Laws & Regulations

Certification Materials for All-Terrain Vehicles (ATVs) and Dirt Bikes

Use these files for ATV certification in the Verify System.

Production Line Testing Templates for Locomotive Engines

Use these files for locomotive compliance reporting in the Verify System.

Guidance Documents related to Annex VI Standards for Marine Diesel Engines and Fuel

Guidance Documents related to Marine Emissions Control Areas

EPA Presentations Regarding the Midterm Evaluation of Light-Duty Vehicle Greenhouse Gas Emissions Standards for Model Years 2022-2025

This page contains a selection of the presentations that EPA has publicly presented about our work on the Midterm Evaluation (MTE).

Managing Your USTs in Indian Country: Compliance Assistance Fact Sheets

Review a series of compliance assistance brochures that help UST owners and operators in Indian country comply with regulations.

Rules that Help States Reduce Emissions and Meet Ozone Standards

Using control measures and strategies associated with rules such as Mobile Source Air Toxics to reduce air emissions, can help states to meet ground-level ozone pollution standards.

Final Determinations of Attainment by the Attainment Date, Extensions of the Attainment Date, and Reclassification of Several Areas Classified as Moderate for the 2008 Ozone Air Quality Standards

Final determinations for moderate nonattainment areas for the 2008 ozone NAAQS

Revised Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards

EPA is taking the next step in the Clean Air Act process to implement the national air quality standards for ozone set in 2015.

Findings of Failure to Submit Regional Haze State Implementation Plans for the Second Planning Period

Creating Draft page for upcoming FFS announcement. This page will contain the fact sheet and pre-publication version of the FFS.

Nitrogen Dioxide Designations - Delaware State Recommendation and EPA Response

2010 Nitrogen dioxide (NO2) standards. Delaware state recommendation and EPA response.

Nitrogen Dioxide Designations - Washington, District of Columbia State Recommendation and EPA Response

2010 Nitrogen dioxide (NO2) standards. Washington, D.C. state recommendation and EPA response.

Nitrogen Dioxide Designations - Puerto Rico (U.S. Territory) State Recommendation and EPA Response

2010 Nitrogen dioxide (NO2) standards. Puerto Rico (U.S. Territory) state recommendation and EPA response.

Nitrogen Dioxide Designations - North Carolina State Recommendations and EPA Response

2010 Nitrogen dioxide (NO2) standards. North Carolina state recommendations and EPA response.

Nitrogen Dioxide Designations - Michigan State Recommendations and EPA Response

2010 Nitrogen dioxide (NO2) standards. Michigan state recommendation and EPA response.

Nitrogen Dioxide Designations - Lytton Rancheria of California Tribal Recommendation and EPA Response

2010 Nitrogen dioxide (NO2) standards. Lytton Rancheria of California Tribal recommendation and EPA response.

Nitrogen Dioxide Designations - Illinois State Recommendations and EPA Response

2010 Nitrogen dioxide (NO2) standards. Illinois state recommendation and EPA response.

Nitrogen Dioxide Designations - South Carolina State Recommendations and EPA Response

2010 Nitrogen dioxide (NO2) standards. South Carolina state recommendations and EPA response.

EPA Approved Regulations in the Rhode Island SIP

Lead (Pb) Standards - Integrated Science Assessments from Review Completed in 2016

Scientific and technical Integrated Science Assessments used to develop the current lead national ambient air quality standard.

National Ambient Air Quality Standards (NAAQS) for Lead (Pb) Fact Sheets and Additional Information

This page contains a variety of fact sheets and other documents that are supplementary to the November 2008 Lead (Pb) National Ambient Air Quality Standards (NAAQS).