xiaobaitu 等高手請教，I-485轉到local office.

我先生的i-485在幾天前剛剛通過。今天我受到uscis的e-mail，說我的case轉到了local office：

on july 21, 2006, we transferred your i485 application to register permanent residence or to adjust status to an office in xxx for processing. our office in xxx will send you a written decision as soon as processing is complete. you should receive a notice ining you that your case has been transferred to a local office.

到底是為什麽呐，還需要什麽process？需要所謂的麵試嗎，
謝謝回答。