Laws & Regulations

Final Rule for Finding That Greenhouse Gas Emissions From Aircraft Cause or Contribute to Air Pollution That May Reasonably Be Anticipated To Endanger Public Health and Welfare

The EPA finalized findings that greenhouse gas (GHG) emissions from certain classes of engines used in aircraft contribute to the air pollution that causes climate change endangering public health and welfare under section 231(a) of the Clean Air Act.

Final Rule for Emission Durability Procedures for New Light-Duty Vehicles, Light-Duty Trucks and Heavy-Duty Vehicles

This final rulemaking contains procedures to be used by manufacturers of light-duty vehicles, light-duty trucks, and some heavy-duty vehicles to demonstrate, for purposes of emission certification.

Public Hearing on EPA's Proposed Carbon Pollution Standards for Fossil Fuel-Fired Power Plants

Information about the public hearing for the propopsed carbon pollution standards for fossil-fuel fired power plants.

Final Rule for Emission Standards for Locomotives and Locomotive Engines

In 1998, EPA promulgated final exhaust emission standards for oxides of nitrogen (NOx), hydrocarbons (HC), carbon monoxide (CO), particulate matter (PM) and smoke for newly manufactured and remanufactured locomotives and locomotive engines.

Criminal Press Releases - 2021

This is a list of press releases announcing results of EPA criminal cases adjudicated in U.S. courts for 2021.

Final Rule for Control of Hazardous Air Pollutants From Mobile Sources - 40 CFR Parts 59, 80, 85, and 86

Final Rule for Control of Hazardous Air Pollutants From Mobile Sources

Final Rule for Control of Hazardous Air Pollutants From Mobile Sources: Early Credit Technology Requirement Revision

EPA is taking final action to revise the February 26, 2007 mobile source air toxics rule’s requirements that specify which benzene control technologies a refiner may utilize to qualify to generate early benzene credits.

Criminal Press Releases - 2023

This is a list of press releases announcing results of EPA criminal cases adjudicated in U.S. courts for 2022.

Criminal Press Releases - 2024

This is a list of press releases announcing results of EPA criminal cases adjudicated in U.S. courts for 2022.

Designation of the North American Emission Control Area for Marine Vessels

Materials related to MARPOL Annex VI Marine Emission Control Area in North America

Direct Final Rule for Great Lakes Steamship Repower Incentive Program

Direct Final Rule to add a provision to our marine diesel engine program to encourage owners of Great Lakes steamships to repower those steamships with cleaner Tier 2 or later marine diesel engines.

Proposed Rule and Related Materials for Control of Emissions From New Marine Compression-Ignition Engines at or Above 2.5 Liters Per Cylinder

Includes links to Federal Register notice, fact sheets and draft regulatory support document

Final Rule for Control of Emissions From New Marine Compression-Ignition Engines at or Above 2.5 Liters Per Cylinder

The near-term, Tier 1 standards in this rule are equivalent to the internationally negotiated emission limits for oxides of nitrogen (NOx). These standards will go into effect in 2004 and are based on readily available emission-control technology.

Proposed Rule and Related Materials for Control of Emissions from New Marine Compression-Ignition Engines at or Above 30 Liters Per Cylinder

Proposed Rule and Related Materials for: Control of Emissions from New Marine Compression-Ignition Engines at or Above 30 Liters Per Cylinder