41 C.F.R. § 109-38.201-50 Registration in foreign countries.
Title 41 - Public Contracts and Property Management
Motor vehicles used in foreign countries are to be registered and carry license tags in accordance with the existing motor vehicle regulations of the country concerned. The person responsible for a motor vehicle in a foreign country shall make inquiry at the United States Embassy, Legation, or Consulate concerning the regulations that apply to registration, licensing, and operation of motor vehicles and shall be guided accordingly.
Title 41: Public Contracts and Property Management
PART 109–38—MOTOR EQUIPMENT MANAGEMENT
Subpart 109–38.2—Registration, Identification, and Exemptions
§ 109-38.201-50 Registration in foreign countries.

