25 U.S.C. § 1488
Lenders authorized to make loans; decrease or increase of liability under the guaranty
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.
( Pub. L. 93–262, title II, § 208 , Apr. 12, 1974 , 88 Stat. 80 .)