What if kanses branch filed for labor not the corp office. If he wants to move to baltimore, does he needs to use AC21 or not. I am in the same situation here. My atlanta office did all the paper work for me(labor and 140) but the corp office is in Dallas, tx. They never done any paper work for me. I moved to Detroit office but the same company, same job. Do i need to use AC21 or not? or I can claim that it's all the same company. Please explain.. I am confused...thanks. I am not in H1 but i am using EAD (245i filed)