为父母申请绿卡，已经提供出生公证书，但是今天又收到信要求提供户口信息，有人被要求过同样文件的吗？highlight了第三条“hu kou" 请问：有经验的可否告知，这个户口具体指的是什么？户口本吗？ 给我的的纸条是这样写的: Chinese Notarial Certificates are considered to be secondary evidence. Therefore, at least one of the following official documents must be submitted in support of the notarial certificate of birth: - Birth Certificate - Hospital Certificate - Family Household Registry - please provide the "hu kou" - Family Household Register Form - Booklet issued by the Province's Health Department regarding the birth

请问这个额外的文件是指的户口本吗？

出生公证是有寄过去的，但是还被要求RFE