(a) Articles acquired abroad. Articles subject to internal revenue tax and other merchandise acquired abroad constituting supplies arriving on international trains crossing and recrossing the boundary line, for which the train crew elects not to file an inventory as provided for in paragraph (b) of this section, shall be subject to duty and tax unless locked or sealed in a separate compartment or locker upon arrival, and the lock or seal remains unbroken until the train departs from the United States at the final port of exit.

(b) Inventory procedure. Supplies acquired abroad for which internal revenue stamps are not required may be used in the United States under the following procedure:

(1) Port of arrival. An inventory executed in duplicate consisting of an itemized list showing the kind and quantity of each class of supplies on hand in the car with space for a parallel column in which to show at the port of exit the quantity used, shall be certified by the person in charge of the car and furnished to the Customs officer upon arrival. The Customs officer shall certify the correctness of both copies of the inventory, return the original to the person in charge of the car and retain the duplicate, or forward it to the port of exit if this differs from the port of arrival.

(2) Port of exit. Upon arrival at the port of exit, the inventory returned at the port of arrival to the person in charge of the car shall be submitted to the Customs officer after completion by showing the quantity of each item used in the United States, and being certified by the person in charge of the car. Entries must be filed and applicable duties and taxes paid at the port of exit on the quantity of supplies consumed in the United States.

(c) Supplies purchased in the United States. Supplies purchased in the United States shall be passed free of duty without inventory or entry.

(a) Use on a continuous route. Foreign locomotives or other foreign railroad equipment in use on a continuous route crossing the boundary into the United States shall be admitted without formal entry or the payment of duty to proceed to the end of the run and depart for a foreign country, in accordance with the following:

(1) On inward trip. Unless formally entered and cleared through Customs into the United States, or unless exempt from entry as provided in § 141.4(b)(4) of this chapter, a foreign locomotive shall be used on the inward trip only in connection with taking the inbound train to the last place in a continuous haul, including the switching of cars which it has hauled into the United States. Other foreign railroad equipment may proceed to the place of complete unloading for any merchandise imported therein.

(2) On outward trip. Unless formally entered and cleared through Customs into the United States, or unless exempt from entry as provided in § 141.4(b)(4) of this chapter, foreign locomotives may be used on the outward trip only in connection with through trains crossing the boundary, including switching to make up such trains. Other foreign railroad equipment may be used in such trains or for such local traffic as is reasonably incidental to its economical and prompt departure for a foreign country.

(b) Admission of empty equipment. Empty foreign railroad equipment shall be admitted to the United States without formal entry and payment of duty only if:

(1) The passengers or goods to be loaded are to be transported directly to or through a foreign country; or

(2) The equipment is exempt from entry as provided in § 141.4(b)(4) of this chapter.

(c) Penalty for improper use. The use of any foreign locomotive and other foreign railroad equipment in violation of this section may result in liabilities being incurred under section 592, Tariff Act of 1930, as amended (19 U.S.C. 1592).

(d) Domestic and foreign locomotives and other railroad equipment defined. For the purpose of this section and § 123.13, locomotives or other railroad equipment manufactured in, or regularly imported into, the United States, shall be considered “domestic” if not subsequently formally entered and cleared through foreign customs into another country, nor used in foreign local traffic otherwise than as an incident of the return of the equipment to the United States. Other locomotives and railroad equipment shall be considered “foreign”.

A report of the first arrival in the United States of a domestic locomotive or other railroad equipment after repairs have been made in a foreign country other than those required to restore it to the condition in which it last left the United States (“running repairs”), shall be made promptly, in writing, to the Customs officer at the port of re-entry. The report shall state the time and place of arrival, and the nature and value of the repairs. Each such locomotive or other piece of railroad equipment when withdrawn from international traffic shall be subject to duty upon the value of the repairs (other than “running repairs”), made abroad at the rate at which the repaired article would be dutiable if imported. For the appropriate determination as to whether the locomotive or other railroad equipment should be considered “domestic” or “foreign”, see § 123.12(d).

