10 U.S.C. § 4145
(b) Payment of Costs.— A memorandum or other agreement under subsection (a) shall provide that, when a party to the agreement uses a test facility of another party to the agreement, the party using the test facility is charged by the party providing the test facility in accordance with the following principles:
(c) Determination of Indirect Costs; Delegation of Authority.—
(e) Definitions.— In this section:
(1) The term “direct cost”, with respect to the use of a test facility pursuant to a memorandum or other agreement under subsection (a)—
(B) may include costs of labor, materials, facilities, utilities, equipment, supplies, and any other resources of the test facility that are consumed or damaged in connection with—
(2) The term “indirect cost”, with respect to the use of a test facility pursuant to a memorandum or other agreement under subsection (a)—