diff --git a/src/gov-action-contracts/address-registries/L1AddressRegistry.sol b/src/gov-action-contracts/address-registries/L1AddressRegistry.sol
index 053a22a3..e424b201 100644
--- a/src/gov-action-contracts/address-registries/L1AddressRegistry.sol
+++ b/src/gov-action-contracts/address-registries/L1AddressRegistry.sol
@@ -8,17 +8,23 @@ contract L1AddressRegistry is IL1AddressRegistry {
     IL1Timelock public immutable l1Timelock;
     IL1CustomGateway public immutable customGateway;
     IL1GatewayRouter public immutable gatewayRouter;
+    address[] public outboxes;
+    address[] public sequencers;
 
     constructor(
         IInbox _inbox,
         IL1Timelock _l1Timelock,
         IL1CustomGateway _customGateway,
-        IL1GatewayRouter _gatewayRouter
+        IL1GatewayRouter _gatewayRouter,
+        address[] memory _outboxes,
+        address[] memory _sequencers
     ) {
         inbox = _inbox;
         l1Timelock = _l1Timelock;
         customGateway = _customGateway;
         gatewayRouter = _gatewayRouter;
+        outboxes = _outboxes;
+        sequencers = _sequencers;
     }
 
     function rollup() public view returns (IRollupCore) {
@@ -32,4 +38,12 @@ contract L1AddressRegistry is IL1AddressRegistry {
     function sequencerInbox() public view returns (ISequencerInbox) {
         return inbox.sequencerInbox();
     }
+
+    function getOutboxes() public view returns (address[] memory) {
+        return outboxes;
+    }
+
+    function getSequencers() public view returns (address[] memory) {
+        return sequencers;
+    }
 }
diff --git a/src/gov-action-contracts/address-registries/interfaces.sol b/src/gov-action-contracts/address-registries/interfaces.sol
index 9a713356..4e222fba 100644
--- a/src/gov-action-contracts/address-registries/interfaces.sol
+++ b/src/gov-action-contracts/address-registries/interfaces.sol
@@ -77,4 +77,7 @@ interface IL1AddressRegistry is
     IL1TimelockGetter,
     IL1GatewayRouterGetter,
     IL1CustomGatewayGetter
-{}
+{
+    function getSequencers() external view returns (address[] memory);
+    function getOutboxes() external view returns (address[] memory);
+}
diff --git a/src/gov-action-contracts/pause-all/PauseAllAction.sol b/src/gov-action-contracts/pause-all/PauseAllAction.sol
new file mode 100644
index 00000000..1fc10ccb
--- /dev/null
+++ b/src/gov-action-contracts/pause-all/PauseAllAction.sol
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: Apache-2.0
+pragma solidity 0.8.16;
+
+import "../address-registries/interfaces.sol";
+import "../set-outbox/OutboxActionLib.sol";
+import "../sequencer/SequencerActionLib.sol";
+
+/// @notice pause inbox and rollup, remove all outboxes and sequencers
+contract PauseAllAction {
+    IL1AddressRegistry public immutable addressRegistry;
+
+    constructor(IL1AddressRegistry _addressRegistry) {
+        addressRegistry = _addressRegistry;
+    }
+
+    function perform() external {
+        addressRegistry.inbox().pause();
+        addressRegistry.rollup().pause();
+        OutboxActionLib.bridgeRemoveAllOutboxes(addressRegistry);
+        address[] memory sequencersToRemove = addressRegistry.getSequencers();
+        for (uint256 i = 0; i < sequencersToRemove.length; i++) {
+            SequencerActionLib.removeSequencer(addressRegistry, sequencersToRemove[i]);
+        }
+    }
+}
diff --git a/src/gov-action-contracts/pause-all/UnpauseAllAction.sol b/src/gov-action-contracts/pause-all/UnpauseAllAction.sol
new file mode 100644
index 00000000..ba417dd3
--- /dev/null
+++ b/src/gov-action-contracts/pause-all/UnpauseAllAction.sol
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: Apache-2.0
+pragma solidity 0.8.16;
+
+import "../address-registries/interfaces.sol";
+import "../set-outbox/OutboxActionLib.sol";
+import "../sequencer/SequencerActionLib.sol";
+
+/// @notice unpause inbox and rollup, add outboxes and sequencers (i.e., undoes PauseAllAction)
+contract UnPauseAllAction {
+    IL1AddressRegistry public immutable addressRegistry;
+
+    constructor(IL1AddressRegistry _addressRegistry) {
+        addressRegistry = _addressRegistry;
+    }
+
+    function perform() external {
+        addressRegistry.inbox().unpause();
+        addressRegistry.rollup().resume();
+        OutboxActionLib.bridgeAddOutboxes(addressRegistry, addressRegistry.getOutboxes());
+        address[] memory sequencersToAdd = addressRegistry.getSequencers();
+        for (uint256 i = 0; i < sequencersToAdd.length; i++) {
+            SequencerActionLib.addSequencer(addressRegistry, sequencersToAdd[i]);
+        }
+    }
+}
diff --git a/src/gov-action-contracts/set-outbox/OutboxActionLib.sol b/src/gov-action-contracts/set-outbox/OutboxActionLib.sol
index ee7f57da..2e356e52 100644
--- a/src/gov-action-contracts/set-outbox/OutboxActionLib.sol
+++ b/src/gov-action-contracts/set-outbox/OutboxActionLib.sol
@@ -6,9 +6,7 @@ import "@openzeppelin/contracts/utils/Address.sol";
 import "@arbitrum/nitro-contracts/src/bridge/IOutbox.sol";
 
