; (2) maximizing protections for human health and the environment; (3) minimizing costs for the production, use, and reclaiming of regulated substances; (4) maximizing flexibility for the recovery, reclaiming, and re-use of regulated substances; (5) ensuring consumer safety; (6) the availability of substitutes for regulated substances, taking into account technological achievability, commercial demands, safety, and other relevant factors, including lead times for equipment conversion; and (7) minimizing any costs to consumers. (e) Evaluation For purposes of this Act, the Administrator shall, on an ongoing basis, evaluate the availability of substitutes to regulated substances in a sector or subsector, taking into account technological achievability, commercial demands, safety, and other relevant factors, including lead times for equipment conversion. 8. Rulemaking authority (a) Rulemakings The Administrator may promulgate such regulations as are necessary to carry out the functions of the Administrator under this Act. (b) Delegation The Administrator may delegate to any officer or employee of the Environmental Protection Agency such of the powers and duties of the Administrator under this Act as the Administrator determines to be appropriate. (c) Requirements In exercising any requirement or authority in this Act to act by regulation or to promulgate regulations, the Administrator shall comply with the requirements of section 307(d) of the Clean Air Act ( 42 U.S.C. 7607(d) ). 9. Relationship to other laws Sections 113, 114, 304, and 307 of the Clean Air Act ( 42 U.S.C. 7413 , 7414, 7604, 7607) shall apply to this Act and any regulations promulgated by the Administrator pursuant to this Act as though this Act were included in title VI of the Clean Air Act ( 42 U.S.C. 7671 et seq.).