Laws & Regulations

Extension of Stay of the RFG Program: parts of NY, PA, and ME

EPA extends the previous temporary stay of the reformulated gasoline program requirements in nine opt in counties in New York, in twenty-eight opt-in counties in Pennsylvania and in two opt-in counties in Maine.

Recalls of Vehicles and Engines

n cases where EPA has determines that manufacturers have provided inaccurate, incomplete or falsified certification information or failed to keep required records, the Clean Air Act gives the EPA the authority to void certificates.

Gas Guzzler Tax

Information about the Gas Guzzler Tax that is assessed on new cars that do not meet required fuel economy levels.

Port and Goods Movement Emission Inventories

Methodologies for Estimating Port-Related and Goods Movement Mobile Source Emission Inventories

UIC Permit: PAS2D205BCLE

EXCO underground injection control permit

Streamlined Procedures for Opting Out of RFG Requirements

This page provides information on where these provisions are discussed in the Fuel Streamlining rule and provides the citation for the regulatory text, main focus is on the procedures as the apply to mandatory RFG areas.

Streamlined Procedures for Relaxing the Federal 7.8 psi RVP Standard

This page discusses the new streamlined process that a state would use if it is seeking to have EPA relax the summertime Reid Vapor Pressure standard from 7.8 psi to 9.0 psi.

Heavy-duty Greenhouse Gas “Phase 3” for Model Years 2027 and Later - Notice of Proposed Rulemaking

EPA proposes to set new, more ambitious emissions standards for heavy-duty vehicles for model year (MY) 2027 and later.

Light- and Medium-Duty Proposed Standards for Model Years 2027 and Later

EPA proposes to set new, more ambitious emissions standards for light- and medium-duty vehicles for model year (MY) 2027 and later.

Compliance Activity Reports for Vehicles and Engines

EPA uses a variety of testing and reporting programs to monitor compliance with emissions regulations.

CSV Import Template for Heavy-Duty Vehicle GHG Averaging, Banking, and Trading (ABT)

Template for year-end reports under the Heavy-Duty Tractors and Vocational Vehicles greenhouse gas (GHG) ABT.

Guidance to Parties Submitting Round-Robin Data to Support Requests for Approval of Alternate Non-VCSB Test Methods

This guidance is for parties to submit accuracy and precision information for determining compliance for non-VCSB test methods.

System Documentation for Nonroad Compression-Ignition (NRCI) Engines

Use these files for the NRCI module in EV-CIS.

Manufacturer-Run In-Use Testing Program Data for Heavy-Duty Diesel Engines – Test Order Year 2015

This page provides manufacturer-run in-use testing program data from heavy-duty diesel engine manufacturers in compliance with 40 CFR 86 Subpart T for Test Year 2015.

Final Rule: One National Program on Federal Preemption of State Fuel Economy Standards

EPA and U.S. Department of Transportation finalize One National Program Rule on Federal Preemption of State Fuel Economy Standards.

California Waiver Requests for Heavy-Duty Vehicle Emission Regulations

EPA issues a decision that grants two waivers of preemption regarding four California Air Resource Board (CARB) regulations related to California’s heavy-duty vehicle and engine emission standards.

Regulations for Emissions from Vehicles and Engines

Regulations for smog, soot and toxic pollution from vehicles and engines.

Basic Information on Fuel Economy Labeling

Basic fuel economy information about the fuel economy labels (window stickers) that appear on cars and light trucks.

Wyoming Sanitary Survey Form

Sanitary survey form to be used for Wyoming ground water and/or surface water systems.

Sanitary Surveys and Significant Deficiencies Training Presentations

Sanitary Surveys and Significant Deficiencies Training Presentation