Sec. 817. ROLE OF SECONDARY STANDARDS

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## SEC. 817 ROLE OF SECONDARY STANDARDS ###

(a)Report The Administrator shall request the National Academy of Sciences to prepare a report to the Congress on the role of national secondary ambient air quality standards in protecting welfare and the environment. The report shall: ####

(1)include information on the effects on welfare and the environment which are caused by ambient concentrations of pollutants listed pursuant to section 108 and other pollutants which may be listed; ####

(2)estimate welfare and environmental costs incurred as a result of such effects; ####

(3)examine the role of secondary standards and the State implementation planning process in preventing such effects; ####

(4)determine ambient concentrations of each such pollutant which would be adequate to protect welfare and the environment from such effects; ####

(5)estimate the costs and other impacts of meeting secondary standards; and ####

(6)consider other means consistent with the goals and objectives of the Clean Air Act which may be more effective than secondary standards in preventing or mitigating such effects. ###

(b)Submission to Congress; Comments; Authorization ####

(1)The report shall be transmitted to the Congress not later than 3 years after the date of enactment of the Clean Air Act Amendments of 1990. ####

(2)At least 90 days before issuing a report the Administrator shall provide an opportunity for public comment on the proposed report. The Administrator shall include in the final report a summary of the comments received on the proposed report. ####

(3)There are authorized to be appropriated such sums as are necessary to carry out this section. * * * * * * *