Section 9631, Pub. L. 96–510, title II, § 221, Dec. 11, 1980, 94 Stat. 2801; Pub. L. 99–499, title II, § 204, Oct. 17, 1986, 100 Stat. 1696, provided for establishment of a Hazardous Substances Superfund, so redesignated by section 204 of Pub. L. 99–499. See section 9507 of Title 26, Internal Revenue Code. Section 9632, Pub. L. 96–510, title II, § 222, Dec. 11, 1980, 94 Stat. 2802, limited liability of United States to amount in Trust Fund. Section 9633, Pub. L. 96–510, title II, § 223, Dec. 11, 1980, 94 Stat. 2802, contained administrative provisions.