我父母自已寫個statement 說從未參加過共產黨?-Right. Just like when a person plans to get married, he just needs to declare he is single at that time and thus, he is qualifed to marry the girl.
不用原單位或公安局什麽的出證明?
但好像移民局明確要求要公證書。原文是:Please provid a notarized statement explaining if you were you ever a member of the Chinese Communist Part.
-That means that if you joined the Party, then you need to provide that document. Because your parents have never join the Party, how are they able to provide that? "you were ever a member of the Chinese Communist Party" means you joined the Party before.