(a) Admission without entry or payment of duty. Trucks, busses, and taxicabs, however owned, which have their principal base of operations in a foreign country and which are engaged in international traffic, arriving with merchandise or passengers destined to points in the United States, or arriving empty or loaded for the purpose of taking out merchandise or passengers, may be admitted without formal entry or the payment of duty. Such vehicles shall not engage in local traffic except as provided in paragraph (c) of this section.

(b) Deposit of registration by vehicle not on regular trip. In any case in which a foreign-based truck, bus, or taxicab admitted under this section is not in use on a regularly scheduled trip, the port director may require that the registration card for the vehicle be deposited pending the return of the vehicle for departure to the country from which it arrived, or the port director may take other appropriate measures to assure the proper use and departure of the vehicle.

(c) Use in local traffic. Foreign-based trucks, busses, and taxicabs admitted under this section shall not engage in local traffic in the United States unless the vehicle comes within one of the following exceptions:

(1) The vehicle may carry merchandise or passengers between points in the United States if such carriage is incidental to the immediately prior or subsequent engagement of that vehicle in international traffic. Any such carriage by the vehicle in the general direction of an export move or as part of the return of the vehicle to its base country shall be considered incidental to its engagement in international traffic. An alien driver will not be permitted to operate a vehicle under this paragraph, unless the driver is in compliance with the applicable regulations of the Immigration and Naturalization Service.

(2) A foreign-based truck trailer may carry merchandise between points in the United States on its departure for a foreign country under the same conditions as are prescribed for “other foreign railroad equipment” in § 123.12(a)(2).

(d) Penalty for improper use. The use of any vehicle referred to in this section in violation of this section may result in liabilities being incurred under section 592, Tariff Act of 1930, as amended (19 U.S.C. 1592).

Vehicles of foreign origin which are used for commercial purposes between adjoining or neighboring communities of the United States and Canada or Mexico, such as delivery, peddlers', and service trucks, or wagons, are subject to duty on first arrival, but may thereafter be admitted without formal entry or the payment of duty so long as they are continuously employed in such service.

(a) Admission without entry or payment of duty. Trucks, busses, and taxicabs, whether of foreign or domestic origin, taking out merchandise or passengers for hire or leaving empty for the purpose of bringing back merchandise or passengers for hire shall on their return to the United States be admitted without formal entry or the payment of duty upon their identity being established by State registration cards.

(b) Use in local traffic. Trucks, busses, and taxicabs in use in international traffic, which may include the incidental carrying of merchandise or passengers for hire between points in a foreign country, or between points in this country, shall be admitted under this section. However, such vehicles taken abroad for commercial use between points in a foreign country, otherwise than in the course of their use in international traffic, shall be considered to have been exported and must be regularly entered on return.

(a) Domestic trucks, busses, and taxicabs and their equipment defined. For the purpose of this section, trucks, busses, and taxicabs and their equipment manufactured in, or regularly imported into the United States, shall be considered “domestic” if not subsequently formally entered and cleared through foreign customs into another country, nor used in foreign local traffic otherwise than as an incident of their return to the United States.

(b) Report of arrival and payment of duty on repairs. A report of the first arrival in the United States of domestic trucks, busses, and taxicabs and their equipment after repairs have been made in a foreign country, other than those required to restore such vehicle or equipment to the condition in which it last left the United States (“running repairs”), shall be made by the driver or person in charge of the vehicle promptly, in writing, to the Customs officer at the port of reentry. The report shall state the time and place of arrival and the nature and value of the repairs. Each such vehicle or its equipment when withdrawn from international traffic shall be subject to duty upon the value of the repairs (other than “running repairs”) made abroad at the rate at which the repaired article would be dutiable if imported.

(a) Admission of equipment and materials. Equipment for use in construction of bridges or tunnels between the United States and Canada or Mexico shall be admitted without entry or the payment of duty. Materials for such use shall be admitted without entry or payment of duty only for installation in the bridge or tunnel proper, and not in the approaches on land at the United States end of such bridge or tunnel.

(b) Customs supervision. All articles admitted under paragraph (a) of this section shall be subject to Customs supervision at the expense of the builder until installed, entered, or exported.