The Secretary shall fix such premium charges for the insurance and guarantee of loans as are in his judgment adequate to cover expenses and probable losses, and deposit receipts from such charges in the Indian Loan Guaranty and Insurance Fund established pursuant to section 1497(a) of this title.

Loans guaranteed or insured pursuant to this subchapter shall bear interest (exclusive of premium charges for insurance, and service charge, if any) at rates not to exceed such per centum per annum on the principal obligation outstanding as the Secretary determines to be reasonable taking into consideration the range of interest rates prevailing in the private market for similar loans and the risks assumed by the United States.

The application for a loan to be guaranteed hereunder shall be submitted to the Secretary for approval. The Secretary may review each loan application individually and independently from the lender. Upon approval, the Secretary shall issue a certificate as evidence of the guaranty. Such certificate shall be issued only when, in the judgment of the Secretary, there is a reasonable prospect of repayment. No loan to an individual Indian may be guaranteed or insured which would cause the total unpaid principal indebtedness to exceed $500,000. No loan to an economic enterprise (as defined in section 1452 of this title) in excess of $250,000, or such lower amount as the Secretary may determine to be appropriate, shall be insured unless prior approval of the loan is obtained from the Secretary.

Loans made by any agency or instrumentality of the Federal Government (not including an eligible Community Development Finance Institution), or by an organization of Indians from funds borrowed from the United States, and loans the interest on which is not included in gross income for the purposes of chapter 1 of title 26 shall not be eligible for guaranty or insurance hereunder.

Any loans insured hereunder shall be restricted to those made by a financial institution subject to examination and supervision by an agency of the United States, a State, or the District of Columbia, and to loans made by Indian organizations from their own funds to other tribes or organizations of Indians.

Loans guaranteed hereunder may be made by any lender satisfactory to the Secretary, except as provided in section 1486 of this title. The liability under the guaranty shall decrease or increase pro rata with any decrease or increase in the unpaid portion of the obligation.

Any loan made by any national bank or Federal savings and loan association, or by any bank, trust company, building and loan association, or insurance company authorized to do business in the District of Columbia, at least 20 per centum of which is guaranteed hereunder, may be made without regard to the limitations and restrictions of any other Federal statute with respect to (a) ratio of amount of loan to the value of the property; (b) maturity of loans; (c) requirement of mortgage or other security; (d) priority of lien; or (e) percentage of assets which may be invested in real estate loans.

The maturity of any loan guaranteed or insured hereunder shall not exceed thirty years.

In the event of a default of a loan guaranteed hereunder, the holder of the guaranty certificate may immediately notify the Secretary in writing of such default and the Secretary shall thereupon pay to such holder the pro rata portion of the amount guaranteed and shall be subrogated to the rights of the holder of the guaranty and receive an assignment of the obligation and security. The Secretary may cancel the uncollectable portion of any obligation, to which he has an assignment or a subrogated right under this section. Nothing in this section shall be construed to preclude any forbearance for the benefit of the borrower as may be agreed upon by the parties to the loan and approved by the Secretary. The Secretary may establish the date, not later than the date of judgment and decree of foreclosure or sale, upon which accrual of interest or charges shall cease.

When a lender suffers a loss on a loan insured hereunder, including accrued interest, a claim therefor shall be submitted to the Secretary. If the Secretary finds that the loss has been suffered, he shall reimburse the lender therefor: Provided, That the amount payable to the lender for a loss on any one loan shall not exceed 90 per centum of such loss: Provided further, That no reimbursement may be made for losses in excess of 15 per centum of the aggregate of insured loans made by the lender: Provided further, That before any reimbursement is made, all reasonable collection efforts shall have been exhausted by the lender, and the security for the loan shall have been liquidated to the extent feasible, and the proceeds applied on the debt. Upon reimbursement, in whole or in part, to the lender, the note or judgment evidencing the debt shall be assigned to the United States, and the lender shall have no further claim against the borrower or the United States. The Secretary shall then take such further collection action as may be warranted, or may cancel the uncollectable portion of any debt assigned pursuant hereto. The Secretary may establish a date upon which accrual of interest or charges shall cease.

Whenever the Secretary finds that any lender or holder of a guaranty certificate fails to maintain adequate accounting records, or to demonstrate proper ability to service adequately loans guaranteed or insured, or to exercise proper credit judgment, or has willfully or negligently engaged in practices otherwise detrimental to the interests of a borrower or of the United States, he may refuse, either temporarily or permanently, to guarantee or insure any further loans made by such lender or holder, and may bar such lender or holder from acquiring additional loans guaranteed or insured hereunder: Provided, That the Secretary shall not refuse to pay a valid guaranty or insurance claim on loans previously made in good faith.

Any evidence of guaranty or insurance issued by the Secretary shall be conclusive evidence of the eligibility of the loan for guaranty or insurance under the provisions of this chapter and the amount of such guaranty or insurance: Provided, That nothing in this section shall preclude the Secretary from establishing, as against the original lender, defenses based on fraud or material misrepresentation or bar him from establishing, by regulations in force at the date of such issuance or disbursement, whichever is the earlier, partial defenses to the amount payable on the guaranty or insurance.

Title to any land purchased by a tribe or by an individual Indian with loans guaranteed or insured pursuant to this subchapter may be taken in trust, unless the land is located outside the boundaries of a reservation or a tribal consolidation area approved by the Secretary. Title to any land purchased by a tribe or an individual Indian which is outside the boundaries of the reservation or approved consolidation area may be taken in trust if the purchaser was the owner of trust or restricted interests in the land before the purchase, otherwise title shall be taken in the name of the purchaser without any restriction on alienation, control, or use. Title to any personal property purchased with loans guaranteed or insured hereunder shall be taken in the name of the purchaser.

The Secretary shall promulgate rules and regulations to carry out the provisions of this subchapter.