Laws & Regulations
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State Review Framework (SRF) - Maryland Final Reports
Details findings for the Maryland State Review Framework
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Regulatory Requirements for Engine Manufacturers to Participate in the Transition Program for Equipment Manufacturers (TPEM)
Review all the requirements for engine manufacturers to participate in TPEM.
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Information for Consumers about Alternative Fuel Conversions
Here are some factors to be aware of if you are considering fuel conversion, including background information on fuel conversion, instructions for demonstrating compliance, and other related information.
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Evaluation Program for Aftermarket Retrofit Devices
EPA conducts a voluntary program to evaluate aftermarket devices and fuel additives that manufacturers claim will improve fuel economy and/or reduce exhaust emissions for passenger cars and trucks.
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Compliance Reporting for Nonroad Spark-Ignition (SI) Engines
Steps for compliance reporting with EPA for small nonroad equipment and tools.
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Technical Data and Reports on Sulfur Dioxide (SO2) Measurements and SIP Status
EPA collects data from the states and regions on their air quality and state implementation plan (SIP) progress. This information is compiled in a database, and used to create reports, trend charts, and maps.
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Technical Data and Reports on Nitrogen Dioxide Measurements and SIP Status
EPA collects data from the states and regions on their air quality and state implementation plan (SIP) progress. This information is compiled in a database, and used to create reports, trend charts, and maps.
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Compliance Reporting for Nonroad Compression-Ignition (NRCI) Engines
Steps for compliance reporting with EPA for nonroad heavy equipment.
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Compliance Reporting for Locomotives
Steps for compliance reporting with EPA for locomotives.
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SBAR Panel: National Emission Standards for Hazardous Air Pollutants (NESHAP): Ethylene Oxide (EtO) Commercial Sterilization and Fumigation Operations
SBAR panel on National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Commercial Sterilization and Fumigation Operations
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Compliance Reporting for Aircraft
Steps for compliance reporting with EPA for aircraft.
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Compliance Reporting for All-Terrain Vehicles (ATVs) and Dirt Bikes
Steps for compliance reporting with EPA for ATVs.
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Certification for Snowmobiles
Steps for certifying snowmobiles with EPA.
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Proposal to Clarify Authority to Address Releases of Hazardous Waste at Treatment, Storage, and Disposal Facilities
Proposal to Clarify Authority to Address Releases of Hazardous Waste at Treatment, Storage, and Disposal Facilities
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Certification for All-Terrain Vehicles (ATVs) and Dirt Bikes
Steps for certifying ATVs with EPA.
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CSAPR Compliance Year 2018 NUSA NODAs
This page contains links to NUSA Notices of Data Availability for the CSAPR 2016 compliance year.
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Memos and Notices Regarding Interstate Air Pollution Transport
Find links to memos and notices related to Interstate Air Pollution Transport
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CSAPR Compliance Year 2023 NUSA NODAs
This page contains links to NUSA Notices of Data Availability for the CSAPR 2023 compliance year.
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Revised Cross-State Air Pollution Rule Update
Learn about the the final Revised Cross-State Air Pollution Rule (CSAPR) Update for the 2008 Ozone NAAQS which addresses interstate air pollution transport in 23 eastern states under the Clean Air Act.
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Good Neighbor Plan for 2015 Ozone NAAQS
Learn about the Good Neighbor Plan for the 2015 Ozone NAAQS, which addresses interstate air pollution transport under the Clean Air Act.