If someone lives in the US in a nonimmigrant status, is the person required to maintain a valid passport while the person is in the United States? If so, citations for the relevant portions of the US Code or Code of Federal Regulations are appreciated.
This should not be possible for many nonimmigrants, because their period of admission is supposed to be limited to the validity of their passport (for some countries' passports, even six months less than its validity), but as I understand it, it could happen to someone admitted "D/S," meaning for "duration of status," or to someone who has changed or adjusted status while in the US.
Because the linked resource is a comment, I quote it here:
In any case, in practice, I have seen many reports of people getting COS/EOS I-94s that match the petition expiration even when their passports were expiring sooner, and I have never heard of someone getting COS/EOS I-94s that are limited by the passport expiration, so at least that's how USCIS handles it in practice. In fact, many times people are surprised that they get COS/EOS I-94s that match petition expiration, but when they leave and re-enter the US, they get I-94 at entry that expires earlier due to passport expiration, because CBP is required to limit I-94 by passport expiry.
Another comment says:
The AFM chapters on Change of Status and Extension of Status do say that "The applicant must hold a valid passport at the time of application and is required to maintain validity during the entire period of his or her stay in the United States." which supports the view that the passport only has to be valid, and not for a particular length, at the time of application.
One of the linked pages makes reference to 8 CFR 214.1, but that seem to say more about what happens at the time of the application and not much about what happens afterwards. In particular, it says that "the alien must agree to maintain the validity of his or her passport," but it does not say whether anything happens if the alien fails to do so.
I would also be interested to know whether the answer would be different for someone in G-4 status (for example) as opposed to someone in F-1 or H-1B status (for example).