Section text and notes
act July 14, 1955, ch. 360, title II, § 211 Pub. L. 90–148, § 281 Stat. 503 Section, , as added , , , provided for a national emissions standards study for stationary sources to be conducted by the Secretary, with a report and recommendations to be submitted to the Congress by , and for a study of the feasibility of controls for jet and piston aircraft engines, with a report thereon to Congress by .