diff --git a/contracts/SecurityTokenRegistrar.sol b/contracts/SecurityTokenRegistrar.sol
index 5d46bdd..f361bc7 100644
--- a/contracts/SecurityTokenRegistrar.sol
+++ b/contracts/SecurityTokenRegistrar.sol
@@ -8,18 +8,20 @@ pragma solidity ^0.4.18;
 import './interfaces/ISecurityTokenRegistrar.sol';
 import './interfaces/IERC20.sol';
 import './SecurityToken.sol';
+import './interfaces/INameSpaceRegistrar.sol';
 
 /**
  * @title SecurityTokenRegistrar
  * @dev Contract use to register the security token on Polymath platform
  */
-
 contract SecurityTokenRegistrar is ISecurityTokenRegistrar {
 
     string public VERSION = "2";
     IERC20 public PolyToken;                                        // Address of POLY token
     address public polyCustomersAddress;                            // Address of the polymath-core Customers contract address
     address public polyComplianceAddress;                           // Address of the polymath-core Compliance contract address
+    INameSpaceRegistrar public polyNameSpaceRegistrar;              // NameSpaceRegistrar contract pointer
+
 
     struct NameSpaceData {
       address owner;
@@ -49,15 +51,18 @@ contract SecurityTokenRegistrar is ISecurityTokenRegistrar {
     function SecurityTokenRegistrar(
       address _polyTokenAddress,
       address _polyCustomersAddress,
-      address _polyComplianceAddress
+      address _polyComplianceAddress,
+      address _polyNameSpaceRegistrarAddress
     ) public
     {
       require(_polyTokenAddress != address(0));
       require(_polyCustomersAddress != address(0));
       require(_polyComplianceAddress != address(0));
+      require(_polyNameSpaceRegistrarAddress != address(0));      
       PolyToken = IERC20(_polyTokenAddress);
       polyCustomersAddress = _polyCustomersAddress;
       polyComplianceAddress = _polyComplianceAddress;
+      polyNameSpaceRegistrar = INameSpaceRegistrar(_polyNameSpaceRegistrarAddress);
     }
 
     /**
@@ -128,7 +133,12 @@ contract SecurityTokenRegistrar is ISecurityTokenRegistrar {
       require(nameSpace.owner != address(0));
       require(_owner != address(0));
       require(bytes(_name).length > 0 && bytes(_ticker).length > 0);
+
+      var(, _tickerTimeStamp) = polyNameSpaceRegistrar.getDetails(_nameSpaceName, _ticker);     
+      require(_tickerTimeStamp + 90 days <= now);
+
       require(PolyToken.transferFrom(msg.sender, nameSpace.owner, nameSpace.fee));
+
       address newSecurityTokenAddress = new SecurityToken(
         _name,
         _ticker,
diff --git a/contracts/interfaces/INameSpaceRegistrar.sol b/contracts/interfaces/INameSpaceRegistrar.sol
new file mode 100644
index 0000000..16b5c79
--- /dev/null
+++ b/contracts/interfaces/INameSpaceRegistrar.sol
@@ -0,0 +1,12 @@
+pragma solidity ^0.4.18;
+
+
+interface INameSpaceRegistrar {
+
+    function changeAdmin(address _admin, bool _valid)  public;
+    function changeTokenOwner(string _nameSpace, string _symbol, address _newOwner) public;
+    function registerToken(string _nameSpace, string _symbol, string _description, string _contact, address _owner) public;
+    function getDetails(string _nameSpace, string _symbol) view public returns (address, uint256);
+    function getDescription(string _nameSpace, string _symbol) view public returns (string, string);
+
+}
\ No newline at end of file
diff --git a/migrations/1_deploy_contracts.js b/migrations/1_deploy_contracts.js
index aebc37a..f4c9c1b 100644
--- a/migrations/1_deploy_contracts.js
+++ b/migrations/1_deploy_contracts.js
@@ -13,8 +13,8 @@ module.exports = async (deployer, network) => {
   try{
     await deployer.deploy(Customers, PolyToken);
     await deployer.deploy(Compliance, Customers.address);
-    await deployer.deploy(SecurityTokenRegistrar, PolyToken, Customers.address, Compliance.address);
     await deployer.deploy(NameSpaceRegistrar);
+    await deployer.deploy(SecurityTokenRegistrar, PolyToken, Customers.address, Compliance.address, NameSpaceRegistrar.address);
     let compliance = await Compliance.deployed()
     await compliance.setRegistrarAddress(SecurityTokenRegistrar.address);
     console.log(`\nPolymath Network Smart Contracts Deployed:\n
diff --git a/test/SecurityToken.js b/test/SecurityToken.js
index ee0304d..7f5e95f 100644
--- a/test/SecurityToken.js
+++ b/test/SecurityToken.js
@@ -13,6 +13,7 @@ const Compliance = artifacts.require('Compliance.sol');
 const Registrar = artifacts.require('SecurityTokenRegistrar.sol');
 const SimpleCappedOfferingFactory = artifacts.require('SimpleCappedOfferingFactory.sol');
 const SimpleCappedOffering = artifacts.require('SimpleCappedOffering.sol');
+const NameSpaceRegistrar = artifacts.require('./NameSpaceRegistrar.sol');
 const BigNumber = web3.BigNumber;
 
