91 STAT. 730
PUBLIC LAW 95-95—AUG. 7, 1977 substance, practice, process, or activity may reasonably be anticipated to affect the stratosphere, especially ozone in the stratosphere, and such effect may reasonably be anticipated to endanger public health or welfare, the Administrator shall promptly promulgate regulations respecting the control of such substance, practice, process, or activity, and shall simultaneously submit notice of the promulgation of such regulations to the Congress. "(b) Upon submission of the final report referred to in section 155, and after consideration of the research and study under sections 153 and 154 and, consultation with appropriate Federal agencies and scientific entities, the Administrator shall propose regulations for the control of any substance, practice, process, or activity (or any combination thereof) which in his judgment may reasonably be anticipated to affect the stratosphere, especially ozone in the stratosphere, if such effect in the stratosphere may reasonably be anticipated to endanger public health or welfare. Such regulations shall take into account the feasibility and the costs of achieving such control. Such regulations may exempt medical use products for which the Administrator determines there is no suitable substitute. Not later than three months after proposal of such regulations the Administrator shall promulgate such regulations in final form. From time to time, and under the same procedures, the Administrator may revise any of the regulations submitted under this subsection. uOTHER PROVISIONS UNAFFECTED
42 USC 7458. Post, pp. 769, 791.
15 USC 2601 note. 15 USC 2608.
"SEC. 158. Nothing in this part shall be construed to alter or affect the authority of the Administrator under section 303 (relating to emergency powers), under section 231 (relating to aircraft emission standards), or under any other provision of this Act or to affect the authority of any other department, agency, or instrumentality of the United States under any other provision of law to promulgate or enforce any requirement respecting the control of any substance, practice, process, or activity for purposes of protecting the stratosphere or ozone in the stratosphere. In the case of any proposed rule respecting ozone in the stratosphere which has been published under the Toxic Substances Control Act prior to the date of enactment of this Act notwithstanding section 9(b) of such Act, nothing in this part shall be construed to prohibit or restrict the Administrator from taking any action under the Toxic Substances Control Act respecting the promulgation or enforcement of such rule. uSTATE
42 USC 7459.
AUTHORITY
"SEC. 159. (a) Nothing in this part shall preclude or deny any State or political subdivision thereof from adopting or enforcing any requirement respecting the control of any substance, practice, process, or activity for purposes of protecting the stratosphere or ozone in the stratosphere except as otherwise provided in subsection (b). "(b) If a regulation of any substance, practice, process, or activity is in effect under this part in order to prevent or abate any risk to the stratosphere, or ozone in the stratosphere, no State or political subdivision thereof may adopt or attempt to enforce any requirement respecting the control of any such substance, practice, process, or activity to prevent or abate such risk, unless the requirement of the State or political subdivision is identical to the requirement of such
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