) -->
     <pattern id="epub_nordic_128_a">
-        <rule context="html:html[//html:body/html:header]">
-            <assert test="namespace-uri-for-prefix('nordic',.)='http://www.mtm.se/epub/'">[nordic128a] xmlns:nordic="http://www.mtm.se/epub/" must be defined on the root html element.</assert>
+        <rule context="html:meta[boolean(@name) and contains(@name, ':') and not(substring-before(@name, ':') = ('epub', 'dc', 'dcterms', 'marc', 'media', 'onix', 'xsd'))]">
+            <let name="prefix" value="substring-before(@name, ':')"/>
+            <let name="namespace" value="if ($prefix = 'nordic') then 'http://www.mtm.se/epub/' else
+                                         if ($prefix = 'z3998') then 'http://www.daisy.org/z3998/2012/vocab/structure/#' else
+                                         if ($prefix = 'a11y') then 'http://www.idpf.org/epub/vocab/package/a11y/#' else
+                                         if ($prefix = 'msv') then 'http://www.idpf.org/epub/vocab/structure/magazine/#' else
+                                         if ($prefix = 'prism') then 'http://www.prismstandard.org/specifications/3.0/PRISM_CV_Spec_3.0.htm#' else
+                                         ''"/>
+            <assert test="matches(string(ancestor::html:html[1]/@epub:prefix[1]), concat('(^|\s)', $prefix, ': *[^\s]+(\s|$)'))">[nordic128a] on the html element: the epub:prefix attribute must declare the '<value-of select="$prefix"/>' prefix</assert>
+            <assert test="not($namespace) or matches(string(ancestor::html:html[1]/@epub:prefix[1]), concat('(^|\s)', $prefix, ':\s+', $namespace , '(\s|$)'))">[nordic128e] in the epub:prefix attribute on the html element: the namespace for the '<value-of select="$prefix"/>' prefix must be '<value-of select="$namespace"/>'</assert>
+        </rule>
+        <rule context="*[@epub:type]">
+            <let name="prefixes" value="distinct-values(for $t in (tokenize(@epub:type,'\s+')) return if (contains($t,':') and not(substring-before($t, ':') = ('epub', 'dc', 'dcterms', 'marc', 'media', 'onix', 'xsd'))) then substring-before($t, ':') else ())"/>
+            <let name="prefixes-with-namespace" value="for $prefix in $prefixes return (
+                                                            if ($prefix = 'nordic') then concat($prefix, ': ', 'http://www.mtm.se/epub/') else
+                                                            if ($prefix = 'z3998') then concat($prefix, ': ', 'http://www.daisy.org/z3998/2012/vocab/structure/#') else
+                                                            if ($prefix = 'a11y') then concat($prefix, ': ', 'http://www.idpf.org/epub/vocab/package/a11y/#') else
+                                                            if ($prefix = 'msv') then concat($prefix, ': ', 'http://www.idpf.org/epub/vocab/structure/magazine/#') else
+                                                            if ($prefix = 'prism') then concat($prefix, ': ', 'http://www.prismstandard.org/specifications/3.0/PRISM_CV_Spec_3.0.htm#') else
+                                                            ())"/>
+            <report test="parent::*/@class='myclass' and count($prefixes) = 0">prefixes: <value-of select="$prefixes"/></report>
+            <assert test="count($prefixes) = 0 or not(false() = (for $prefix in $prefixes return matches(string(ancestor::html:html[1]/@epub:prefix[1]), concat('(^|\s)', $prefix, ': *[^\s]+(\s|$)'))))">[nordic128e] all of the prefixes in use (<value-of select="concat('''', string-join($prefixes,''','''), '''')"/>) on the element (<value-of
+                select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/>) must be declared in the epub:prefix attribute on the html element: '&lt;html epub:prefix="<value-of select="ancestor-or-self::html:html/@prefix"/>"&gt;...&lt;/html&gt;</assert>
+            <assert test="count($prefixes-with-namespace) = 0 or not(false() = (for $prefix-with-namespace in ($prefixes-with-namespace) return matches(string(ancestor::html:html[1]/@epub:prefix[1]), concat('(^|\s)', substring-before($prefix-with-namespace, ': '), ':\s+', substring-after($prefix-with-namespace, ': '), '(\s|$)'))))">[nordic128e] in the epub:prefix attribute on the html element: the namespaces for the prefixes must be correct. <value-of select="string-join(for $prefix-with-namespace in ($prefixes-with-namespace) return concat('The prefix ''', substring-before($prefix-with-namespace, ': '), ''' must be associated with the namespace ''', substring-after($prefix-with-namespace, ': '), '''.'), ' ')"/></assert>
         </rule>
     </pattern>
 
@@ -490,7 +515,7 @@
             <assert test="count(html:meta[@name='nordic:supplier'])=1">[nordic128d] nordic:supplier metadata must occur once.</assert>
         </rule>
     </pattern>
-
+    
     <!-- Rule 130 (44): dc:language must equal root element xml:lang -->
     <pattern id="epub_nordic_130">
         <rule context="html:meta[@name='dc:language']">
@@ -576,9 +601,9 @@
             <let name="always-allowed-types"
                 value="('abstract','acknowledgments','afterword','answers','appendix','assessment','assessments','bibliography',
                 'z3998:biographical-note','case-study','chapter','colophon','conclusion','contributors','copyright-page','credits','dedication','z3998:discography','division','z3998:editorial-note','epigraph','epilogue',
-                'errata','z3998:filmography','footnotes','foreword','glossary','z3998:grant-acknowledgment','halftitlepage','imprimatur','imprint','index','index-group','index-headnotes','index-legend','introduction',
+                'errata','z3998:filmography','footnotes','foreword','glossary','dictionary','z3998:grant-acknowledgment','halftitlepage','imprimatur','imprint','index','index-group','index-headnotes','index-legend','introduction',
                 'keywords','landmarks','loa','loi','lot','lov','notice','other-credits','page-list','practices','preamble','preface','prologue','z3998:promotional-copy','z3998:published-works',
-                'z3998:publisher-address','qna','rearnotes','revision-history','z3998:section','seriespage','subchapter','z3998:subsection','toc','toc-brief','z3998:translator-note','volume')"/>
+                'z3998:publisher-address','qna','rearnotes','endnotes','revision-history','z3998:section','seriespage','subchapter','z3998:subsection','toc','toc-brief','z3998:translator-note','volume')"/>
             <let name="allowed-types" value="($always-allowed-types, 'titlepage')"/>
             <assert test="count(tokenize(@epub:type,'\s+')) = 1 or tokenize(@epub:type,'\s+')=$allowed-types">[nordic202] '<value-of
                     select="(tokenize(@epub:type,'\s+')[not(.='frontmatter')],'(missing type)')[1]"/>' is not an allowed type in frontmatter. On elements with the epub:type "frontmatter", you can
@@ -587,13 +612,18 @@
         </rule>
     </pattern>
 
-    <!-- Rule 203: Check that both the epub:types "rearnote" and "rearnotes" are used in rearnotes -->
+    <!-- Rule 203: Check that both the epub:types "rearnote"/"endnote" and "rearnotes"/"endnotes" are used in rearnotes/endnotes -->
     <pattern id="epub_nordic_203_a">
         <rule context="html:*[tokenize(@epub:type,'\s+')='rearnote']">
             <assert test="(ancestor::html:section | ancestor::html:body)[tokenize(@epub:type,'\s+')='rearnotes']">[nordic203a] 'rearnote' must have a section<value-of
                     select="if (ancestor::html:body[html:section]) then '' else ' or body'"/> ancestor with 'rearnotes': <value-of
                     select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
         </rule>
+        <rule context="html:*[tokenize(@epub:type,'\s+')='endnote']">
+            <assert test="(ancestor::html:section | ancestor::html:body)[tokenize(@epub:type,'\s+')='endnotes']">[nordic203a] 'endnote' must have a section<value-of
+                select="if (ancestor::html:body[html:section]) then '' else ' or body'"/> ancestor with 'endnotes': <value-of
+                    select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
+        </rule>
     </pattern>
 
     <pattern id="epub_nordic_203_c">
@@ -603,6 +633,12 @@
             <assert test=".//html:ol">[nordic204c] <value-of select="if (self::html:body) then 'documents' else 'sections'"/> with the epub:type 'rearnotes' must have &lt;ol&gt; descendant
                 elements.</assert>
         </rule>
+        <rule context="html:body[tokenize(@epub:type,'\s+')='endnotes'] | html:section[tokenize(@epub:type,'\s+')='endnotes']">
+            <assert test="descendant::html:*[tokenize(@epub:type,'\s+')='endnote']">[nordic203c] <value-of select="if (self::html:body) then 'documents' else 'sections'"/> with the epub:type
+                'endnotes' must have descendants with 'endnote'.</assert>
+            <assert test=".//html:ol">[nordic204c] <value-of select="if (self::html:body) then 'documents' else 'sections'"/> with the epub:type 'endnotes' must have &lt;ol&gt; descendant
+                elements.</assert>
+        </rule>
     </pattern>
 
     <pattern id="epub_nordic_203_d">
@@ -612,9 +648,15 @@
             <assert test="tokenize(@class,'\s+')='notebody'">[nordic203d] The 'notebody' class must be applied to all rearnotes: <value-of
                     select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
         </rule>
+        <rule context="html:*[tokenize(@epub:type,'\s+')='endnote']">
+            <assert test="self::html:li">[nordic203d] 'endnote' can only be applied to &lt;li&gt; elements: <value-of
+                select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
+            <assert test="tokenize(@class,'\s+')='notebody'">[nordic203d] The 'notebody' class must be applied to all endnotes: <value-of
+                select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
+        </rule>
     </pattern>
 
