CFR › Title 42 › Part 137 › §137.16742 CFR §137.167Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkA Self-Governance Tribe must apply the cost principles of the applicable OMB circular, except as modified by:(a)Section 106 (k) of the Act [25 U.S.C. 450j-1],(b)Other provisions of law, or(c)Any exemptions to applicable OMB circulars subsequently granted by the OMB.