91 STAT. 726
PUBLIC LAW 95-95—AUG. 7, 1977 "PART B—OZONE PROTECTION "PURPOSES
42 USC 7450.
"SEC. 150. The purposes of this part are (1) to provide for a better understanding of the effects of human actions on the stratosphere, especially the ozone in the stratosphere, (2) to provide for a better understanding of the effects of changes in the stratosphere, especially the ozone in the stratosphere on the public health and welfare, (3) to provide information on the progress of regulation of activities which may reasonably be anticipated to affect the ozone in the stratosphere in such a way as to cause or contribute to endangerment of the public health or welfare, and (4) to provide information on the need for additional legislation in this area, if any. u. I N D I N G S AND DEFINITIONS F
42 USC 7451.
"SEC. 151. (a) The Congress finds, on the basis of presently available information, that— "(1) halocarbon compounds introduced into the environment potentially threaten to reduce the concentration of ozone in the stratosphere; "(2) ozone reduction will lead to increased incidence of solar ultraviolet radiation at the surface of the Earth; "(3) increased incidence of solar ultraviolet radiation is likely to cause increased rates of disease in humans (including increased rates of skin cancer), threaten food crops, and otherwise damage the natural environment; "(4) other substances, practices, processes, and activities may affect the ozone in the stratosphere, and should be investigated to give early warning of any potential problem and to develop the basis for possible future regulatory action; and "(6) there is some authority under existing law, to regulate certain substances, practices, processes, and activities which may affect the ozone in the stratosphere. ((DEFINITIONS
42 USC 7452.
"SEC. 152. For the purposes of this subtitle— "(1) the term 'halocarbon' means the chemical compounds CFCI3 and CF2CI2 and such other halogenated compounds as the Administrator determines may reasonably be anticipated to contribute to reductions in the concentration of ozone in the stratosphere; " (2) the term 'stratosphere' means that part of the atmosphere above the tropopause. ii
42 USC 7453.
STUDIES BY ENVlRONMENTAIi PROTECTION AGENCY
153. (a) The Administrator shall conduct a study of the cumulative effect of all substances, practices, processes, and activities which may affect the stratosphere, especially ozone in the stratosphere. The study shall include an analysis of the independent effects on the stratosphere especially such ozone in the stratosphere of— " (1) the release into the ambient air of halocarbons, " (2) the release into the ambient air of other sources of chlorine, " (3) the uses of bromine compounds, and '^SEC.
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