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An Act to Amend the Clean Air Act to Provide for Attainment and Maintenance of Health Protective National Ambient Air Quality Standards, and for Other Purposes
- "Clean Air Act Amendments of 1990"@en
- "An Act to Amend the Clean Air Act to Provide for Attainment and Maintenance of Health Protective National Ambient Air Quality Standards, and for Other Purposes"@en
- "An act to amend the Clean Air Act to provide for attainment and maintenance of health protective national ambient air quality standards and for other purposes : S. 1630"@en