-    <!-- Rule 204: Check that both the epub:types "footnote" and "footnotes" are used in rearnotes -->
+    <!-- Rule 204: Check that both the epub:types "footnote" and "footnotes" are used in footnotes -->
     <pattern id="epub_nordic_204_a">
         <rule context="html:*[tokenize(@epub:type,'\s+')='footnote']">
             <assert test="(ancestor::html:section | ancestor::html:body)[tokenize(@epub:type,'\s+')='footnotes']">[nordic204a] 'footnote' must have a section<value-of
@@ -647,9 +689,9 @@
             <let name="always-allowed-types"
                 value="('abstract','acknowledgments','afterword','answers','appendix','assessment','assessments','bibliography',
                 'z3998:biographical-note','case-study','chapter','colophon','conclusion','contributors','copyright-page','credits','dedication','z3998:discography','division','z3998:editorial-note','epigraph','epilogue',
-                'errata','z3998:filmography','footnotes','foreword','glossary','z3998:grant-acknowledgment','halftitlepage','imprimatur','imprint','index','index-group','index-headnotes','index-legend','introduction',
+                'errata','z3998:filmography','footnotes','foreword','glossary','dictionary','z3998:grant-acknowledgment','halftitlepage','imprimatur','imprint','index','index-group','index-headnotes','index-legend','introduction',
                 'keywords','landmarks','loa','loi','lot','lov','notice','other-credits','page-list','practices','preamble','preface','prologue','z3998:promotional-copy','z3998:published-works',
-                'z3998:publisher-address','qna','rearnotes','revision-history','z3998:section','seriespage','subchapter','z3998:subsection','toc','toc-brief','z3998:translator-note','volume')"/>
+                'z3998:publisher-address','qna','rearnotes','endnotes','revision-history','z3998:section','seriespage','subchapter','z3998:subsection','toc','toc-brief','z3998:translator-note','volume')"/>
             <let name="allowed-types" value="($always-allowed-types, 'part')"/>
             <assert test="tokenize(@epub:type,'\s+')=$allowed-types">[nordic208] '<value-of select="(tokenize(@epub:type,'\s+')[not(.='bodymatter')],'(missing type)')[1]"/>' is not an allowed type in
                 bodymatter. Elements with the type "bodymatter" must also have one of the types <value-of select="string-join($allowed-types[position() != last()],''', ''')"/> or '<value-of
@@ -663,9 +705,9 @@
             <let name="always-allowed-types"
                 value="('abstract','acknowledgments','afterword','answers','appendix','assessment','assessments','bibliography',
                 'z3998:biographical-note','case-study','chapter','colophon','conclusion','contributors','copyright-page','credits','dedication','z3998:discography','division','z3998:editorial-note','epigraph','epilogue',
-                'errata','z3998:filmography','footnotes','foreword','glossary','z3998:grant-acknowledgment','halftitlepage','imprimatur','imprint','index','index-group','index-headnotes','index-legend','introduction',
+                'errata','z3998:filmography','footnotes','foreword','glossary','dictionary','z3998:grant-acknowledgment','halftitlepage','imprimatur','imprint','index','index-group','index-headnotes','index-legend','introduction',
                 'keywords','landmarks','loa','loi','lot','lov','notice','other-credits','page-list','practices','preamble','preface','prologue','z3998:promotional-copy','z3998:published-works',
-                'z3998:publisher-address','qna','rearnotes','revision-history','z3998:section','seriespage','subchapter','z3998:subsection','toc','toc-brief','z3998:translator-note','volume')"/>
+                'z3998:publisher-address','qna','rearnotes','endnotes','revision-history','z3998:section','seriespage','subchapter','z3998:subsection','toc','toc-brief','z3998:translator-note','volume')"/>
             <let name="document-components" value="('z3998:pgroup','z3998:example','z3998:epigraph','z3998:annotation','z3998:introductory-note','z3998:commentary','z3998:clarification','z3998:correction','z3998:alteration','z3998:presentation',
                 'z3998:production','z3998:attribution','z3998:author','z3998:editor','z3998:general-editor','z3998:commentator','z3998:translator','z3998:republisher','z3998:structure','z3998:geographic',
                 'z3998:postal','z3998:email','z3998:ftp','z3998:http','z3998:ip','z3998:aside','z3998:sidebar','z3998:practice','z3998:notice','z3998:warning','z3998:marginalia','z3998:help','z3998:drama',
@@ -686,9 +728,9 @@
             <let name="always-allowed-types"
                 value="('abstract','acknowledgments','afterword','answers','appendix','assessment','assessments','bibliography',
                 'z3998:biographical-note','case-study','chapter','colophon','conclusion','contributors','copyright-page','credits','dedication','z3998:discography','division','z3998:editorial-note','epigraph','epilogue',
-                'errata','z3998:filmography','footnotes','foreword','glossary','z3998:grant-acknowledgment','halftitlepage','imprimatur','imprint','index','index-group','index-headnotes','index-legend','introduction',
+                'errata','z3998:filmography','footnotes','foreword','glossary','dictionary','z3998:grant-acknowledgment','halftitlepage','imprimatur','imprint','index','index-group','index-headnotes','index-legend','introduction',
                 'keywords','landmarks','loa','loi','lot','lov','notice','other-credits','page-list','practices','preamble','preface','prologue','z3998:promotional-copy','z3998:published-works',
-                'z3998:publisher-address','qna','rearnotes','revision-history','z3998:section','seriespage','subchapter','z3998:subsection','toc','toc-brief','z3998:translator-note','volume')"/>
+                'z3998:publisher-address','qna','rearnotes','endnotes','revision-history','z3998:section','seriespage','subchapter','z3998:subsection','toc','toc-brief','z3998:translator-note','volume')"/>
             <let name="allowed-types" value="($always-allowed-types)"/>
             <assert test="count(tokenize(@epub:type,'\s+')) = 1 or tokenize(@epub:type,'\s+')=$allowed-types">[nordic215] '<value-of
                     select="(tokenize(@epub:type,'\s+')[not(.='backmatter')],'(missing type)')[1]"/>' is not an allowed type in backmatter. On elements with the epub:type "backmatter", you can either
@@ -891,6 +933,10 @@
             <assert test="self::html:ol">[nordic267a] Rearnotes must be wrapped in a "ol" element, but is currently wrapped in a <name/>: <value-of
                     select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
         </rule>
+        <rule context="html:*[*[tokenize(@epub:type,'\s+')='endnote']]">
+            <assert test="self::html:ol">[nordic267a] Endnotes must be wrapped in a "ol" element, but is currently wrapped in a <name/>: <value-of
+                select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
+        </rule>
     </pattern>
 
     <pattern id="epub_nordic_267_b">
@@ -898,6 +944,10 @@
             <assert test="tokenize(@epub:type,'\s+')='rearnote'">[nordic267b] List items inside a rearnotes list must use epub:type="rearnote": <value-of
                     select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
         </rule>
+        <rule context="html:section[tokenize(@epub:type,'\s+')='endnotes']/html:ol/html:li | html:body[tokenize(@epub:type,'\s+')='endnotes']/html:ol/html:li">
+            <assert test="tokenize(@epub:type,'\s+')='endnote'">[nordic267b] List items inside a endnotes list must use epub:type="endnote": <value-of
+                select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
+        </rule>
     </pattern>
 
     <!-- Rule 268: Check that the heading levels are nested correctly (necessary for sidebars and poems, and maybe other structures as well where the RelaxNG is unable to enforce the level) -->
@@ -939,18 +989,6 @@
         </rule>
     </pattern>
 
-
-    <!-- Imported from Pipeline 1 DTBook validator and adapted to EPUB3 -->
-    <pattern id="epub_nordic_272">
-        <rule context="html:a[tokenize(@epub:type,'\s+')='annoref']">
-            <assert test="contains(@href, '#')">[nordic272a] Note reference href attribute does not contain a fragment identifier: <value-of
-                    select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></assert>
-            <report test="ancestor::html:body[html:header] and contains(@href, '#') and substring-after(@href, '#')=//html:*[tokenize(@epub:type,'\s+')=('annotation')]/@id">[nordic272b] Annotation
-                reference href attribute does not resolve to a note, rearnote or footnote in the publication: <value-of
-                    select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></report>
-        </rule>
-    </pattern>
-
     <!-- Imported from Pipeline 1 DTBook validator and adapted to EPUB3 -->
     <pattern id="epub_nordic_273">
         <rule context="html:a[starts-with(@href, '#')]">
@@ -1112,5 +1150,11 @@
                     select="concat('&lt;',name(),string-join(for $a in (@*) return concat(' ',$a/name(),'=&quot;',$a,'&quot;'),''),'&gt;')"/></report>
         </rule>
     </pattern>
+    
+    <pattern id="epub_nordic_283">
+        <rule context="m:*[contains(name(), ':')]">
+            <assert test="substring-before(name(), ':') = 'm'">[nordic283] When using MathML with a namespace prefix, that prefix must be 'm'. Not <value-of select="substring-before(name(), ':')"/></assert>
+        </rule>
+    </pattern>
 
 </schema>
diff --git a/src/main/resources/xml/xproc/step/dtbook-to-html.step.xpl b/src/main/resources/xml/xproc/step/dtbook-to-html.step.xpl
index d0e5337b..c18554b3 100644
--- a/src/main/resources/xml/xproc/step/dtbook-to-html.step.xpl
+++ b/src/main/resources/xml/xproc/step/dtbook-to-html.step.xpl
@@ -92,6 +92,14 @@
                     <p:document href="../../xslt/dtbook-to-epub3.xsl"/>
                 </p:input>
             </p:xslt>
+            <p:xslt>
+                <p:input port="parameters">
+                    <p:empty/>
+                </p:input>
+                <p:input port="stylesheet">
+                    <p:document href="../../xslt/update-epub-prefixes.xsl"/>
+                </p:input>
+            </p:xslt>
 
             <p:insert match="/html:html/html:head" position="last-child" name="dtbook-to-html.step.insert-accessibility-css-link">
                 <p:input port="insertion">
diff --git a/src/main/resources/xml/xproc/step/epub3-to-html.step.xpl b/src/main/resources/xml/xproc/step/epub3-to-html.step.xpl
index f0f5916f..aafd1580 100644
--- a/src/main/resources/xml/xproc/step/epub3-to-html.step.xpl
+++ b/src/main/resources/xml/xproc/step/epub3-to-html.step.xpl
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <p:declare-step xmlns:p="http://www.w3.org/ns/xproc" xmlns:c="http://www.w3.org/ns/xproc-step" xmlns:px="http://www.daisy.org/ns/pipeline/xproc" xmlns:d="http://www.daisy.org/ns/pipeline/data"
     type="px:nordic-epub3-to-html.step" name="main" version="1.0" xmlns:epub="http://www.idpf.org/2007/ops" xmlns:html="http://www.w3.org/1999/xhtml" xmlns:opf="http://www.idpf.org/2007/opf">
-
+    
     <p:input port="fileset.in" primary="true"/>
     <p:input port="in-memory.in" sequence="true">
         <p:empty/>
@@ -244,6 +244,9 @@
                     <p:pipe port="result" step="epub3-to-html.step.single-html.metadata"/>
                 </p:input>
             </p:replace>
+            <p:add-attribute match="/html:html" attribute-name="epub:prefix">
+                <p:with-option name="attribute-value" select="string-join(//@epub:prefix,' ')"/>
+            </p:add-attribute>
             <p:insert match="/*/html:body" position="first-child" name="epub3-to-html.step.insert-header-element-into-single-html">
                 <p:input port="insertion">
                     <p:pipe port="result" step="epub3-to-html.step.single-html.header-element"/>
@@ -252,7 +255,7 @@
             <p:add-attribute match="/*" attribute-name="xml:lang" name="epub3-to-html.step.add-xml-lang-to-single-html">
                 <p:with-option name="attribute-value" select="/*/html:head/html:meta[@name='dc:language']/@content"/>
             </p:add-attribute>
-            <p:add-attribute attribute-name="xml:base" match="/*" name="epub3-to-html.step.add-xml-base-to-single-html">
+            <p:add-attribute match="/*" attribute-name="xml:base" name="epub3-to-html.step.add-xml-base-to-single-html">
                 <p:with-option name="attribute-value"
                     select="replace(base-uri(/*),'[^/]+$',concat((/*/html:head/html:meta[lower-case(@name)=('dc:identifier','dct:identifier','dtb:uid','dc:title')]/string(@content), /*/html:head/html:title/normalize-space(.))[1],'.xhtml'))"
                 />
@@ -264,6 +267,14 @@
             </p:viewport>
             <p:delete match="//*[@xml:lang = ancestor::*[@xml:lang][1]/@xml:lang]/@xml:lang | //*[@lang = ancestor::*[@lang][1]/@lang]/@lang"
                 name="epub3-to-html.step.delete-unneccessary-xml-lang-and-lang"/>
+            <p:xslt>
+                <p:input port="parameters">
+                    <p:empty/>
+                </p:input>
+                <p:input port="stylesheet">
+                    <p:document href="../../xslt/update-epub-prefixes.xsl"/>
+                </p:input>
+            </p:xslt>
             <p:identity name="epub3-to-html.step.in-memory"/>
 
             <px:html-to-fileset name="epub3-to-html.step.single-html-to-fileset">
diff --git a/src/main/resources/xml/xslt/deep-level-grouping.xsl b/src/main/resources/xml/xslt/deep-level-grouping.xsl
index e7901a2c..1476ba8f 100644
--- a/src/main/resources/xml/xslt/deep-level-grouping.xsl
+++ b/src/main/resources/xml/xslt/deep-level-grouping.xsl
@@ -63,7 +63,7 @@
         <!-- deep-levels can be resource intensive for big documents; so only call the deep-levels template if necessary -->
         <xsl:choose>
             <xsl:when test="$level &lt; $max-depth-int">
-                <xsl:copy>
+                <xsl:copy exclude-result-prefixes="#all">
                     <xsl:apply-templates select="@*|node()"/>
                 </xsl:copy>
             </xsl:when>
@@ -157,11 +157,11 @@
         <xsl:param name="root-level" as="node()"/>
         <xsl:variable name="common-ancestor" select="if (xs:string($copy-wrapping-elements-into-result)='true') then $root-level else ($content[1]/ancestor::*[not($content except .//node())])[last()]"/>
         <xsl:element name="{local-name($root-level)}" namespace="{namespace-uri($root-level)}">
-            <xsl:copy-of select="$content[1]/ancestor-or-self::*[f:is-level(.)]/@*"/>
+            <xsl:copy-of select="$content[1]/ancestor-or-self::*[f:is-level(.)]/@*" exclude-result-prefixes="#all"/>
             <xsl:for-each select="$common-ancestor/node()">
                 <xsl:choose>
                     <xsl:when test=". = $content">
-                        <xsl:copy-of select="."/>
+                        <xsl:copy-of select="." exclude-result-prefixes="#all"/>
                     </xsl:when>
                     <xsl:when test=".//node() intersect $content">
                         <xsl:choose>
@@ -172,8 +172,8 @@
                                 </xsl:call-template>
                             </xsl:when>
                             <xsl:otherwise>
-                                <xsl:copy>
-                                    <xsl:copy-of select="@*"/>
+                                <xsl:copy exclude-result-prefixes="#all">
+                                    <xsl:copy-of select="@*" exclude-result-prefixes="#all"/>
                                     <xsl:call-template name="make-level-content">
                                         <xsl:with-param name="this" select="."/>
                                         <xsl:with-param name="content" select="$content"/>
@@ -193,7 +193,7 @@
         <xsl:for-each select="$this/node()">
             <xsl:choose>
                 <xsl:when test=". = $content">
-                    <xsl:copy-of select="."/>
+                    <xsl:copy-of select="." exclude-result-prefixes="#all"/>
                 </xsl:when>
                 <xsl:when test=".//node() intersect $content">
                     <xsl:choose>
@@ -204,8 +204,8 @@
                             </xsl:call-template>
                         </xsl:when>
                         <xsl:otherwise>
-                            <xsl:copy>
-                                <xsl:copy-of select="@*"/>
+                            <xsl:copy exclude-result-prefixes="#all">
+                                <xsl:copy-of select="@*" exclude-result-prefixes="#all"/>
                                 <xsl:call-template name="make-level-content">
                                     <xsl:with-param name="this" select="."/>
                                     <xsl:with-param name="content" select="$content"/>
@@ -224,7 +224,7 @@
     </xsl:function>
 
