07372. THE CLEAN AIR ACT FO 1963 AND AMENDMENTS OF 1966 AND 1970: HISTORICAL BACKGROUND AND INTEREST GROUP CONFLICT. Detailed study of how these clean air acts and improvements were passed in Congress, focusing on the interest group conflict between environmentalists on one hand and business on the other. Takes generally leftish viewpoint. 6 pages, 12 footnotes, 7 bibliographic sources.