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40 CFR, Chapter I-Environmental Protection Agency, Subchapter C-Air Programs

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    • Part 50 - National Primary and Secondary Ambient Air Quality Standards
    • Part 51 - Requirements for Preparation, Adoption, and Submittal of Implementation Plans
    • Part 52 - Approval and Promulgation of Implementation Plans (sections 52.01--52.1018)
    • Part 52 - Approval and Promulgation of Implementation Plans (sections 52.1019--End)
    • Part 53 - Ambient Air Monitoring Reference and Equivalent Methods
    • Part 54 - Prior Notice of Citizen Suits
    • Part 55 - Outer Continental Shelf Air Regulations
    • Part 56 - Regional Consistency
    • Part 57 - Primary Nonferrous Smelter Orders
    • Part 58 - Ambient Air Quality Surveillance
    • Part 59 - National Volatile Organic Compound Emission Standards for Consumer and Commercial Products
    • Part 60 - Standards of Performance for New Stationary Sources (sections 60.1--End)
    • Part 60 - Standards of Performance for New Stationary Sources (Part 60, Appendixes)
    • Part 61 - National Emission Standards for Hazardous Air Pollutants
    • Part 62 - Approval and Promulgation of State Plans for Designated Facilities and Pollutants
    • Part 63 - National Emission Standards for Hazardous Air Pollutants for Source Categories (sections 63.1--63.599)
    • Part 63 - National Emission Standards for Hazardous Air Pollutants for Source Categories (sections 63.600--63.1199)
    • Part 63 - National Emission Standards for Hazardous Air Pollutants for Source Categories (sections 63.1200--End)
    • Part 64 - Compliance Assurance Monitoring
    • Part 65 - Consolidated Federal Air Rule
    • Part 66 - Assessment and Collection of Noncompliance Penalties by EPA
    • Part 67 - EPA Approval of State Noncompliance Penalty Program
    • Part 68 - Chemical Accident Prevention Provisions
    • Part 69 - Special Exemptions From Requirements of the Clean Air Act
    • Part 70 - State Operating Permit Programs
    • Part 71 - Federal Operating Permit Programs
    • Part 72 - Permits Regulation
    • Part 73 - Sulphur Dioxide Allowance System
    • Part 74 - Sulfur Dioxide Opt-Ins
    • Part 75 - Continuous Emission Monitoring
    • Part 76 - Acid Rain Nitrogen Oxides Emission Reduction Program
    • Part 77 - Excess Emissions
    • Part 78 - Appeal Procedures for Acid Rain Program
    • Part 79 - Registration of Fuels and Fuel Additives
    • Part 80 - Regulation of Fuels and Fuel Additives
    • Part 81 - Designation of Areas for Air Quality Planning Purposes
    • Part 82 - Protection of Stratospheric Ozone
    • Part 85 - Control of Air Pollution From Mobile Sources
    • Part 86 - Control of Emissions From New and In-Use Highway Vehicles and Engines (sections 86.1--86.599-99)
    • Part 86 - Control of Emissions From New and In-Use Highway Vehicles and Engines (sections 86.600-1--End)
    • Part 87 - Control of Air Pollution From Aircraft and Aircraft Engines
    • Part 88 - Clean-Fuel Vehicles
    • Part 89 - Control of Emissions From New and In-Use Nonroad Compression-Ignition Engines
    • Part 90 - Control of Emissions From Nonroad Spark-Ignition Engines
    • Part 91 - Control of Emissions From Marine Spark-Ignition Engines
    • Part 92 - Control of Air Pollution From Locomotives and Locomotive Engines
    • Part 93 - Determining Conformity of Federal Actions to State or Federal Implementation Plans
    • Part 94 - Control of Air Pollution From Marine Compression-Ignition Engines
    • Part 95 - Mandatory Patent Licenses
    • Part 96 - NOx Budget Trading Program for State Implementation Plans
    • Part 97 - Federal NOx Budget Trading Program