     <xsl:template match="@*|node()">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*|node()"/>
         </xsl:copy>
     </xsl:template>
diff --git a/src/main/resources/xml/xslt/dtbook-legacy-fix.xsl b/src/main/resources/xml/xslt/dtbook-legacy-fix.xsl
index c36d199f..cfda82d3 100644
--- a/src/main/resources/xml/xslt/dtbook-legacy-fix.xsl
+++ b/src/main/resources/xml/xslt/dtbook-legacy-fix.xsl
@@ -24,7 +24,7 @@
     </xsl:function>
 
     <xsl:template match="@*|node()">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*|node()"/>
         </xsl:copy>
     </xsl:template>
@@ -42,7 +42,7 @@
     <xsl:template match="meta/@scheme"/>
 
     <xsl:template match="head">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*|node()"/>
             <meta name="track:Guidelines" content="2015-1"/>
             <xsl:if test="not(meta/@name='dc:Source')">
@@ -83,7 +83,7 @@
         <xsl:if test="normalize-space(string-join((ancestor::li[parent::list/@type='ul'])[1]//text() intersect preceding::text(),''))=''">
             <xsl:text>• </xsl:text>
         </xsl:if>
-        <xsl:copy-of select="."/>
+        <xsl:copy-of select="." exclude-result-prefixes="#all"/>
     </xsl:template>
 
     <xsl:template match="list[@type='ol']/li//text()[normalize-space(.)!='']">
@@ -109,7 +109,7 @@
                 </xsl:when>
             </xsl:choose>
         </xsl:if>
-        <xsl:copy-of select="."/>
+        <xsl:copy-of select="." exclude-result-prefixes="#all"/>
     </xsl:template>
 
     <xsl:variable name="partition-type-classes" select="('cover','frontmatter','bodymatter','backmatter')"/>
diff --git a/src/main/resources/xml/xslt/dtbook-to-epub3.xsl b/src/main/resources/xml/xslt/dtbook-to-epub3.xsl
index c1a7615c..93449a43 100644
--- a/src/main/resources/xml/xslt/dtbook-to-epub3.xsl
+++ b/src/main/resources/xml/xslt/dtbook-to-epub3.xsl
@@ -1,7 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet xmlns:f="http://www.daisy.org/pipeline/modules/nordic-epub3-dtbook-migrator/dtbook-to-epub3.xsl" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0" xmlns:dtbook="http://www.daisy.org/z3986/2005/dtbook/"
-    xmlns:epub="http://www.idpf.org/2007/ops" xmlns="http://www.w3.org/1999/xhtml" xpath-default-namespace="http://www.w3.org/1999/xhtml" exclude-result-prefixes="#all"
-    xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:pf="http://www.daisy.org/ns/pipeline/functions" xmlns:math="http://www.w3.org/1998/Math/MathML">
+<xsl:stylesheet xmlns:f="http://www.daisy.org/ns/pipeline/internal-functions"
+                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                xmlns:dtbook="http://www.daisy.org/z3986/2005/dtbook/"
+                xmlns:epub="http://www.idpf.org/2007/ops"
+                xmlns:xs="http://www.w3.org/2001/XMLSchema"
+                xmlns:pf="http://www.daisy.org/ns/pipeline/functions"
+                xmlns:math="http://www.w3.org/1998/Math/MathML"
+                xmlns="http://www.w3.org/1999/xhtml"
+                xpath-default-namespace="http://www.w3.org/1999/xhtml"
+                exclude-result-prefixes="#all"
+                version="2.0">
 
     <xsl:import href="http://www.daisy.org/pipeline/modules/common-utils/numeral-conversion.xsl"/>
     <!--<xsl:import href="../../../../test/xspec/mock/numeral-conversion.xsl"/>-->
@@ -127,8 +135,8 @@
     <xsl:template match="dtbook:dtbook">
         <xsl:variable name="all-ids" select=".//@id"/>
         <html>
-            <xsl:namespace name="nordic" select="'http://www.mtm.se/epub/'"/>
-            <xsl:attribute name="epub:prefix" select="concat('z3998: ',$vocab-z3998-uri)"/>
+            <xsl:namespace name="epub" select="'http://www.idpf.org/2007/ops'"/>
+            <xsl:copy-of select="namespace::*[not(.='http://www.daisy.org/z3986/2005/dtbook/')]" exclude-result-prefixes="#all"/>
             <xsl:call-template name="f:attlist.dtbook">
                 <xsl:with-param name="all-ids" select="$all-ids" tunnel="yes"/>
             </xsl:call-template>
@@ -144,11 +152,12 @@
     </xsl:template>
 
     <xsl:template name="f:headmisc">
-        <xsl:apply-templates select="node()"/>
+        <xsl:apply-templates select="node()[not((self::*, following-sibling::*[1])[1][self::dtbook:meta[starts-with(@name,'dtb:')]])]"/>
     </xsl:template>
 
     <xsl:template match="dtbook:head">
         <head>
+            <xsl:copy-of select="namespace::*[not(.='http://www.daisy.org/z3986/2005/dtbook/')]" exclude-result-prefixes="#all"/>
             <xsl:call-template name="f:attlist.head"/>
             <meta charset="UTF-8"/>
             <title>
@@ -284,6 +293,7 @@
 
     <xsl:template match="dtbook:meta">
         <xsl:choose>
+            <xsl:when test="starts-with(@name,'dtb:')"/>
             <xsl:when test="matches(@name,'dc:title','i') or matches(@name,'dc:identifier','i') or matches(@name,'dc:format','i') or starts-with(@name,'track:')"/>
             <xsl:otherwise>
                 <meta>
@@ -309,6 +319,7 @@
 
     <xsl:template match="dtbook:book">
         <body>
+            <xsl:copy-of select="namespace::*[not(.='http://www.daisy.org/z3986/2005/dtbook/')]" exclude-result-prefixes="#all"/>
             <xsl:call-template name="f:attlist.book"/>
             <xsl:apply-templates select="node()"/>
         </body>
diff --git a/src/main/resources/xml/xslt/dtbook2005-to-dtbook110.xsl b/src/main/resources/xml/xslt/dtbook2005-to-dtbook110.xsl
index 6bfb852d..3aef6c16 100644
--- a/src/main/resources/xml/xslt/dtbook2005-to-dtbook110.xsl
+++ b/src/main/resources/xml/xslt/dtbook2005-to-dtbook110.xsl
@@ -529,7 +529,7 @@
           <xsl:value-of select="@id"/>
           <xsl:text>'&gt;</xsl:text>
           <xsl:variable name="nodeAsStr" select="string(.)"/>
-          <xsl:copy-of select="$nodeAsStr"/>
+          <xsl:copy-of select="$nodeAsStr" exclude-result-prefixes="#all"/>
           <xsl:text>&lt;/pagenum&gt;</xsl:text>
         </xsl:comment>
       </xsl:when>
diff --git a/src/main/resources/xml/xslt/epub3-to-dtbook.xsl b/src/main/resources/xml/xslt/epub3-to-dtbook.xsl
index fea2a1e6..a36daf47 100644
--- a/src/main/resources/xml/xslt/epub3-to-dtbook.xsl
+++ b/src/main/resources/xml/xslt/epub3-to-dtbook.xsl
@@ -851,7 +851,7 @@
     </xsl:template>
 
     <xsl:template name="f:attlist.noteref">
-        <xsl:if test="@class or f:types(.)[not(.='noteref')]">
+        <xsl:if test="f:classes(.)[not(.='noteref')] or f:types(.)[not(.='noteref')]">
             <xsl:message select="'the class attribute on a noteref was dropped since it is not allowed in Nordic DTBook.'"/>
         </xsl:if>
         <xsl:call-template name="f:attrs">
diff --git a/src/main/resources/xml/xslt/epub3-vocab.xsl b/src/main/resources/xml/xslt/epub3-vocab.xsl
index 0fb8968d..fccc22ec 100644
--- a/src/main/resources/xml/xslt/epub3-vocab.xsl
+++ b/src/main/resources/xml/xslt/epub3-vocab.xsl
@@ -2,7 +2,7 @@
 <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 	
 	<xsl:variable name="vocab-default"
-	              select="('cover','frontmatter','bodymatter','backmatter','volume','part','chapter','subchapter','division','abstract','foreword','preface','prologue','introduction','preamble','conclusion','epilogue','afterword','epigraph','toc','toc-brief','landmarks','loa','loi','lot','lov','appendix','colophon','credits','keywords','index','index-headnotes','index-legend','index-group','index-entry-list','index-entry','index-term','index-editor-note','index-locator','index-locator-list','index-locator-range','index-xref-preferred','index-xref-related','index-term-category','index-term-categories','glossary','glossterm','glossdef','bibliography','biblioentry','titlepage','halftitlepage','copyright-page','seriespage ','acknowledgments','imprint','imprimatur','contributors','other-credits','errata','dedication','revision-history','case-study','help','marginalia','notice','pullquote','sidebar','warning','halftitle','fulltitle','covertitle','title','subtitle','label','ordinal','bridgehead','learning-objective','learning-objectives','learning-outcome','learning-outcomes','learning-resource','learning-resources','learning-standard','learning-standards','answer','answers','assessment','assessments','feedback','fill-in-the-blank-problem','general-problem','qna','match-problem','multiple-choice-problem','practice','practices','question','true-false-problem','panel','panel-group','balloon','text-area','sound-area','annotation','note','footnote','rearnote','footnotes','rearnotes','annoref','biblioref','glossref','noteref','referrer','credit','keyword','topic-sentence','concluding-sentence','pagebreak','page-list','table','table-row','table-cell','list','list-item','figure')"/>
+	    select="('cover','frontmatter','bodymatter','backmatter','volume','part','chapter','subchapter','division','abstract','foreword','preface','prologue','introduction','preamble','conclusion','epilogue','afterword','epigraph','toc','toc-brief','landmarks','loa','loi','lot','lov','appendix','colophon','credits','keywords','index','index-headnotes','index-legend','index-group','index-entry-list','index-entry','index-term','index-editor-note','index-locator','index-locator-list','index-locator-range','index-xref-preferred','index-xref-related','index-term-category','index-term-categories','glossary','glossterm','glossdef','dictionary','bibliography','biblioentry','titlepage','halftitlepage','copyright-page','seriespage ','acknowledgments','imprint','imprimatur','contributors','other-credits','errata','dedication','revision-history','case-study','help','marginalia','notice','pullquote','sidebar','warning','halftitle','fulltitle','covertitle','title','subtitle','label','ordinal','bridgehead','learning-objective','learning-objectives','learning-outcome','learning-outcomes','learning-resource','learning-resources','learning-standard','learning-standards','answer','answers','assessment','assessments','feedback','fill-in-the-blank-problem','general-problem','qna','match-problem','multiple-choice-problem','practice','practices','question','true-false-problem','panel','panel-group','balloon','text-area','sound-area','annotation','note','footnote','rearnote','footnotes','rearnotes','endnotes','annoref','biblioref','glossref','noteref','referrer','credit','keyword','topic-sentence','concluding-sentence','pagebreak','page-list','table','table-row','table-cell','list','list-item','figure','antonym-group','condensed-entry','def','dictentry','endnote','etymology','example','gram-info','idiom','part-of-speech','part-of-speech-group','part-of-speech-list','phonetic-transcription','phrase-group','phrase-list','sense-group','sense-list','seriespage','synonym-group','tran','tran-info')"/>
 	
 	<xsl:variable name="vocab-z3998-uri" select="'http://www.daisy.org/z3998/2012/vocab/structure/#'"/>
 	<xsl:variable name="vocab-z3998"
diff --git a/src/main/resources/xml/xslt/epubcheck-report-to-pipeline-report.xsl b/src/main/resources/xml/xslt/epubcheck-report-to-pipeline-report.xsl
index be86fc08..427fcd38 100644
--- a/src/main/resources/xml/xslt/epubcheck-report-to-pipeline-report.xsl
+++ b/src/main/resources/xml/xslt/epubcheck-report-to-pipeline-report.xsl
@@ -139,7 +139,7 @@
                     <xsl:for-each select="distinct-values($messages/*/local-name())">
                         <xsl:variable name="name" select="."/>
                         <xsl:element name="d:{if ($name='exception') then 'exceptions' else if ($name='error') then 'errors' else if ($name='warn') then 'warnings' else 'hints'}">
-                            <xsl:copy-of select="$messages/*[local-name()=$name]"/>
+                            <xsl:copy-of select="$messages/*[local-name()=$name]" exclude-result-prefixes="#all"/>
                         </xsl:element>
                     </xsl:for-each>
                 </d:report>
diff --git a/src/main/resources/xml/xslt/fix-section-hierarchy.xsl b/src/main/resources/xml/xslt/fix-section-hierarchy.xsl
index 5edae8ad..430f38d1 100644
--- a/src/main/resources/xml/xslt/fix-section-hierarchy.xsl
+++ b/src/main/resources/xml/xslt/fix-section-hierarchy.xsl
@@ -5,7 +5,7 @@
     <xsl:param name="body-is-section" required="yes"/>
 