 library OutboxActionLib {
-    function bridgeAddOutboxes(IBridgeGetter addressRegistry, address[] calldata outboxes)
-        internal
-    {
+    function bridgeAddOutboxes(IBridgeGetter addressRegistry, address[] memory outboxes) internal {
         IBridge bridge = addressRegistry.bridge();
         for (uint256 i = 0; i < outboxes.length; i++) {
             address outbox = outboxes[i];
@@ -20,7 +18,7 @@ library OutboxActionLib {
         }
     }
 
-    function bridgeRemoveOutboxes(IBridgeGetter addressRegistry, address[] calldata outboxes)
+    function bridgeRemoveOutboxes(IBridgeGetter addressRegistry, address[] memory outboxes)
         internal
     {
         IBridge bridge = addressRegistry.bridge();
diff --git a/test/util/ActionTestBase.sol b/test/util/ActionTestBase.sol
index 4cbb92b6..a3334631 100644
--- a/test/util/ActionTestBase.sol
+++ b/test/util/ActionTestBase.sol
@@ -86,9 +86,11 @@ abstract contract ActionTestBase {
         l1Timelock.grantRole(l1Timelock.TIMELOCK_ADMIN_ROLE(), address(ue));
         l1Timelock.revokeRole(l1Timelock.TIMELOCK_ADMIN_ROLE(), address(l1Timelock));
         l1Timelock.revokeRole(l1Timelock.TIMELOCK_ADMIN_ROLE(), address(this));
+        address[] memory outboxes = new address[](0);
+        address[] memory sequencers = new address[](0);
 
         addressRegistry =
-        new _ar.L1AddressRegistry(IInbox(address(inbox)), _ifaces.IL1Timelock(address(l1Timelock)), _ifaces.IL1CustomGateway(address(0)), _ifaces.IL1GatewayRouter(address(0)));
+        new _ar.L1AddressRegistry(IInbox(address(inbox)), _ifaces.IL1Timelock(address(l1Timelock)), _ifaces.IL1CustomGateway(address(0)), _ifaces.IL1GatewayRouter(address(0)), outboxes, sequencers);
         bridgeGetter = _ifaces.IBridgeGetter(address(addressRegistry));
         inboxGetter = _ifaces.IInboxGetter(address(addressRegistry));
         sequencerInboxGetter = _ifaces.ISequencerInboxGetter(address(addressRegistry));