22 C.F.R. § 53.3 Attempt of a citizen to enter without a valid passport.
Title 22 - Foreign Relations
The appropriate officer at the port of entry shall report to the Secretary of State for the purpose of invoking the waiver provisions of §53.2(h), any citizen of the United States who attempts to enter the United States contrary to the provisions of this part.
Title 22: Foreign Relations
PART 53—PASSPORT REQUIREMENT AND EXCEPTIONS
§ 53.3 Attempt of a citizen to enter without a valid passport.