485GCCase, you have to mail AR11 form to Kentucky (address is on that form and you can download the form at the BCIS website).
Is it mandantory to also call VSC and inform them about new address? As far as I know they are going to disconnect their phones soon. Also, is it mandantory to mail a duplicate AR11 to VSC?
MiaoMiao, I am in a similar situation like you - I want to switch jobs but this would involve a move from one service center region to another. Right now I am thinking about two scenarios of handling this, please let me know your thoughts (I assume that you thought about the same issues long and hard and I would like to know which approach you think is better, all other opinions are welcome too of course).
My approval should be not too far away, here are two options:
1) Take new job, file AR11 with Kentucky and VSC at the very end of 10 days, but do not inform of AC21 use unless RFE is issued or case is transferred. (it is not required to inform about AC21, as far as I know, unless that has changed recently).
2) Like above scenario with only exception to send letter stating use of AC21 rule to VSC (together with AR11 form).