Laws & Regulations
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Clean Air Act Permitting in Kentucky
Information on air permitting in Kentucky and EPA's oversight.
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Recordkeeping Requirements for Refrigerant Retailers
Explains recordkeeping requirements for persons or companies selling refrigerants that are ozone-depleting substances.
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Lead (Pb) Air Pollution
This web area will provide information on setting and implementing the outdoor air quality standards for lead.
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Checklist for Refrigerant Reclaimers Seeking EPA Certification
Provides a list of the items that companies must submit to the EPA Section 608 Recycling Program Manager in order to be listed as an EPA-certified refrigerant reclaimer.
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Federal Air Rules for Indian Reservations (FARR) in Idaho, Oregon and Washington
Federal air rules for 39 indian reservations in Idaho, Oregon and Washington.
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Refrigerant Recovery and Recycling Equipment Certification
Provides information on requirements for using refrigerant recovery and recycling equipment that is certified by an EPA-approved testing organization.
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Refrigerant Sales Restriction
Describes the refrigerant sales restriction, which applies to all ODS refrigerants contained in bulk containers (such as cylinders, cans, or drums).
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Section 608 Technician Certification Requirements
Certifications for technicians who maintain, service, repair, or dispose of equipment that could release ozone depleting refrigerants or, after January 1, 2018, substitute refrigerants into the atmosphere.
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Frequent Questions about Program Implementation
Learn about allowances and trading, and learn how EPA uses these allowances to regulate and reduce emissions from the power sector.
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Criminal Press Releases - 2025
This is a list of press releases announcing results of EPA criminal cases adjudicated in U.S. courts for 2022.
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Model Lead Dust Sampling Technician Refresher Training Course
lead dust sampling technician model refresher training course
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Criminal Press Releases - 2023
This is a list of press releases announcing results of EPA criminal cases adjudicated in U.S. courts for 2022.
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Visibility Assessment & Air Quality Related Values (AQRVs)
Explanation of the meaning of Visibility Assessment and Air Quality Related Values (AQRVs)
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Nonattainment New Source Review (NNSR) Applicability
Explanation of Nonattainment New Source Review (NNSR) Applicability
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Lowest Achievable Emissions Rate (LAER)
Explanation of Lowest Achievable Emissions Rate (LAER)
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Processing of State Implementation Plans (SIPs) and Permits
Explanation of Processing State Implementation Plans (SIPs) and Permits
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Enforcement Issues & Implementation of Permitting Program
Explanation of Permit Enforcement and Implementation of NSR
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Marathon Ashland Petroleum LLC, St. Paul Park Refinery, Request for PSD Applicability Determination for FCCU Air Grid Maintenance and Replacement Projects
This document is part of the NSR Policy and Guidance Database.
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Secondary Emissions for PSD Air Quality Assessments Choctaw Generating, Inc., Red Hills Generating Facility, Choctaw County, Mississippi
This document is part of the NSR Policy and Guidance Database
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Plantwide Applicability Limit (PAL) Emissions Level
This document is part of the NSR Policy and Guidance Database.