     <xsl:template match="@*|node()">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*|node()"/>
         </xsl:copy>
     </xsl:template>
diff --git a/src/main/resources/xml/xslt/generate-missing-headlines.xsl b/src/main/resources/xml/xslt/generate-missing-headlines.xsl
index 4a918ee8..0cf6ec74 100644
--- a/src/main/resources/xml/xslt/generate-missing-headlines.xsl
+++ b/src/main/resources/xml/xslt/generate-missing-headlines.xsl
@@ -12,7 +12,7 @@
     <xsl:variable name="translations" select="document('../i18n/translations.xml')/*"/>
 
     <xsl:template match="@*|node()">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*|node()"/>
         </xsl:copy>
     </xsl:template>
@@ -75,7 +75,7 @@
         <xsl:message select="$title"/>
         <xsl:message select="('en',ancestor-or-self::*[@xml:lang|@lang]/(@xml:lang|@lang)[1])[last()]"/>
         <xsl:variable name="translated-title" select="pf:i18n-translate($title,('en',ancestor-or-self::*[@xml:lang|@lang]/(@xml:lang|@lang)[1])[last()],$translations)"/>
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*"/>
             <xsl:if test="not(h1 | h2 | h3 | h4 | h5 | h6)">
                 <!-- sectioning element is missing headline; let's generate one! -->
diff --git a/src/main/resources/xml/xslt/html-to-opf-metadata.xsl b/src/main/resources/xml/xslt/html-to-opf-metadata.xsl
index ceccadc2..fe389859 100644
--- a/src/main/resources/xml/xslt/html-to-opf-metadata.xsl
+++ b/src/main/resources/xml/xslt/html-to-opf-metadata.xsl
@@ -7,7 +7,7 @@
 
             <xsl:variable name="identifier" select="//html:head/html:meta[lower-case(@name)=('dc:identifier','dct:identifier','dcterms:identifier','dtb:uid')][1]"/>
             <dc:identifier id="pub-id">
-                <xsl:copy-of select="$identifier/@scheme"/>
+                <xsl:copy-of select="$identifier/@scheme" exclude-result-prefixes="#all"/>
                 <xsl:value-of select="($identifier/@content,replace(replace(string(current-dateTime()),'\+.*',''),'[^\d]',''))[1]"/>
             </dc:identifier>
 
@@ -37,7 +37,7 @@
                     <xsl:when test="matches($lcname,'^dc:')">
                         <xsl:element name="{$lcname}">
                             <xsl:attribute name="id" select="$id"/>
-                            <xsl:copy-of select="@scheme"/>
+                            <xsl:copy-of select="@scheme" exclude-result-prefixes="#all"/>
                             <xsl:value-of select="@content"/>
                         </xsl:element>
                         <xsl:if test="@role">
@@ -49,14 +49,14 @@
                     <xsl:when test="matches($lcname,'^dct:') or matches($lcname,'^dcterms:')">
                         <meta property="{replace($lcname,'^dct:','dcterms:')}">
                             <xsl:attribute name="id" select="$id"/>
-                            <xsl:copy-of select="@scheme"/>
+                            <xsl:copy-of select="@scheme" exclude-result-prefixes="#all"/>
                             <xsl:value-of select="@content"/>
                         </meta>
                     </xsl:when>
                     <xsl:when test="@name='dtb:narrator'">
                         <dc:contributor id="{$id}">
                             <xsl:attribute name="id" select="$id"/>
-                            <xsl:copy-of select="@scheme"/>
+                            <xsl:copy-of select="@scheme" exclude-result-prefixes="#all"/>
                             <xsl:value-of select="@content"/>
                         </dc:contributor>
                         <meta refines="#{$id}" property="role" scheme="marc:relators">nrt</meta>
@@ -64,7 +64,7 @@
                     <xsl:when test="@name='dtb:producer'">
                         <dc:contributor id="{$id}">
                             <xsl:attribute name="id" select="$id"/>
-                            <xsl:copy-of select="@scheme"/>
+                            <xsl:copy-of select="@scheme" exclude-result-prefixes="#all"/>
                             <xsl:value-of select="@content"/>
                         </dc:contributor>
                         <meta refines="#{$id}" property="role" scheme="marc:relators">pro</meta>
@@ -80,7 +80,7 @@
                     <xsl:otherwise>
                         <meta property="{@name}">
                             <xsl:attribute name="id" select="$id"/>
-                            <xsl:copy-of select="@scheme"/>
+                            <xsl:copy-of select="@scheme" exclude-result-prefixes="#all"/>
                             <xsl:value-of select="@content"/>
                         </meta>
                     </xsl:otherwise>
diff --git a/src/main/resources/xml/xslt/improve-html-report-readability.xsl b/src/main/resources/xml/xslt/improve-html-report-readability.xsl
index 0d8fb87c..18f21e91 100644
--- a/src/main/resources/xml/xslt/improve-html-report-readability.xsl
+++ b/src/main/resources/xml/xslt/improve-html-report-readability.xsl
@@ -14,23 +14,23 @@
     -->
 
     <xsl:template match="@* | node()">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@* | node()"/>
         </xsl:copy>
     </xsl:template>
 
     <xsl:template match="@class[tokenize(.,'\s+')=('error','fatal','exception','message-error','message-fatal','message-exception')]">
-        <xsl:copy-of select="."/>
+        <xsl:copy-of select="." exclude-result-prefixes="#all"/>
         <xsl:attribute name="style" select="concat(parent::*/@style, 'background-color: #f2dede; ')"/>
     </xsl:template>
 
     <xsl:template match="@class[tokenize(.,'\s+')=('warn','warning','message-warn','message-warning')]">
-        <xsl:copy-of select="."/>
+        <xsl:copy-of select="." exclude-result-prefixes="#all"/>
         <xsl:attribute name="style" select="concat(parent::*/@style, 'background-color: #fcf8e3; ')"/>
     </xsl:template>
 
     <xsl:template match="li[.//pre[starts-with(text(),'/*')]]">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*"/>
             <xsl:attribute name="title" select="replace(replace((.//pre[starts-with(text(),'/*')]/text())[1],'\*:',''),'\[namespace[^\]]*\]','')"/>
             <xsl:apply-templates select="node()"/>
@@ -40,7 +40,7 @@
     <xsl:template match="pre[starts-with(text(),'/*')]"/>
 
     <xsl:template match="h2[ancestor::div[@class='document-validation-report']]">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*"/>
             <xsl:attribute name="style" select="string-join((@style,'font-size: 24px;'),' ')"/>
             <xsl:apply-templates select="node()"/>
@@ -56,7 +56,7 @@
 
     <xsl:template match="h3[text()='Location (XPath)']" priority="2"/>
     <xsl:template match="h3[ancestor::div[@class='document-validation-report']]">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*"/>
             <xsl:attribute name="style" select="string-join((@style,'font-size: 18px;'),' ')"/>
             <xsl:apply-templates select="node()"/>
@@ -64,7 +64,7 @@
     </xsl:template>
 
     <xsl:template match="p[text()='0 issues found.']">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*"/>
             <xsl:attribute name="style" select="string-join((@style, 'background-color: #AAFFAA;'),' ')"/>
             <xsl:apply-templates select="node()"/>
@@ -78,7 +78,7 @@
         <xsl:variable name="columnNumber" select="replace($parts[starts-with(.,'columnNumber:')][1],'[^\d]','')"/>
         <xsl:variable name="message"
             select="string-join($parts[not(starts-with(.,'org.xml.sax.SAXParseException') or starts-with(.,'systemId:') or starts-with(.,'lineNumber:') or starts-with(.,'columnNumber:'))],'; ')"/>
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*"/>
             <xsl:value-of select="$filename"/>
             <xsl:if test="$lineNumber or $columnNumber">
@@ -96,14 +96,14 @@
 
     <xsl:template match="ul[.//text()[contains(., 'lineNumber')]]">
         <p>Note that line numbers tend to be offset by a couple of lines because the doctype and xml declarations are not counted as lines.</p>
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@* | node()"/>
         </xsl:copy>
     </xsl:template>
 
     <xsl:template match="div[@class='document-validation-report' and count(*)=0]" priority="2"/>
     <xsl:template match="div[@class='document-validation-report']">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@* | node()"/>
             <hr/>
         </xsl:copy>
diff --git a/src/main/resources/xml/xslt/info-report.xsl b/src/main/resources/xml/xslt/info-report.xsl
index 7cf4caa2..6a2a55f3 100644
--- a/src/main/resources/xml/xslt/info-report.xsl
+++ b/src/main/resources/xml/xslt/info-report.xsl
@@ -29,15 +29,15 @@
                     </xsl:variable>
                     <xsl:for-each select="$types/*">
                         <xsl:sort select="xs:integer(@content)"/>
-                        <xsl:copy-of select="."/>
+                        <xsl:copy-of select="." exclude-result-prefixes="#all"/>
                     </xsl:for-each>
                     <xsl:for-each select="$classes/*">
                         <xsl:sort select="xs:integer(@content)"/>
-                        <xsl:copy-of select="."/>
+                        <xsl:copy-of select="." exclude-result-prefixes="#all"/>
                     </xsl:for-each>
                     <xsl:for-each select="$elements/*">
                         <xsl:sort select="xs:integer(@content)"/>
-                        <xsl:copy-of select="."/>
+                        <xsl:copy-of select="." exclude-result-prefixes="#all"/>
                     </xsl:for-each>
                 </d:properties>
             </d:document-info>
diff --git a/src/main/resources/xml/xslt/make-uris-relative-to-document.xsl b/src/main/resources/xml/xslt/make-uris-relative-to-document.xsl
index b9e4b535..1b857f5f 100644
--- a/src/main/resources/xml/xslt/make-uris-relative-to-document.xsl
+++ b/src/main/resources/xml/xslt/make-uris-relative-to-document.xsl
@@ -5,7 +5,7 @@
     <xsl:variable name="doc-base" select="if (/html/head/base[@href][1]) then resolve-uri(normalize-space(/html/head/base[@href][1]/@href),base-uri(/*)) else base-uri(/*)"/>
 
     <xsl:template match="/*|@*|node()">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*|node()"/>
         </xsl:copy>
     </xsl:template>
@@ -18,7 +18,7 @@
                 <xsl:attribute name="{name()}" select="concat('#',substring-after(.,'#'))"/>
             </xsl:when>
             <xsl:otherwise>
-                <xsl:copy-of select="."/>
+                <xsl:copy-of select="." exclude-result-prefixes="#all"/>
             </xsl:otherwise>
         </xsl:choose>
     </xsl:template>
diff --git a/src/main/resources/xml/xslt/navdoc-nordic-normalization.xsl b/src/main/resources/xml/xslt/navdoc-nordic-normalization.xsl
index 509fbd7e..21274e90 100644
--- a/src/main/resources/xml/xslt/navdoc-nordic-normalization.xsl
+++ b/src/main/resources/xml/xslt/navdoc-nordic-normalization.xsl
@@ -1,27 +1,35 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-result-prefixes="#all" version="2.0" xmlns:epub="http://www.idpf.org/2007/ops"
-    xmlns="http://www.w3.org/1999/xhtml" xpath-default-namespace="http://www.w3.org/1999/xhtml">
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                xmlns:xs="http://www.w3.org/2001/XMLSchema"
+                xmlns:epub="http://www.idpf.org/2007/ops"
+                xmlns:f="http://www.daisy.org/ns/pipeline/internal-functions"
+                xmlns="http://www.w3.org/1999/xhtml"
+                xpath-default-namespace="http://www.w3.org/1999/xhtml"
+                exclude-result-prefixes="#all"
+                version="2.0">
 
     <xsl:param name="identifier" required="yes"/>
     <xsl:param name="title" required="yes"/>
     <xsl:param name="supplier" select="''"/>
     <xsl:param name="publisher" required="yes"/>
     <xsl:variable name="lang" select="string((/html/head/meta[@name='dc:language']/@content, /*/@xml:lang, /*/@lang)[1])"/>
+    
+    <xsl:include href="update-epub-prefixes.xsl"/>
 
