15 U.S.C. § 697a: Private debenture sales

Of the program levels otherwise authorized by law for fiscal year 1986, an amount not to exceed $200,000,000. Of the program levels otherwise authorized by law for each of fiscal years 1987 and 1988, an amount not to exceed $425,000,000. All of the program levels authorized for fiscal year 1989 and subsequent fiscal years. any obligation the payment of principal or interest on which at any time has been guaranteed in whole or in part under section 697 of this title and which is being sold pursuant to the provisions of the program authorized in this section; any obligation which is an interest in any obligation described in paragraph (1); or any obligation which is secured by, or substantially all of the value of which is attributable to, any obligation described in paragraph (1) or (2).