Any regulation of the Environmental Protection Agency under subchapter I which is inconsistent with this subchapter shall not be in effect after October 22, 1986. Any advanced notice of proposed rulemaking, any proposed rule, and any regulation of the Environmental Protection Agency in effect before October 22, 1986, which is consistent with the regulations required under section 2643 of this title shall remain in effect and may be used to meet the requirements of section 2643 of this title, except that any such regulation shall be enforced under this chapter.