     <xsl:template match="@*|node()">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*[not(name()=('lang','xml:lang'))] | node()"/>
         </xsl:copy>
     </xsl:template>
 
     <xsl:template match="/*">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:namespace name="epub" select="'http://www.idpf.org/2007/ops'"/>
-            <xsl:namespace name="nordic" select="'http://www.mtm.se/epub/'"/>
             <xsl:apply-templates select="@*[not(name()=('lang','xml:lang'))]"/>
             <xsl:attribute name="xml:lang" select="$lang"/>
             <xsl:attribute name="lang" select="$lang"/>
-            <xsl:attribute name="epub:prefix" select="'z3998: http://www.daisy.org/z3998/2012/vocab/structure/#'"/>
+            <xsl:variable name="prefixes" select="f:prefixes(/*/head, /*/body, 'nordic')"/>
+            <xsl:attribute name="epub:prefix" select="string-join($prefixes, ' ')"/>
             <xsl:apply-templates select="node()"/>
         </xsl:copy>
     </xsl:template>
diff --git a/src/main/resources/xml/xslt/navdoc-to-outline.xsl b/src/main/resources/xml/xslt/navdoc-to-outline.xsl
index e149500f..86e6db12 100644
--- a/src/main/resources/xml/xslt/navdoc-to-outline.xsl
+++ b/src/main/resources/xml/xslt/navdoc-to-outline.xsl
@@ -10,11 +10,13 @@
     </xsl:template>
 
     <xsl:template match="/*">
-        <xsl:copy>
-            <xsl:attribute name="xml:base" select="base-uri(/*)"/>
-            <xsl:attribute name="epub:prefix" select="'z3998: http://www.daisy.org/z3998/2012/vocab/structure/#'"/>
-            <xsl:namespace name="nordic" select="'http://www.mtm.se/epub/'"/>
+        <xsl:copy exclude-result-prefixes="#all">
+            <xsl:copy-of select="(/* | opf:*)/namespace::*[not(.=('http://www.idpf.org/2007/opf','http://purl.org/dc/elements/1.1/','http://purl.org/dc/terms/'))]"/>
             <xsl:namespace name="epub" select="'http://www.idpf.org/2007/ops'"/>
+            <xsl:attribute name="xml:base" select="base-uri(/*)"/>
+            <xsl:if test="@prefix">
+                <xsl:attribute name="epub:prefix" select="string-join((/* | opf:*)/@prefix, ' ')"/>
+            </xsl:if>
 
             <head/>
             <body>
@@ -23,8 +25,8 @@
                 <xsl:variable name="basedir" select="replace(base-uri(),'[^/]+$','')"/>
                 <xsl:variable name="spine-annotated">
                     <xsl:for-each select="$spine">
-                        <xsl:copy>
-                            <xsl:copy-of select="@*"/>
+                        <xsl:copy exclude-result-prefixes="#all">
+                            <xsl:copy-of select="@*" exclude-result-prefixes="#all"/>
                             <xsl:attribute name="level" select="pf:outline-level($spine, $toc, position())"/>
                         </xsl:copy>
                     </xsl:for-each>
@@ -95,7 +97,7 @@
 
     <xsl:template match="span">
         <xsl:element name="{concat('h',min((count(ancestor::li),6)))}">
-            <xsl:copy-of select="(@*|node())"/>
+            <xsl:copy-of select="(@*|node())" exclude-result-prefixes="#all"/>
         </xsl:element>
     </xsl:template>
 
diff --git a/src/main/resources/xml/xslt/opf-to-html-metadata.xsl b/src/main/resources/xml/xslt/opf-to-html-metadata.xsl
index 20863721..bd4e8780 100644
--- a/src/main/resources/xml/xslt/opf-to-html-metadata.xsl
+++ b/src/main/resources/xml/xslt/opf-to-html-metadata.xsl
@@ -11,15 +11,18 @@
     <xsl:template match="opf:metadata">
         <xsl:text>
 </xsl:text>
-        <head xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:nordic="http://www.mtm.se/epub/">
-            <xsl:copy-of select="namespace::*[not(.=('http://www.w3.org/1999/xhtml','http://www.idpf.org/2007/opf'))]"/>
+        <head xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:nordic="http://www.mtm.se/epub/" xmlns:epub="http://www.idpf.org/2007/ops">
+            <xsl:copy-of select="namespace::*[not(.=('http://www.w3.org/1999/xhtml','http://www.idpf.org/2007/opf'))]" exclude-result-prefixes="#all"/>
+            <xsl:if test="count(ancestor-or-self::*/@prefix)">
+                <xsl:attribute name="epub:prefix" select="string-join(ancestor-or-self::*/@prefix, ' ')"/>
+            </xsl:if>
             <xsl:text>
     </xsl:text>
             <meta charset="UTF-8"/>
             <xsl:text>
     </xsl:text>
             <title>
-                <xsl:copy-of select="dc:title[1]/(@scheme|@http-equiv|@xml:lang|@dir|namespace::*[not(.=('http://www.w3.org/1999/xhtml','http://www.idpf.org/2007/opf'))]|node())"/>
+                <xsl:copy-of select="dc:title[1]/(@scheme|@http-equiv|@xml:lang|@dir|namespace::*[not(.=('http://www.w3.org/1999/xhtml','http://www.idpf.org/2007/opf'))]|node())" exclude-result-prefixes="#all"/>
             </title>
             <xsl:text>
     </xsl:text>
@@ -37,7 +40,7 @@
                 <xsl:text>
     </xsl:text>
                 <meta name="{name()}" content="{normalize-space(.)}">
-                    <xsl:copy-of select="@scheme|@http-equiv|@xml:lang|@dir|namespace::*[not(.=('http://www.w3.org/1999/xhtml','http://www.idpf.org/2007/opf'))]"/>
+                    <xsl:copy-of select="@scheme|@http-equiv|@xml:lang|@dir|namespace::*[not(.=('http://www.w3.org/1999/xhtml','http://www.idpf.org/2007/opf'))]" exclude-result-prefixes="#all"/>
                 </meta>
             </xsl:for-each>
             <xsl:for-each select="opf:meta[@property and not(@refines) and not(@property=('dcterms:modified','nordic:guidelines','nordic:supplier'))]">
@@ -46,7 +49,7 @@
                 <xsl:text>
     </xsl:text>
                 <meta name="{@property}" content="{normalize-space(.)}">
-                    <xsl:copy-of select="@scheme|@http-equiv|@xml:lang|@dir|namespace::*[not(.=('http://www.w3.org/1999/xhtml','http://www.idpf.org/2007/opf'))]"/>
+                    <xsl:copy-of select="@scheme|@http-equiv|@xml:lang|@dir|namespace::*[not(.=('http://www.w3.org/1999/xhtml','http://www.idpf.org/2007/opf'))]" exclude-result-prefixes="#all"/>
                 </meta>
             </xsl:for-each>
 
diff --git a/src/main/resources/xml/xslt/pretty-print.xsl b/src/main/resources/xml/xslt/pretty-print.xsl
index 7561915f..a5f16819 100644
--- a/src/main/resources/xml/xslt/pretty-print.xsl
+++ b/src/main/resources/xml/xslt/pretty-print.xsl
@@ -22,7 +22,7 @@
     <xsl:template match="@*|node()">
         <xsl:choose>
             <xsl:when test="ancestor::*[matches(local-name(),'^h[d\d]$')]">
-                <xsl:copy>
+                <xsl:copy exclude-result-prefixes="#all">
                     <xsl:apply-templates select="@*|node()"/>
                 </xsl:copy>
             </xsl:when>
@@ -34,7 +34,7 @@
                         <xsl:text>    </xsl:text>
                     </xsl:for-each>
                 </xsl:if>
-                <xsl:copy>
+                <xsl:copy exclude-result-prefixes="#all">
                     <xsl:apply-templates select="@*|node()"/>
                     <xsl:if test="not(self::*[matches(local-name(),'^h[d\d]$')]) and self::* and * and (text() or $preserve-empty-whitespace='false') and normalize-space(string-join(text(),''))=''">
                         <xsl:text>
@@ -49,7 +49,7 @@
     </xsl:template>
 
     <xsl:template match="/*">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*|node()"/>
             <xsl:if test="normalize-space(string-join(text(),''))=''">
                 <xsl:text>
diff --git a/src/main/resources/xml/xslt/replace-sections-with-documents.xsl b/src/main/resources/xml/xslt/replace-sections-with-documents.xsl
index 4f3ca479..78b3b109 100644
--- a/src/main/resources/xml/xslt/replace-sections-with-documents.xsl
+++ b/src/main/resources/xml/xslt/replace-sections-with-documents.xsl
@@ -1,9 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-result-prefixes="#all" version="2.0" xmlns:epub="http://www.idpf.org/2007/ops"
-    xmlns:html="http://www.w3.org/1999/xhtml">
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                xmlns:xs="http://www.w3.org/2001/XMLSchema"
+                xmlns:epub="http://www.idpf.org/2007/ops"
+                xmlns:html="http://www.w3.org/1999/xhtml"
+                xmlns:f="http://www.daisy.org/ns/pipeline/internal-functions"
+                exclude-result-prefixes="#all"
+                version="2.0">
     
     <xsl:output indent="no"/>
     
+    <xsl:include href="update-epub-prefixes.xsl"/>
+    
     <xsl:template match="/*">
         <xsl:choose>
             <xsl:when test="local-name()='wrapper'">
@@ -27,6 +34,19 @@
             <xsl:apply-templates select="@* | node()"/>
         </xsl:copy>
     </xsl:template>
+    
+    <xsl:template match="html:html">
+        <xsl:param name="collection" tunnel="yes" as="element()*"/>
+        <xsl:variable name="prefixes" select="distinct-values(for $document in ($collection) return f:prefixes($document/html:head, $document/html:body, ()))"/>
+        
+        <xsl:copy exclude-result-prefixes="#all">
+            <xsl:copy-of select="(. | $collection | $collection/*)/namespace::*" exclude-result-prefixes="#all"/>
+            <xsl:if test="count($prefixes)">
+                <xsl:attribute name="epub:prefix" select="string-join($prefixes, ' ')"/>
+            </xsl:if>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
 
     <xsl:template match="html:section[@xml:base]">
         <xsl:param name="collection" tunnel="yes" as="element()*"/>
diff --git a/src/main/resources/xml/xslt/replace-single-html-hrefs-with-multi-html-hrefs.xsl b/src/main/resources/xml/xslt/replace-single-html-hrefs-with-multi-html-hrefs.xsl
index 11830197..379e9dcd 100644
--- a/src/main/resources/xml/xslt/replace-single-html-hrefs-with-multi-html-hrefs.xsl
+++ b/src/main/resources/xml/xslt/replace-single-html-hrefs-with-multi-html-hrefs.xsl
@@ -9,7 +9,7 @@
     <xsl:variable name="base-dir" select="replace(base-uri(collection()[1]/*),'[^/]+$','')"/>
 
     <xsl:template match="@*|node()">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*|node()"/>
         </xsl:copy>
     </xsl:template>
@@ -19,7 +19,7 @@
         <xsl:variable name="target-base" select="$html//*[@id=$id]/base-uri(.)"/>
         <xsl:variable name="href" select="substring-after($target-base,$base-dir)"/>
         
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:attribute name="href" select="concat($href,'#',$id)"/>
             <xsl:apply-templates select="@* except @href | node()"/>
         </xsl:copy>
diff --git a/src/main/resources/xml/xslt/split-html.annotate.xsl b/src/main/resources/xml/xslt/split-html.annotate.xsl
index 6b41eeda..f3cb9e53 100644
--- a/src/main/resources/xml/xslt/split-html.annotate.xsl
+++ b/src/main/resources/xml/xslt/split-html.annotate.xsl
@@ -13,39 +13,39 @@
         <xsl:variable name="padding-size"
             select="string-length(string(count(/*/body/( section | article | section[f:types(.)='part']/(section|article)[f:types(.)=$division-types] | (section|article)[f:types(.)='bodymatter']/section[f:types(.)='rearnotes'] ))))"/>
 
