; and (ii) specify applicable timetables for action as part of the inventory in accordance with clause (vii) or (viii) of paragraph (11) of section 8(b) of the Toxic Substances Control Act ( 15 U.S.C. 2607(b) ). (4) Authorization of appropriations (A) In general There are authorized to be appropriated to the Administrator such sums as are necessary to carry out this subsection and the amendments made by this subsection. (B) Maintenance of funding The funding provided under this paragraph shall supplement, not supplant, other Federal funding to carry out the Toxic Substances Control Act ( 15 U.S.C. 2601 et seq. ). (h) Hazardous waste Not later than 180 days after the date of enactment of this Act, the Administrator shall initiate a rulemaking to list discarded polyvinyl chloride as a hazardous waste under the Solid Waste Disposal Act ( 42 U.S.C. 6901 et seq. ). (i) Cumulative impact requirements for covered facilities (1) Federal Water Pollution Control Act Section 402 of the Federal Water Pollution Control Act ( 33 U.S.C. 1342 ) is amended— (A) by striking the section designation and heading and all that follows through Except as in subsection (a)(1) and inserting the following: 402. National pollutant discharge elimination system (a) Permits issued by Administrator (1) In general Except as ; (B) in subsection (a)— (i) in paragraph (1)— (I) by striking upon condition that such discharge will meet either (A) all and inserting the following: subject to the conditions that— (A) the discharge will achieve compliance with— (i) all ; (II) by striking 403 of this Act, or (B) prior and inserting the following: 403; or (ii) prior ; and (III) by striking this Act. and inserting the following: this Act