QUOTE(YuAndDan @ Nov 10 2007, 07:51 PM)

USCIS is in the United States, you will be giving the papers to the US Embassy in Hong Kong, and no I don't believe that the US Citizen needs to turn in the paperwork.
Also you may be interested in the Chinese Immigrations website "A Candle for Love" Many members there have interviewed and received visas from Hong Kong.
http://candleforlove.comFinaly a big thing that will come up at the interview is: US Domicile, and US IRS returns, your husband MUST have maintained US Domicile and filed returns while out of the USA, both are requirements of the I-864 required by the visa.
Actually Dan, DCF filings can only be made at Embassies or Consulates that have USCIS offices attached, so the petition will, in fact, be adjudicated by USCIS, in Hong Kong. Once approved by USCIS, the Embassy's Consular section Immigrant visa group will process the visa application, medical and interview.
The OP should contact the Embassy for filing instructions.