Laws & Regulations

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.

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.

Basic Information on Fuel Economy Labeling

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

Sanitary Surveys and Significant Deficiencies Training Presentations

Sanitary Surveys and Significant Deficiencies Training Presentation

Ozone (O3) Air Quality Standards - Documents from Review Completed in 2008 (including documents related to reconsideration)

United States Environmental Protection Agency Grants and Fellowship Information

Grants and Fellowship Information for a wide array of Grant Programs.

UIC Permit: PAS2D030BCLE

Sammy-Mar underground injection control permit

CWA Section 401 Regulatory Requirements

Clean Water Act Section 401 rulemaking effort

Interim Policy to Preserve Separated Personnel’s Electronically Stored Information Subject to Litigation Holds

This Interim Policy is designed to ensure the preservation of electronically stored information (ESI), created or received by EPA employees, contractors or grantees with user and email accounts on EPA networks, who have ended their employment with EPA.

Fuel Economy Label Updates

EPA requires auto manufacturers to revise MPG (miles per gallon) values on fuel economy labels (window stickers) if relevant information becomes available that show that values are too high.

Quick Reference Guides on Class VI Program Implementation

This webpage presents links to several quick reference guides for Class VI program implementation considerations intended for UIC program directors.