For the purposes of this chapter -

(a)

''Secretary'' means Secretary of Labor.

(b)

The term ''service employee'' means any person engaged in the performance of a contract entered into by the United States and not exempted under section 356 of this title, whether negotiated or advertised, the principal purpose of which is to furnish services in the United States (other than any person employed in a bona fide executive, administrative, or professional capacity, as those terms are defined in part 541 of title 29, Code of Federal Regulations, as of July 30, 1976, and any subsequent revision of those regulations); and shall include all such persons regardless of any contractual relationship that may be alleged to exist between a contractor or subcontractor and such persons.

(c)

The term ''compensation'' means any of the payments or fringe benefits described in section 351 of this title.

(d)

The term ''United States'' when used in a geographical sense shall include any State of the United States, the District of Columbia, Puerto Rico, the Virgin Islands, Outer Continental Shelf lands as defined in the Outer Continental Shelf Lands Act, American Samoa, Guam, Wake Island, Eniwetok Atoll, Kwajalein Atoll, Johnston Island, and Canton Island, but shall not include any other territory under the jurisdiction of the United States or any United States base or possession within a foreign country