2 C.F.R. § 3485.330
(a) Before entering into a covered transaction with a participant at the next lower tier, you must require that participant to—
(c) The failure of a participant to include a requirement to comply with Subpart C of 2 CFR part 180 in the agreement with a lower tier participant does not affect the lower tier participant's responsibilities under this part.
(Authority: E.O. 12549 (3 CFR 1986 Comp., p. 189); E.O. 12689 (3 CFR 1989 Comp., p. 235); sec. 2455, Pub. L. 103-355, 108 Stat. 3327 (31 U.S.C. 6101 note); 20 U.S.C. 1082, 1094, 1221e-3, and 3474)