-        <xsl:copy>
-            <xsl:copy-of select="@*"/>
+        <xsl:copy exclude-result-prefixes="#all">
+            <xsl:copy-of select="@*" exclude-result-prefixes="#all"/>
             <xsl:attribute name="xml:base" select="base-uri(/*)"/>
-            <xsl:copy-of select="head"/>
+            <xsl:copy-of select="head" exclude-result-prefixes="#all"/>
             <xsl:for-each select="body">
-                <xsl:copy>
-                    <xsl:copy-of select="@*"/>
+                <xsl:copy exclude-result-prefixes="#all">
+                    <xsl:copy-of select="@*" exclude-result-prefixes="#all"/>
                     <xsl:variable name="top-level-sections" select="section | article"/>
                     <xsl:variable name="part-sections" select="$top-level-sections[f:types(.)='part']/(section | article)[f:types(.)=$division-types]"/>
                     <xsl:variable name="bodymatter-rearnotes" select="($top-level-sections, $part-sections)[not(f:types(.)=('cover','frontmatter','backmatter'))]/section[f:types(.)='rearnotes']"/>
                     <xsl:for-each select="$top-level-sections | $part-sections | $bodymatter-rearnotes">
-                        <xsl:copy>
+                        <xsl:copy exclude-result-prefixes="#all">
                             <xsl:variable name="types" select="f:types(.)"/>
                             <xsl:variable name="partition" select="((ancestor-or-self::*/f:types(.)[.=$partition-types]), 'bodymatter')[1]"/>
                             <xsl:variable name="division" select="if (count($types[.=$division-types])) then ($types[.=$division-types])[1] else if ($partition='bodymatter') then 'chapter' else ()"/>
                             <xsl:variable name="filename"
                                 select="concat($identifier,'-',f:zero-pad(string(position()),$padding-size),'-',if ($division) then tokenize($division,':')[last()] else $partition)"/>
 
-                            <xsl:copy-of select="@*"/>
+                            <xsl:copy-of select="@*" exclude-result-prefixes="#all"/>
                             <xsl:attribute name="xml:base" select="concat($output-dir,$filename,'.xhtml')"/>
                             <xsl:attribute name="epub:type" select="string-join(($partition, $division, $types[not(.=($partition-types,$division-types))]),' ')"/>
 
                             <xsl:choose>
                                 <xsl:when test="$division='part'">
-                                    <xsl:copy-of select="node()[not((self::section | self::article)[f:types(.)=$division-types])]"/>
+                                    <xsl:copy-of select="node()[not((self::section | self::article)[f:types(.)=$division-types])]" exclude-result-prefixes="#all"/>
 
                                 </xsl:when>
                                 <xsl:when test="$partition='bodymatter'">
-                                    <xsl:copy-of select="node()[not(self::section[f:types(.)='rearnotes'])]"/>
+                                    <xsl:copy-of select="node()[not(self::section[f:types(.)='rearnotes'])]" exclude-result-prefixes="#all"/>
 
                                 </xsl:when>
                                 <xsl:otherwise>
-                                    <xsl:copy-of select="node()"/>
+                                    <xsl:copy-of select="node()" exclude-result-prefixes="#all"/>
 
                                 </xsl:otherwise>
                             </xsl:choose>
diff --git a/src/main/resources/xml/xslt/split-html.xsl b/src/main/resources/xml/xslt/split-html.xsl
index 66500fa4..a35cda22 100644
--- a/src/main/resources/xml/xslt/split-html.xsl
+++ b/src/main/resources/xml/xslt/split-html.xsl
@@ -1,13 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet xmlns:f="http://www.daisy.org/ns/pipeline/split-html/internal-functions" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0" xmlns:epub="http://www.idpf.org/2007/ops"
-    xmlns="http://www.w3.org/1999/xhtml" xpath-default-namespace="http://www.w3.org/1999/xhtml" exclude-result-prefixes="#all" xmlns:xs="http://www.w3.org/2001/XMLSchema"
-    xmlns:pf="http://www.daisy.org/ns/pipeline/functions" xmlns:svg="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:m="http://www.w3.org/1998/Math/MathML">
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                xmlns:epub="http://www.idpf.org/2007/ops"
+                xmlns:f="http://www.daisy.org/ns/pipeline/internal-functions"
+                xmlns:m="http://www.w3.org/1998/Math/MathML"
+                xmlns:pf="http://www.daisy.org/ns/pipeline/functions"
+                xmlns:svg="http://www.w3.org/2000/svg"
+                xmlns:xlink="http://www.w3.org/1999/xlink"
+                xmlns:xs="http://www.w3.org/2001/XMLSchema"
+                xmlns="http://www.w3.org/1999/xhtml"
+                xpath-default-namespace="http://www.w3.org/1999/xhtml"
+                exclude-result-prefixes="#all"
+                version="2.0">
 
     <xsl:import href="http://www.daisy.org/pipeline/modules/file-utils/uri-functions.xsl"/>
     <!--    <xsl:import href="../../../../test/xspec/mock/uri-functions.xsl"/>-->
+    <xsl:import href="update-epub-prefixes.xsl"/>
 
     <xsl:template match="@*|node()">
-        <xsl:copy>
+        <xsl:copy exclude-result-prefixes="#all">
             <xsl:apply-templates select="@*|node()"/>
         </xsl:copy>
     </xsl:template>
@@ -17,23 +27,28 @@
             <xsl:attribute name="xml:base" select="base-uri(/*)"/>
 
             <xsl:variable name="base" select="base-uri(/*)"/>
+            <xsl:variable name="head" select="/html/head"/>
             <xsl:for-each select="/html/body/*">
                 <xsl:variable name="body" select="."/>
 
                 <html>
-                    <xsl:namespace name="nordic" select="'http://www.mtm.se/epub/'"/>
-                    <xsl:copy-of select="/*/@* | @xml:base"/>
+                    <xsl:copy-of select="/*/@* | @xml:base" exclude-result-prefixes="#all"/>
+                    <xsl:namespace name="epub" select="'http://www.idpf.org/2007/ops'"/>
+                    <xsl:variable name="prefixes" select="f:prefixes($head, $body, ())"/>
+                    <xsl:if test="count($prefixes)">
+                        <xsl:attribute name="epub:prefix" select="string-join($prefixes, ' ')"/>
+                    </xsl:if>
                     <xsl:text>
 </xsl:text>
                     <head>
                         <xsl:namespace name="dc" select="'http://purl.org/dc/elements/1.1/'"/>
                         <xsl:namespace name="dcterms" select="'http://purl.org/dc/terms/'"/>
-                        <xsl:copy-of select="/html/head/@*"/>
+                        <xsl:copy-of select="/html/head/@*" exclude-result-prefixes="#all"/>
                         <xsl:for-each select="/html/head/*">
                             <xsl:choose>
                                 <xsl:when test="self::link[@rel=('prev','next')]"/>
                                 <xsl:otherwise>
-                                    <xsl:copy-of select="."/>
+                                    <xsl:copy-of select="." exclude-result-prefixes="#all"/>
                                 </xsl:otherwise>
                             </xsl:choose>
                         </xsl:for-each>
@@ -84,7 +99,7 @@
                 </xsl:choose>
             </xsl:when>
             <xsl:otherwise>
-                <xsl:copy-of select="."/>
+                <xsl:copy-of select="." exclude-result-prefixes="#all"/>
             </xsl:otherwise>
         </xsl:choose>
     </xsl:template>
diff --git a/src/main/resources/xml/xslt/update-epub-prefixes.xsl b/src/main/resources/xml/xslt/update-epub-prefixes.xsl
new file mode 100644
index 00000000..abb7e89c
--- /dev/null
+++ b/src/main/resources/xml/xslt/update-epub-prefixes.xsl
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                xmlns:xs="http://www.w3.org/2001/XMLSchema"
+                xmlns:epub="http://www.idpf.org/2007/ops"
+                xmlns:f="http://www.daisy.org/ns/pipeline/internal-functions"
+                xmlns="http://www.w3.org/1999/xhtml"
+                xpath-default-namespace="http://www.w3.org/1999/xhtml"
+                exclude-result-prefixes="#all"
+                version="2.0">
+    
+    <xsl:output indent="no"/>
+    
+    <xsl:template match="@* | node()">
+        <xsl:copy exclude-result-prefixes="#all">
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+    
+    <xsl:template match="/*">
+        <xsl:copy exclude-result-prefixes="#all">
+            <xsl:namespace name="epub" select="'http://www.idpf.org/2007/ops'"/>
+            <xsl:copy-of select="@*" exclude-result-prefixes="#all"/>
+            <xsl:attribute name="epub:prefix" select="string-join(f:prefixes(/*/head, /*/body, 'nordic'), ' ')"/>
+            <xsl:apply-templates select="node()"/>
+        </xsl:copy>
+    </xsl:template>
+    
+    <xsl:template match="/*/*//@epub:prefix"/>
+    
+    <xsl:function name="f:prefixes">
+        <xsl:param name="head" as="element()?"/>
+        <xsl:param name="body" as="element()?"/>
+        <xsl:param name="other" as="xs:string*"/>
+        <xsl:variable name="prefixes" select="distinct-values(($other, if ($head) then f:head-prefixes($head) else (), if ($body) then f:body-prefixes($body) else ()))"/>
+        <xsl:variable name="prefixes" select="for $prefix in ($prefixes) return if ($prefix = ('dc', 'dcterms', 'marc', 'media', 'onix', 'xsd')) then () else $prefix"/>
+        <xsl:variable name="prefixes" select="for $prefix in ($prefixes) return concat($prefix, ': ', f:prefix-uri($prefix, ($head/parent::*, $head, $body)))"/>
+        <xsl:variable name="prefixes" select="for $prefix in ($prefixes) return if (matches($prefix, '^[^\s]+:\s*[^\s]+$')) then $prefix else ()"/>
+        <xsl:sequence select="$prefixes"/>
+    </xsl:function>
+    
+    <xsl:function name="f:head-prefixes" as="xs:string*">
+        <xsl:param name="head" as="element()"/>
+        <xsl:sequence select="distinct-values(for $name in ($head/*:meta/string(@name)) return if (contains($name, ':')) then substring-before($name, ':') else ())"/>
+    </xsl:function>
+    
+    <xsl:function name="f:body-prefixes" as="xs:string*">
+        <xsl:param name="body" as="element()"/>
+        <xsl:sequence select="distinct-values(for $type in ($body/descendant-or-self::*/tokenize(@epub:type, '\s+')) return if (contains($type, ':')) then substring-before($type, ':') else ())"/>
+    </xsl:function>
+    
+    <xsl:function name="f:prefix-uri" as="xs:string">
+        <xsl:param name="prefix" as="xs:string"/>
+        <xsl:param name="contexts" as="element()*"/>
+        <xsl:variable name="existing-prefixes" select="string-join(($contexts/ancestor::*/descendant-or-self::*/@epub:prefix), ' ')" as="xs:string"/>
+        <xsl:sequence select="if ($prefix = 'nordic') then 'http://www.mtm.se/epub/' else
+                              if ($prefix = 'z3998') then 'http://www.daisy.org/z3998/2012/vocab/structure/#' else
+                              if ($prefix = 'a11y') then 'http://www.idpf.org/epub/vocab/package/a11y/#' else
+                              if ($prefix = 'msv') then 'http://www.idpf.org/epub/vocab/structure/magazine/#' else
+                              if ($prefix = 'prism') then 'http://www.prismstandard.org/specifications/3.0/PRISM_CV_Spec_3.0.htm#' else
+                              if (concat($prefix,':') = tokenize($existing-prefixes, '\s+')[position() mod 2 = 1]) then replace($existing-prefixes, concat('(^|.*\s)', $prefix ,':\s*([^\s]+)(\s.*|$)'), '$2') else
+                              string((for $context in ($contexts) return namespace-uri-for-prefix($prefix, $context))[1])"/>
+    </xsl:function>
+    
+</xsl:stylesheet>
diff --git a/src/test/resources/C00000.epub b/src/test/resources/C00000.epub
index e723eb2e..acef2993 100644
Binary files a/src/test/resources/C00000.epub and b/src/test/resources/C00000.epub differ
diff --git a/src/test/resources/C00000/EPUB/C00000-04-chapter.xhtml b/src/test/resources/C00000/EPUB/C00000-04-chapter.xhtml
index e43dab62..33ae3392 100644
--- a/src/test/resources/C00000/EPUB/C00000-04-chapter.xhtml
+++ b/src/test/resources/C00000/EPUB/C00000-04-chapter.xhtml
@@ -2,7 +2,7 @@
 <?xml-model href="http://www.daisy.org/pipeline/modules/nordic/nordic-html5.rng"?>
 <?xml-model href="http://www.daisy.org/pipeline/modules/nordic/nordic2015-1.sch"?>
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops" xml:lang="en" lang="en" epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#"
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops" xml:lang="en" lang="en" epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/# a11y: http://www.idpf.org/epub/vocab/package/a11y/# schema: http://schema.org/"
     xmlns:nordic="http://www.mtm.se/epub/">
     <head>
         <meta charset="UTF-8" />
diff --git a/src/test/resources/DTBook/C00000.xml b/src/test/resources/DTBook/C00000.xml
index 01c69792..cf680f5b 100644
--- a/src/test/resources/DTBook/C00000.xml
+++ b/src/test/resources/DTBook/C00000.xml
@@ -3,7 +3,7 @@
 <?xml-model href="http://www.daisy.org/pipeline/modules/nordic/mtm2015-1.sch"?>
 <!DOCTYPE dtbook
   PUBLIC "-//NISO//DTD dtbook 2005-3//EN" "http://www.daisy.org/z3986/2005/dtbook-2005-3.dtd">
-<dtbook xmlns="http://www.daisy.org/z3986/2005/dtbook/" version="2005-3" xml:lang="en">
+<dtbook xmlns="http://www.daisy.org/z3986/2005/dtbook/" version="2005-3" xml:lang="en" xmlns:schema="http://schema.org/">
     <head>
         <meta name="dtb:uid" content="C00000"/>
         <meta name="dc:Title" content="Valentin Haüy - the father of the education for the blind"/>
diff --git a/src/test/resources/single-html/C00000.xhtml b/src/test/resources/single-html/C00000.xhtml
index c2b5b800..93e7bf72 100644
--- a/src/test/resources/single-html/C00000.xhtml
+++ b/src/test/resources/single-html/C00000.xhtml
@@ -2,7 +2,7 @@
 <?xml-model href="http://www.daisy.org/pipeline/modules/nordic/nordic-html5.rng"?>
 <?xml-model href="http://www.daisy.org/pipeline/modules/nordic/nordic2015-1.sch"?>
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops" epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:lang="en" lang="en"
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops" epub:prefix="nordic: http://www.mtm.se/epub/ z3998: http://www.daisy.org/z3998/2012/vocab/structure/# a11y: http://www.idpf.org/epub/vocab/package/a11y/# schema: http://schema.org/" xml:lang="en" lang="en"
     xmlns:nordic="http://www.mtm.se/epub/">
     <head xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/">
         <meta charset="UTF-8" />
diff --git a/src/test/xprocspec/dtbook-to-epub3.xprocspec b/src/test/xprocspec/dtbook-to-epub3.xprocspec
index 25a14914..e2e97284 100644
--- a/src/test/xprocspec/dtbook-to-epub3.xprocspec
+++ b/src/test/xprocspec/dtbook-to-epub3.xprocspec
@@ -41,8 +41,6 @@
             label="There should be exactly four namespaces declared on the root element (the default namespace, nordic, epub and the implicit xml namespace)"/>
         <x:expect type="xpath" test="document(resolve-uri('output-dir/C00000/C00000.xhtml',$temp-dir))/*/namespace::*[name()='']" equals="'http://www.w3.org/1999/xhtml'"
             label="The HTML namespace should be the default namespace on the root element"/>
-        <x:expect type="xpath" test="document(resolve-uri('output-dir/C00000/C00000.xhtml',$temp-dir))/*/namespace::*[name()='nordic']" equals="'http://www.mtm.se/epub/'"
-            label="The Nordic EPUB namespace should be declared with prefix nordic on the root element"/>
         <x:expect type="xpath" test="document(resolve-uri('output-dir/C00000/C00000.xhtml',$temp-dir))/*/namespace::*[name()='epub']" equals="'http://www.idpf.org/2007/ops'"
             label="The EPUB namespace should be declared with the prefix epub on the root element"/>
         <x:expect type="xpath" test="document(resolve-uri('output-dir/C00000/C00000.xhtml',$temp-dir))/*//*/count(namespace::*[not(.=../../namespace::*)])" equals="0"
diff --git a/src/test/xspec/dtbook-to-epub3.xspec b/src/test/xspec/dtbook-to-epub3.xspec
index dfd21687..6b048368 100644
--- a/src/test/xspec/dtbook-to-epub3.xspec
+++ b/src/test/xspec/dtbook-to-epub3.xspec
@@ -80,7 +80,7 @@
             </dtbook:dtbook>
         </x:context>
         <x:expect label="should be allowed inside the dtbook element">
-            <html:html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#">
+            <html:html>
                 <html:head>...</html:head>
                 <html:body>...</html:body>
             </html:html>
@@ -92,8 +92,8 @@
         <x:context>
             <dtbook:dtbook version="2005-3"/>
         </x:context>
-        <x:expect label="the dtbook element should be converted into a html element, and the only attribute should be the default epub:prefix attribute">
-            <html:html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#">...</html:html>
+        <x:expect label="the dtbook element should be converted into a html element">
+            <html:html>...</html:html>
         </x:expect>
     </x:scenario>
 
