I got US citizenship through naturalization a few years back but lost the certificate and I never got a US passport . I applied for replacement ( N565 ) six months ago and received a mail now stating that it was approved but I have to wait a few months until they process and send the actual certificate . Is it possible to use the approval receipt as proof of citizenship when applying for Adjustment of Status for my husband ? If not , what other options are there to save time ? My husband has F 1 ( OPT ) visa which expired a year ago and we have been married for two years .