25 C.F.R. § 170.606
How do legislation and procurement requirements affect the TTP?
Cite as 25 C.F.R. § 170.606 (2025)
Other legislation and procurement requirements apply to the TTP as shown in the following table:
Legislation, regulation or other requirement
Applies to Tribes under self-
determination
contracts
Applies to Tribes under self-
governance
agreements
Applies to Tribes under BIA or FHWA program agreements
Applies to
activities
performed by the Secretary
Buy Indian Act
No
No
No
Yes.
Buy American Act
No
No
No
Yes.
Federal Acquisition Regulation (FAR)
No(a)
No
No
Yes.
Federal Tort Claims Act
Yes
Yes
Yes
Yes.
Davis-Bacon Act
Yes(b)
Yes(b)
Yes(b)
Yes.
(a) Unless agreed to by the Tribe or Tribal organization under ISDEAA, 25 U.S.C. 450j(a), and 25 CFR 900.115.
(b) Does not apply when Tribe performs work with its own employees.
- Cross-references to the US Code
- 25:450j
- Cross-references to the CFR
- 25:900.115.