@@ -4274,5 +4274,12 @@
             </html:dl>
         </x:expect>
     </x:scenario>
+    
+    <x:scenario label="discard dtb:*-metadata">
+        <x:context>
+            <dtbook:meta name="dtb:uid"/>
+        </x:context>
+        <x:expect label="inserting a dd will avoid epubcheck error RSC-005"/>
+    </x:scenario>
 
 </x:description>
diff --git a/src/test/xspec/navdoc-to-outline.xspec b/src/test/xspec/navdoc-to-outline.xspec
index 4e578cb1..2234d661 100644
--- a/src/test/xspec/navdoc-to-outline.xspec
+++ b/src/test/xspec/navdoc-to-outline.xspec
@@ -4,8 +4,7 @@
     <x:scenario label="A full navigation document">
         <x:context href="context/navdoc-to-outline.navdoc.xhtml"/>
         <x:expect label="An outline of the single-page HTML document">
-            <html xmlns="http://www.w3.org/1999/xhtml" xml:base="file:/tmp/" xmlns:epub="http://www.idpf.org/2007/ops" epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#"
-                xmlns:nordic="http://www.mtm.se/epub/">
+            <html xmlns="http://www.w3.org/1999/xhtml" xml:base="file:/tmp/" xmlns:epub="http://www.idpf.org/2007/ops">
                 <head/>
                 <body>
                     <section xml:base="chapter1.xhtml"/>
@@ -23,8 +22,7 @@
     <x:scenario label="A navigation document where not all spine documents are referenced from the toc">
         <x:context href="context/navdoc-to-outline.navdoc-with-opf.xhtml"/>
         <x:expect label="An outline of the single-page HTML document">
-            <html xmlns="http://www.w3.org/1999/xhtml" xml:base="file:/tmp/" xmlns:epub="http://www.idpf.org/2007/ops" epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#"
-                xmlns:nordic="http://www.mtm.se/epub/">
+            <html xmlns="http://www.w3.org/1999/xhtml" xml:base="file:/tmp/" xmlns:epub="http://www.idpf.org/2007/ops">
                 <head/>
                 <body>
                     <section xml:base="C00000-01-cover.xhtml"/>
diff --git a/src/test/xspec/opf-to-html-metadata.xspec b/src/test/xspec/opf-to-html-metadata.xspec
index 7695e25b..8aec6334 100644
--- a/src/test/xspec/opf-to-html-metadata.xspec
+++ b/src/test/xspec/opf-to-html-metadata.xspec
@@ -1,12 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<x:description xmlns:x="http://www.jenitennison.com/xslt/xspec" stylesheet="../../main/resources/xml/xslt/opf-to-html-metadata.xsl">
+<x:description xmlns:x="http://www.jenitennison.com/xslt/xspec"
+               xmlns:epub="http://www.idpf.org/2007/ops"
+               stylesheet="../../main/resources/xml/xslt/opf-to-html-metadata.xsl">
 
