22 C.F.R. § 40.72 Documentation requirements for nonimmigrants.
Title 22 - Foreign Relations
A passport which is valid indefinitely for the return of the bearer to the country whose government issued such passport shall be deemed to have the required minimum period of validity as specified in INA 212(a)(7)(B).
Title 22: Foreign Relations
PART 40—REGULATIONS PERTAINING TO BOTH NONIMMIGRANTS AND IMMIGRANTS UNDER THE IMMIGRATION AND NATIONALITY ACT, AS AMENDED
Subpart H—Documentation Requirements
§ 40.72 Documentation requirements for nonimmigrants.