Not later than 18 months after October 28, 1992, the Administrator shall, in consultation with the Secretary of Labor, the Secretary of Housing and Urban Development, and the Secretary of Health and Human Services (acting through the Director of the National Institute for Occupational Safety and Health), promulgate final regulations governing lead-based paint activities to ensure that individuals engaged in such activities are properly trained; that training programs are accredited; and that contractors engaged in such activities are certified. Such regulations shall contain standards for performing lead-based paint activities, taking into account reliability, effectiveness, and safety. Such regulations shall require that all risk assessment, inspection, and abatement activities performed in target housing shall be performed by certified contractors, as such term is defined in section 4851b of title 42. The provisions of this section shall supersede the provisions set forth under the heading “Lead Abatement Training and Certification” and under the heading “Training Grants” in title III of the Act entitled “An Act making appropriations for the Departments of Veterans Affairs and Housing and Urban Development, and for sundry independent agencies, commissions, corporations, and offices for the fiscal year ending September 30, 1992, and for other purposes”, Public Law 102–139 [105 Stat. 765, 42 U.S.C. 4822 note], and upon October 28, 1992, the provisions set forth in such public law under such headings shall cease to have any force and effect.