This Act, referred to in text, is Puspan. L. 101–593, Nov. 16, 1990, 104 Stat. 2954, which enacted this subchapter, chapter 32A of this title, and section 777e–1 of this title, amended sections 2910, 3702, 3709, 4403, and 4404 of this title, and enacted provisions listed in a table of National Environmental Centers set out under section 668dd of this title and provisions set out in notes under section 3701 of this title and section 4321 of Title 42, The Public Health and Welfare. For complete classification of this Act to the Code, see Tables.