     <x:param name="modified" select="'2013-11-13T14:16:00Z'"/>
 
     <x:scenario label="A full package document">
         <x:context href="context/package.opf"/>
         <x:expect label="HTML head element with metadata" xml:space="preserve">
-<head xmlns="http://www.w3.org/1999/xhtml" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/">
+<head xmlns="http://www.w3.org/1999/xhtml" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" epub:prefix="nordic: http://www.mtm.se/epub/">
     <meta charset="UTF-8"/>
     <title>Valentin Haüy - the father of the education for the blind</title>
     <meta name="dc:identifier" content="C00000"/>
diff --git a/src/test/xspec/replace-sections-with-documents.xspec b/src/test/xspec/replace-sections-with-documents.xspec
index 3212d371..902eda6a 100644
--- a/src/test/xspec/replace-sections-with-documents.xspec
+++ b/src/test/xspec/replace-sections-with-documents.xspec
@@ -5,8 +5,7 @@
     <x:scenario label="when processing a HTML fileset with all kinds of document types and hierarchies">
         <x:context>
             <wrapper>
-                <html xml:base="file:/tmp/C00000.xhtml" xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops"
-                    epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xmlns:nordic="http://www.mtm.se/epub/">
+                <html xml:base="file:/tmp/C00000.xhtml" xmlns="http://www.w3.org/1999/xhtml">
                     <head/>
                     <body>
                         <section xml:base="file:/tmp/C00000-01-cover.xhtml"/>
@@ -45,7 +44,7 @@
                         <section xml:base="file:/tmp/C00000-25-footnotes.xhtml"/>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-01-cover.xhtml">
+                <html xml:base="file:/tmp/C00000-01-cover.xhtml">
                     <head>
                         <title>cover</title>
                         <link rel="next" href="C00000-01-cover.xhtml"/>
@@ -55,7 +54,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-02-introduction.xhtml">
+                <html xml:base="file:/tmp/C00000-02-introduction.xhtml">
                     <head>
                         <title>introduction</title>
                         <link rel="next" href="C00000-02-introduction.xhtml"/>
@@ -65,7 +64,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-03-rearnotes.xhtml">
+                <html xml:base="file:/tmp/C00000-03-rearnotes.xhtml">
                     <head>
                         <title>rearnotes</title>
                         <link rel="next" href="C00000-03-rearnotes.xhtml"/>
@@ -75,7 +74,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-04-chapter.xhtml">
+                <html xml:base="file:/tmp/C00000-04-chapter.xhtml">
                     <head>
                         <title>chapter</title>
                         <link rel="next" href="C00000-04-chapter.xhtml"/>
@@ -85,7 +84,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-05-part.xhtml">
+                <html xml:base="file:/tmp/C00000-05-part.xhtml">
                     <head>
                         <title>part</title>
                         <link rel="next" href="C00000-05-part.xhtml"/>
@@ -95,7 +94,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-06-rearnotes.xhtml">
+                <html xml:base="file:/tmp/C00000-06-rearnotes.xhtml">
                     <head>
                         <title>rearnotes</title>
                         <link rel="next" href="C00000-06-rearnotes.xhtml"/>
@@ -105,7 +104,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-07-introduction.xhtml">
+                <html xml:base="file:/tmp/C00000-07-introduction.xhtml">
                     <head>
                         <title>introduction</title>
                         <link rel="next" href="C00000-07-introduction.xhtml"/>
@@ -115,7 +114,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-08-rearnotes.xhtml">
+                <html xml:base="file:/tmp/C00000-08-rearnotes.xhtml">
                     <head>
                         <title>rearnotes</title>
                         <link rel="next" href="C00000-08-rearnotes.xhtml"/>
@@ -125,7 +124,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-09-chapter.xhtml">
+                <html xml:base="file:/tmp/C00000-09-chapter.xhtml">
                     <head>
                         <title>chapter</title>
                         <link rel="next" href="C00000-09-chapter.xhtml"/>
@@ -135,9 +134,10 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-10-rearnotes.xhtml">
+                <html xml:base="file:/tmp/C00000-10-rearnotes.xhtml">
                     <head>
                         <title>rearnotes</title>
+                        <meta name="nordic:foo"/>
                         <link rel="next" href="C00000-10-rearnotes.xhtml"/>
                     </head>
                     <body epub:type="bodymatter rearnotes">
@@ -145,7 +145,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-11-part.xhtml">
+                <html xml:base="file:/tmp/C00000-11-part.xhtml">
                     <head>
                         <title>part</title>
                         <link rel="next" href="C00000-11-part.xhtml"/>
@@ -155,7 +155,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-12-chapter.xhtml">
+                <html xml:base="file:/tmp/C00000-12-chapter.xhtml">
                     <head>
                         <title>chapter</title>
                         <link rel="next" href="C00000-12-chapter.xhtml"/>
@@ -165,7 +165,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-13-part.xhtml">
+                <html xml:base="file:/tmp/C00000-13-part.xhtml">
                     <head>
                         <title>part</title>
                         <link rel="next" href="C00000-13-part.xhtml"/>
@@ -175,7 +175,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-14-chapter.xhtml">
+                <html xml:base="file:/tmp/C00000-14-chapter.xhtml">
                     <head>
                         <title>chapter</title>
                         <link rel="next" href="C00000-14-chapter.xhtml"/>
@@ -185,7 +185,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-15-chapter.xhtml">
+                <html xml:base="file:/tmp/C00000-15-chapter.xhtml">
                     <head>
                         <title>chapter</title>
                         <link rel="next" href="C00000-15-chapter.xhtml"/>
@@ -195,7 +195,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-16-rearnotes.xhtml">
+                <html xml:base="file:/tmp/C00000-16-rearnotes.xhtml">
                     <head>
                         <title>rearnotes</title>
                         <link rel="next" href="C00000-16-rearnotes.xhtml"/>
@@ -205,7 +205,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-17-chapter.xhtml">
+                <html xml:base="file:/tmp/C00000-17-chapter.xhtml">
                     <head>
                         <title>chapter</title>
                         <link rel="next" href="C00000-17-chapter.xhtml"/>
@@ -215,7 +215,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-18-part.xhtml">
+                <html xml:base="file:/tmp/C00000-18-part.xhtml">
                     <head>
                         <title>part</title>
                         <link rel="next" href="C00000-18-part.xhtml"/>
@@ -225,7 +225,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-19-part.xhtml">
+                <html xml:base="file:/tmp/C00000-19-part.xhtml">
                     <head>
                         <title>part</title>
                         <link rel="next" href="C00000-19-part.xhtml"/>
@@ -235,7 +235,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-20-chapter.xhtml">
+                <html xml:base="file:/tmp/C00000-20-chapter.xhtml">
                     <head>
                         <title>chapter</title>
                         <link rel="next" href="C00000-20-chapter.xhtml"/>
@@ -245,7 +245,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-21-rearnotes.xhtml">
+                <html xml:base="file:/tmp/C00000-21-rearnotes.xhtml">
                     <head>
                         <title>rearnotes</title>
                         <link rel="next" href="C00000-21-rearnotes.xhtml"/>
@@ -255,7 +255,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-22-chapter.xhtml">
+                <html xml:base="file:/tmp/C00000-22-chapter.xhtml">
                     <head>
                         <title>chapter</title>
                         <link rel="next" href="C00000-22-chapter.xhtml"/>
@@ -265,7 +265,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-23-index.xhtml">
+                <html xml:base="file:/tmp/C00000-23-index.xhtml">
                     <head>
                         <title>index</title>
                         <link rel="next" href="C00000-23-index.xhtml"/>
@@ -275,7 +275,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-24-rearnotes.xhtml">
+                <html xml:base="file:/tmp/C00000-24-rearnotes.xhtml">
                     <head>
                         <title>rearnotes</title>
                         <link rel="next" href="C00000-24-rearnotes.xhtml"/>
@@ -285,7 +285,7 @@
                         <p>lorem ipsum</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/C00000-25-footnotes.xhtml">
+                <html xml:base="file:/tmp/C00000-25-footnotes.xhtml">
                     <head>
                         <title>footnotes</title>
                         <link rel="next" href="C00000-25-footnotes.xhtml"/>
@@ -298,8 +298,7 @@
             </wrapper>
         </x:context>
         <x:expect label="each section should be split into its own HTML document, with a filename reflecting the type of its contents">
-            <html xml:base="file:/tmp/C00000.xhtml" xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops"
-                epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xmlns:nordic="http://www.mtm.se/epub/">
+            <html xmlns="http://www.w3.org/1999/xhtml" epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/C00000.xhtml">
                 <head/>
                 <body>
                     <section epub:type="cover" xml:base="file:/tmp/C00000-01-cover.xhtml">
diff --git a/src/test/xspec/split-html.xspec b/src/test/xspec/split-html.xspec
index 5cd3e755..c3a7a7d6 100644
--- a/src/test/xspec/split-html.xspec
+++ b/src/test/xspec/split-html.xspec
@@ -1,12 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<x:description xmlns:x="http://www.jenitennison.com/xslt/xspec" stylesheet="../../main/resources/xml/xslt/split-html.xsl" xmlns:epub="http://www.idpf.org/2007/ops" xmlns="http://www.w3.org/1999/xhtml"
-    xslt-version="2.0">
-
+<x:description xmlns:x="http://www.jenitennison.com/xslt/xspec"
+               xmlns:epub="http://www.idpf.org/2007/ops"
+               xmlns="http://www.w3.org/1999/xhtml"
+               stylesheet="../../main/resources/xml/xslt/split-html.xsl"
+               xslt-version="2.0">
+    
     <x:scenario label="when processing a HTML document with all kinds of sections">
         <x:context>
-            <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/content.xhtml">
+            <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/content.xhtml">
                 <head>
                     <title>Single-page title</title>
+                    <meta name="nordic:guidelines" value="2015-1"/>
                 </head>
                 <body>
                     <section epub:type="cover" xml:base="file:/tmp/cover.xhtml">
@@ -16,6 +20,7 @@
                     <section epub:type="titlepage" xml:base="file:/tmp/titlepage.xhtml">
                         <h1>titlepage</h1>
                         <p>titlepagetitlepagetitlepage</p>
+                        <p epub:type="z3998:author">author</p>
                     </section>
                     <section epub:type="colophon" xml:base="file:/tmp/colophon.xhtml">
                         <h1>colophon</h1>
@@ -78,9 +83,10 @@
         </x:context>
         <x:expect label="each section should be split into its own HTML document, with a filename reflecting the type of its contents">
             <wrapper xml:base="file:/tmp/content.xhtml">
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/cover.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/cover.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="next" href="titlepage.xhtml"/>
                     </head>
                     <body epub:type="cover">
@@ -88,20 +94,23 @@
                         <p>covercovercover</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/titlepage.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/ z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/titlepage.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="cover.xhtml"/>
                         <link rel="next" href="colophon.xhtml"/>
                     </head>
                     <body epub:type="titlepage">
                         <h1>titlepage</h1>
                         <p>titlepagetitlepagetitlepage</p>
+                        <p epub:type="z3998:author">author</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/colophon.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/colophon.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="titlepage.xhtml"/>
                         <link rel="next" href="toc.xhtml"/>
                     </head>
@@ -110,9 +119,10 @@
                         <p>colophoncolophoncolophon</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/toc.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/toc.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="colophon.xhtml"/>
                         <link rel="next" href="part1.xhtml"/>
                     </head>
@@ -121,9 +131,10 @@
                         <p>toctoctoc</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/part1.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/part1.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="toc.xhtml"/>
                         <link rel="next" href="chapter1.xhtml"/>
                     </head>
@@ -132,9 +143,10 @@
                         <p>partpartpart</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/chapter1.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/chapter1.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="part1.xhtml"/>
                         <link rel="next" href="chapter2.xhtml"/>
                     </head>
@@ -143,9 +155,10 @@
                         <p>chapterchapterchapter</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/chapter2.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/chapter2.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="chapter1.xhtml"/>
                         <link rel="next" href="part2.xhtml"/>
                     </head>
@@ -154,9 +167,10 @@
                         <p>chapterchapterchapter</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/part2.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/part2.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="chapter2.xhtml"/>
                         <link rel="next" href="chapter3.xhtml"/>
                     </head>
@@ -165,9 +179,10 @@
                         <p>partpartpart</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/chapter3.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/chapter3.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="part2.xhtml"/>
                         <link rel="next" href="chapter4.xhtml"/>
                     </head>
@@ -176,9 +191,10 @@
                         <p>chapterchapterchapter</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/chapter4.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/chapter4.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="chapter3.xhtml"/>
                         <link rel="next" href="index.xhtml"/>
                     </head>
@@ -187,9 +203,10 @@
                         <p>chapterchapterchapter</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/index.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/index.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="chapter4.xhtml"/>
                         <link rel="next" href="appendix1.xhtml"/>
                     </head>
@@ -198,9 +215,10 @@
                         <p>indexindexindex</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/appendix1.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/appendix1.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="index.xhtml"/>
                         <link rel="next" href="appendix2.xhtml"/>
                     </head>
@@ -209,9 +227,10 @@
                         <p>appendixappendixappendix</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/appendix2.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/appendix2.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="appendix1.xhtml"/>
                         <link rel="next" href="glossary.xhtml"/>
                     </head>
@@ -220,9 +239,10 @@
                         <p>appendixappendixappendix</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/glossary.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/glossary.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="appendix2.xhtml"/>
                         <link rel="next" href="footnotes.xhtml"/>
                     </head>
@@ -231,9 +251,10 @@
                         <p>glossaryglossaryglossary</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/footnotes.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/footnotes.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="glossary.xhtml"/>
                         <link rel="next" href="rearnotes.xhtml"/>
                     </head>
@@ -242,9 +263,10 @@
                         <p>footnotesfootnotesfootnotes</p>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/rearnotes.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/rearnotes.xhtml">
                     <head>
                         <title>Single-page title</title>
+                        <meta name="nordic:guidelines" value="2015-1"/>
                         <link rel="prev" href="footnotes.xhtml"/>
                     </head>
                     <body epub:type="rearnotes">
@@ -258,7 +280,7 @@
 
     <x:scenario label="when processing a HTML document with all kinds of sections">
         <x:context>
-            <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/content.xhtml">
+            <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/content.xhtml">
                 <head>
                     <title>Single-page title</title>
                 </head>
@@ -283,7 +305,7 @@
         </x:context>
         <x:expect label="each section should be split into its own HTML document, with a filename reflecting the type of its contents">
             <wrapper xml:base="file:/tmp/content.xhtml">
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/chapter1.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/chapter1.xhtml">
                     <head>
                         <title>Single-page title</title>
                         <link rel="next" href="chapter2.xhtml"/>
@@ -300,7 +322,7 @@
                         </ul>
                     </body>
                 </html>
-                <html epub:prefix="z3998: http://www.daisy.org/z3998/2012/vocab/structure/#" xml:base="file:/tmp/chapter2.xhtml">
+                <html epub:prefix="nordic: http://www.mtm.se/epub/" xml:base="file:/tmp/chapter2.xhtml">
                     <head>
                         <title>Single-page title</title>
                         <link rel="prev" href="chapter1.xhtml"/>
diff --git a/src/test/xspec/update-epub-prefixes.xspec b/src/test/xspec/update-epub-prefixes.xspec
new file mode 100644
index 00000000..789dc465
--- /dev/null
+++ b/src/test/xspec/update-epub-prefixes.xspec
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<x:description xmlns:x="http://www.jenitennison.com/xslt/xspec"
+               xmlns:f="http://www.daisy.org/ns/pipeline/internal-functions"
+               xmlns:epub="http://www.idpf.org/2007/ops"
+               xmlns:dtbook="http://www.daisy.org/z3986/2005/dtbook/"
+               xmlns="http://www.w3.org/1999/xhtml"
+               stylesheet="../../main/resources/xml/xslt/update-epub-prefixes.xsl"
+               xslt-version="2.0">
+    
+    <x:scenario label="add prefixes as necessary">
+        <x:context>
+            <html xmlns:schema="http://schema.org/">
+                <head>
+                    <meta name="schema:isbn" content=""/>
+                    <meta name="nordic:guidelines" content="2015-1"/>
+                    <meta name="dcterms:modified" content="2018-09-12T10:24:30Z"/>
+                </head>
+                <body>
+                    <h1 epub:type="prism:title"/>
+                </body>
+            </html>
+        </x:context>
+        <x:expect label="the prefixes should be calculated as expected">
+            <html epub:prefix="nordic: http://www.mtm.se/epub/ schema: http://schema.org/ prism: http://www.prismstandard.org/specifications/3.0/PRISM_CV_Spec_3.0.htm#">
+                <head>
+                    <meta name="schema:isbn" content=""/>
+                    <meta name="nordic:guidelines" content="2015-1"/>
+                    <meta name="dcterms:modified" content="2018-09-12T10:24:30Z"/>
+                </head>
+                <body>
+                    <h1 epub:type="prism:title"/>
+                </body>
+            </html>
+        </x:expect>
+    </x:scenario>
+    
+    <x:scenario label="look for namespaces in existing epub:prefix attribute">
+        <x:context>
+            <html epub:prefix="schema: http://schema.org/">
+                <head>
+                    <meta name="schema:isbn" content=""/>
+                </head>
+                <body/>
+            </html>
+        </x:context>
+        <x:expect label="the prefixes should be calculated as expected">
+            <html epub:prefix="nordic: http://www.mtm.se/epub/ schema: http://schema.org/">
+                <head>
+                    <meta name="schema:isbn" content=""/>
+                </head>
+                <body/>
+            </html>
+        </x:expect>
+    </x:scenario>
+    
+    <x:scenario label="handle DTBook metadata">
+        <x:call function="f:prefixes">
+            <x:param name="head" as="element()">
+                <dtbook:head xmlns:schema="http://schema.org/">
+                    <dtbook:meta name="schema:isbn" content=""/>
+                    <dtbook:meta name="nordic:guidelines" content="2015-1"/>
+                    <dtbook:meta name="dcterms:modified" content="2018-09-12T10:24:30Z"/>
+                </dtbook:head>
+            </x:param>
+            <x:param name="body"/>
+            <x:param name="other"/>
+        </x:call>
+        <x:expect label="the prefixes should be calculated as expected"
+            select="('schema: http://schema.org/', 'nordic: http://www.mtm.se/epub/')"/>
+    </x:scenario>
+    
+</x:description>