diff --git a/scripts/foundry/DeployL1SystemConfig.s.sol b/scripts/foundry/DeployL1SystemConfig.s.sol
new file mode 100644
index 00000000..21f96d69
--- /dev/null
+++ b/scripts/foundry/DeployL1SystemConfig.s.sol
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity =0.8.24;
+
+import {Script} from "forge-std/Script.sol";
+import {SystemConfig} from "../../src/L1/system-contract/SystemConfig.sol"; // adjust the relative path as necessary
+import {console} from "forge-std/console.sol";
+
+contract DeployL1SystemConfig is Script {
+    function run() external {
+        // Retrieve the deployer private key from environment variables
+        uint256 deployerKey = vm.envUint("L1_DEPLOYER_PRIVATE_KEY");
+        // Read the intended owner from an environment variable (for example, L1_SCROLL_OWNER_ADDR)
+        address ownerAddr = vm.envAddress("L1_SCROLL_OWNER_ADDR");
+        
+        vm.startBroadcast(deployerKey);
+
+        // Deploy the SystemConfig contract with the specified owner.
+        SystemConfig sysConfig = new SystemConfig(ownerAddr);
+        
+        console.log("Deployed SystemConfig at address:", address(sysConfig));
+
+        vm.stopBroadcast();
+    }
+}
\ No newline at end of file
diff --git a/scripts/foundry/InitializeL1ScrollOwner.s.sol b/scripts/foundry/InitializeL1ScrollOwner.s.sol
index b2af8e9d..2f060477 100644
--- a/scripts/foundry/InitializeL1ScrollOwner.s.sol
+++ b/scripts/foundry/InitializeL1ScrollOwner.s.sol
@@ -21,6 +21,7 @@ import {ScrollChain} from "../../src/L1/rollup/ScrollChain.sol";
 import {ScrollOwner} from "../../src/misc/ScrollOwner.sol";
 import {Whitelist} from "../../src/L2/predeploys/Whitelist.sol";
 
+
 // solhint-disable max-states-count
 // solhint-disable state-visibility
 // solhint-disable var-name-mixedcase
@@ -63,6 +64,9 @@ contract InitializeL1ScrollOwner is Script {
     address L1_ENFORCED_TX_GATEWAY_PROXY_ADDR = vm.envAddress("L1_ENFORCED_TX_GATEWAY_PROXY_ADDR");
     address L1_WHITELIST_ADDR = vm.envAddress("L1_WHITELIST_ADDR");
 
+    address SYSTEM_CONTRACT_ADDR = vm.envAddress("SYSTEM_CONTRACT_ADDR");
+
+
     ScrollOwner owner;
 
     function run() external {
@@ -81,8 +85,8 @@ contract InitializeL1ScrollOwner is Script {
         configL1GatewayRouter();
         configL1CustomERC20Gateway();
         configL1ERC721Gateway();
-        configL1ERC1155Gateway();
-
+        configL1ERC1155Gateway();        
+    
         configL1USDCGateway();
         configEnforcedTxGateway();
 
diff --git a/scripts/foundry/InitializeL1SystemConfig.sol b/scripts/foundry/InitializeL1SystemConfig.sol
new file mode 100644
index 00000000..c6e9c121
--- /dev/null
+++ b/scripts/foundry/InitializeL1SystemConfig.sol
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity =0.8.24;
+
+import { Script } from "forge-std/Script.sol";
+import { SystemConfig } from "../../src/L1/system-contract/SystemConfig.sol";
+import { ScrollOwner } from "../../src/misc/ScrollOwner.sol"; // Adjust this path as needed
+
+/**
+ * @title InitializeL1SystemConfig
+ * @notice Configures the deployed SystemConfig contract.
+ *         This script grants the Security Council (as defined by L1_SECURITY_COUNCIL_ADDR)
+ *         access to call updateSigner() on the SystemConfig contract with no delay.
+ */
+contract InitializeL1SystemConfig is Script {
+    function run() external {
+        // Retrieve required environment variables.
+        uint256 deployerKey = vm.envUint("L1_DEPLOYER_PRIVATE_KEY");
+        address systemConfigAddr = vm.envAddress("SYSTEM_CONTRACT_ADDR");
+        address securityCouncilAddr = vm.envAddress("L1_SECURITY_COUNCIL_ADDR");
+        address scrollOwnerAddr = vm.envAddress("L1_SCROLL_OWNER_ADDR");
+        
+        // Compute the role hash for the Security Council with no delay.
+        bytes32 SECURITY_COUNCIL_NO_DELAY_ROLE = keccak256("SECURITY_COUNCIL_NO_DELAY_ROLE");
+
+        vm.startBroadcast(deployerKey);
+
+        // Instantiate the ScrollOwner contract instance which manages access control.
+        ScrollOwner owner = ScrollOwner(payable(scrollOwnerAddr));
+        // Instantiate the already-deployed SystemConfig contract.
+        SystemConfig sys = SystemConfig(systemConfigAddr);
+
+        // Prepare a single-element array containing the function selector for updateSigner.
+        bytes4[] memory selectors = new bytes4[](1);
+        selectors[0] = sys.updateSigner.selector;
+
+        // Grant the SECURITY_COUNCIL_NO_DELAY_ROLE permission on SystemConfig,
+        // so that the Security Council address can call updateSigner() with no delay.
+        owner.updateAccess(
+            systemConfigAddr,           // Address of the SystemConfig contract.
+            selectors,                  // The function selectors (only updateSigner here).
+            SECURITY_COUNCIL_NO_DELAY_ROLE,
+            true                        // Grant access.
+        );
+
+        vm.stopBroadcast();
+    }
+}
\ No newline at end of file
diff --git a/src/L1/L1ScrollMessenger.sol b/src/L1/L1ScrollMessenger.sol
index c70719ff..fd37ecf9 100644
--- a/src/L1/L1ScrollMessenger.sol
+++ b/src/L1/L1ScrollMessenger.sol
@@ -1,5 +1,4 @@
 // SPDX-License-Identifier: MIT
-
 pragma solidity =0.8.24;
 
 import {IScrollChain} from "./rollup/IScrollChain.sol";
@@ -10,6 +9,7 @@ import {IScrollMessenger} from "../libraries/IScrollMessenger.sol";
 import {ScrollMessengerBase} from "../libraries/ScrollMessengerBase.sol";
 import {WithdrawTrieVerifier} from "../libraries/verifier/WithdrawTrieVerifier.sol";
 
+
 import {IMessageDropCallback} from "../libraries/callbacks/IMessageDropCallback.sol";
 
 // solhint-disable avoid-low-level-calls
diff --git a/src/L1/system-contract/SystemConfig.sol b/src/L1/system-contract/SystemConfig.sol
new file mode 100644
index 00000000..a1d995bb
--- /dev/null
+++ b/src/L1/system-contract/SystemConfig.sol
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: MIT
+pragma solidity =0.8.24;
+
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+contract SystemConfig is Ownable {
+
+    address public currentSigner;
+
+    constructor(address _owner) {
+        _transferOwnership(_owner);
+    }
+
+    /**
+     * @dev Update the current signer.
+     *      Only the owner can call this function.
+     * @param _newSigner The address of the new authorized signer.
+     */
+    function updateSigner(address _newSigner) external onlyOwner {
+        currentSigner = _newSigner;
+    }
+
+    /**
+     * @dev Return the current authorized signer.
+     * @return The authorized signer address.
+     */
+    function getSigner() external view returns (address) {
+        return currentSigner;
+    }
+}
\ No newline at end of file