 const ethers = require('ethers');
@@ -111,16 +112,19 @@ contract('SecurityToken', accounts => {
   let polyTokenRate = 100;
   let investedAmount;
   let POLY, customers, compliance, STRegistrar, securityToken;
-  let STAddress, templateAddress, offeringFactory, offeringFactory_2, offeringContract;
+  let STAddress, templateAddress, offeringFactory, offeringFactory_2, offeringContract, polyNameSpaceRegistrar;
 
     before(async()=>{
       POLY = await PolyToken.new();
       customers = await Customers.new(POLY.address);
       compliance = await Compliance.new(customers.address);
+      polyNameSpaceRegistrar = await NameSpaceRegistrar.new();
+      console.log("polyNameSpaceRegistrar " +  polyNameSpaceRegistrar.address);
       STRegistrar = await Registrar.new(
         POLY.address,
         customers.address,
-        compliance.address
+        compliance.address,
+        polyNameSpaceRegistrar.address
       );
       await compliance.setRegistrarAddress(STRegistrar.address);
       // Adding the new KYC provider in to the Polymath Platform chain data
diff --git a/test/SecurityTokenRegistrar.js b/test/SecurityTokenRegistrar.js
index 780c404..d1803ea 100644
--- a/test/SecurityTokenRegistrar.js
+++ b/test/SecurityTokenRegistrar.js
@@ -6,6 +6,7 @@ const SecurityToken = artifacts.require('./SecurityToken.sol');
 const POLY = artifacts.require('./helpers/mockContracts/PolyTokenMock.sol');
 const Compliance = artifacts.require('./Compliance.sol');
 const Customers = artifacts.require('./Customers.sol');
+const NameSpaceRegistrar = artifacts.require('./NameSpaceRegistrar.sol');
 
 
 contract('SecurityTokenRegistrar', accounts => {
@@ -32,18 +33,22 @@ contract('SecurityTokenRegistrar', accounts => {
   let acct2 = accounts[2];
   let issuer2 = accounts[3];
   let issuer1 = accounts[4];
-  let polyToken, polyCustomers, polyCompliance, STRegistrar;
+  let polyToken, polyCustomers, polyCompliance, STRegistrar, polyNameSpaceRegistrar;
 
   beforeEach(async () => {
        polyToken = await POLY.new();
        polyCustomers = await Customers.new(polyToken.address);
        polyCompliance = await Compliance.new(polyCustomers.address);
+       polyNameSpaceRegistrar = await NameSpaceRegistrar.new();
+       console.log("polyNameSpaceRegistrar " +  polyNameSpaceRegistrar.address);
       // Creation of the new SecurityTokenRegistrar contract
        STRegistrar = await SecurityTokenRegistrar.new(
         polyToken.address,
         polyCustomers.address,
-        polyCompliance.address
+        polyCompliance.address,
+        polyNameSpaceRegistrar.address
       );
+      
   })
 
   describe('Constructor', async () => {