从打算申请N400开始，就在这里到处搜刮有用信息。今天宣誓了，特来回馈本版。tracking no. starts with IOE.。亲属移民。 06/01/2016----filed N400 07/01/2016----fingerprint collection 01/06/2017----received interview notice 02/08/2017----interview 02/13/2017-----received oath ceremony notice 03/14/2017----oath ceremony (adjourned due to the winter storm. called the district court on the 13th, was told the ceremony would be cancelled, received a call from USCIS that evening as well) 03/21/2017----received 2nd notice 04/13/2017----oath ceremony 因为打完指模后一直没动静，而比我晚一个月file的加州朋友（nbc开头），9月就宣誓了，10月回国了，所以我去了各国人民的版上去看，据阿三版说ioe开头的用的是新系统，全部delay。我信了阿三他们，就没催过。 其他一切顺其自然。