§31.3401(a)(7)-1 Remuneration paid before January 1, 1967, for services performed by nonresident alien individuals who are residents of a contiguous country and who enter and leave the United States at frequent intervals.

(a) Transportation service. Remuneration paid to nonresident aliens who are residents of a contiguous country (Canada or Mexico) and who, in the performance of their duties in transportation service between points in the United States and points in a contiguous country, enter and leave the United States at frequent intervals, is excepted from wages and hence is not subject to withholding. This exception applies to personnel engaged in railroad, bus, ferry, steamboat, and aircraft services and applies whether the employer is a domestic or foreign entity. Thus, the remuneration of a nonresident alien individual who is a resident of Canada and an employee of a domestic railroad, for services as a member of the crew of a train operating between points in Canada and points in the United States, is not subject to withholding under section 3402.