The Secretary, in his discretion, may require security other than bonds required by sections 3131 and 3133 of title 40 when entering into a contract with an Indian-owned economic enterprise pursuant to the provisions of the Act of (), for the construction, alteration, or repair of any public work of the United States: , That, the alternative form of security provides the United States with adequate security for performance and payment.25 U.S.C. 47June 25, 19101910-06-25Provided