In this subtitle, the term “commercial service” means any of the following:
(1) Installation services, maintenance services, repair services, training services, and other services if—
those services are procured for support of a commercial product, regardless of whether the services are provided by the same source or at the same time as the commercial product; and
(2) Services of a type offered and sold competitively, in substantial quantities, in the commercial marketplace—
A service described in paragraph (1) or (2), even though the service is transferred between or among separate divisions, subsidiaries, or affiliates of a contractor.