22 CFR Part 53

4 sections.

§ 53.1
§ 53.1 Passport requirement; definitions.
§ 53.2
§ 53.2 Exceptions.
§ 53.3
§ 53.3 Attempt of a citizen to enter without a valid passport.
§ 53.4
§ 53.4 Optional use of a valid passport.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.