While preping the documents for step one, submitting the I-130 application here in Bejing, I'm a bit confused about the birth certificate for my (Chinese) husband. He was born in 1981 in Beijing, but there isn't a birth certificate - he only has the hukou. Will a certified/tranlated copy of it from the offical Chinese gov't office for this stuff (e.g. marriage licenses) suffice instead? Also, his hukou is for his parent's house, but we've been living together for 9 years (and married for over 4 years) in rentals around Beijing. Will this address difference be an issue? Many thanks!