25 C.F.R. § 141.49 Usury prohibited.
Title 25 - Indians
No reservation business may take or receive money, goods, or other things of value for a loan or forbearance on a debt that exceeds in value the principal plus twenty-four percent (24 percent) per annum finance charge. Any reservation business contracting for, reserving, or receiving directly or indirectly, any greater amount shall forfeit the finance charge.
Title 25: Indians
PART 141—BUSINESS PRACTICES ON THE NAVAJO, HOPI AND ZUNI RESERVATIONS
Subpart E—Consumer Credit Transactions Other Than Pawn
§ 141.49 Usury prohibited.