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Related Material
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Approval and Promulgation of Air Quality Implementation Plans; State of Colorado; Denver 1-Hour Ozone Redesignation to Attainment, Designation of Areas for Air Quality Planning Purposes, and Approval of Related Revisions
- Executive Order 13045--Protection of Children From Environmental Health Risks and Safety Risks
- Executive Order 13132 - Federalism
- Executive Order 12866 Regulatory Planning and Review