Hi Ron, I have following situation. 1- I was working for a client A in location X. 2- My LCA was filed with address X for client A. 3- In this time period, i was asked to sit a new another building. As client moved from X address to Y address. 4- The address Y is nothing but adjacent block with same campus which is at maximum 100 meter from the address X. 5- Now, do i need to apply a new LCA just because i moved to another block but client, city and zip code remains same? 6- If yes, i already started working on the new place without applying LCA, So can i apply now a new LCA where i have already started working? 7 - If not required, then it is fine I appreciate your time and others members for responding to my post in advance.