...attainment of one of the Act's principal purposes, namely, ". . . to protect and enhance the quality of the Nation's air resources so as to promote the public health and irelfarc and the productive capacity of its population;" (italics added) cannot be adequately evaluated....

...control air pollution, (b) The purposes of this title are (1) to protect and enhance the quality of the Nation's air resources so as to promote the public...health and welfare and the productive capacity of its population; (2) to initiate and accelerate a national research and development program. to -achieve...

...such time as will not Impose unreasonable economic or social hardship on the Nation, the quality of the Nation's air resources so as to promote the public...health and welfare and the productive capacity of Its population; SECTION 2. A«end Sections l03(a)(l). l03(b)(7), and l03(e), relating to research programs,...

...such time as will not Impose unreasonable economic or social hardship on the Nation, the quality of the Nation's air resources so as to promote the public...health and welfare and the productive capacity of Us population; SECTION 2. Amend Sections 103(a)(l). 103(b)(7), and 103(e), relating to research programs,...

...which the significant deterioration requirement is derived is "to protect and enhance, the quality of the Nation's air resources so as to promote the public...health and welfare and the productive capacity of its population." Second, because judgments as to significant deterioration require a balancing of air...

...the Act, which reads: " (b) The purposes of this title are (1) to protect and enhance the quality of the Nation's air resources so as to promote the public...health and welfare and the productive capacity of its population; "H The Sierra Club asserted use of the words "protect" and "enhance" indicated a clear...

...performance for new stationary sources, and national emission standards for hazardous air pollutants so as to promote the public health and welfare and the productive capacity of the Nation, but nothing in this Act is intended to require or authorize the establishment by the Administrator...

...major objectives of the national environmental program may be broadly classified as (a) protection of the nation's air resources so as to promote the public health and welfare, and (b) restoration and maintenance of the chemical, physical and biological integrity of the nation's...

...of the Nation's air resources by attaining and maintaining national ambient air quality standards, so as to promote the public health and welfare and the productive capacity of [ its] the Nation's population and resources. " "(b) (5) to encourage cost-effective air quality control...

...1857(b)(l) announces that a purpose of the Clean Air Act is "to protect and enhance the quality of the Nation's air resources so as to promote the public health and welfare". An administrative regulation under the 1967 Amendments to the Act, published by the Department of Health,...