Laws & Regulations

Florida State Statute 112.3143(4) - Voting Conflicts

Full and Public Disclosure of Financial Interests as it relates to the Florida Air Pollution Control Regulations - Florida State Statute 112.3144 as of 03/17/26

Florida State Statute 112.3144 - Full and Public Disclosure of Financial Interests

Full and Public Disclosure of Financial Interests as it relates to the Florida Air Pollution Control Regulations as of 03/17/26 - Florida State Statute 112.3144

Kansas SIP: EPA Approved Kansas Regulations

EPA Approved Regulations in the Kansas SIP

Missouri SIP: EPA Approved Missouri Source Specific Requirements 40 CFR 52.1320(d)

EPA Approved Missouri Source Specific Requirements 40 CFR 52.820(d)

Proposed Rulemaking: Amendments to Regulatory Requirements for State Regional Haze Plans

Preamble and rule language of proposed revisions to the RHR.

Search Tools by Topic

System Data Searches allows you to go directly to the System Search that interests you.

Guidance for Air Permit Document Submittal via email For Louisiana Sources

Provides guidance for persons wishing to submit air permit related files to R6 using the R6AirPermitsLa@epa.gov email box.

Current Regulations and Regulatory Actions

This site will provide basic information on clean air permitting under the title V operating permits program, provide access to state and regional permitting programs, and maintain access to proposed and final regulatory requirements.

Control of Air Pollution from Airplanes and Airplane Engines: GHG Emission Standards and Test Procedures - Final Rulemaking

EPA finalizes rulemaking for control of Air Pollution from Airplanes and Airplane Engines: GHG Emission Standards and Test Procedures

Ethanol Waivers (E15 and E10)

Learn more E15 and E10 waivers.

Renewable Fuel Petition Review Process

This page discusses the typical steps in the RFS pathway petition process and how they vary for different types of petitions.

Statutes for Renewable Fuel Standard Program

A number of laws serve as EPA's foundation for protecting the environment and public health. In addition, a number of Presidential Executive Orders (EOs) play a central role in EPA's activities.

EPA Approved Regulations in the Pennsylvania SIP

Pennsylvania SIP, Chapter 126, Section 126.401 thru 126-451

Vermont's 2024 303(d) List Report and Related Documents

View supporting documents for Vermont's 2024 section 303(d) list of impaired waters.

Commercial and Industrial Solid Waste Incineration Units (CISWI): New Source Performance Standards (NSPS) and Emission Guidelines (EG) for Existing Sources

Learn about the New Source Performance Standards (NSPS) for commercial and industrial solid waste incineration (CISWI) units including emission guidelines and compliance times for the rule. Read the rule history and summary, and find supporting documents

EPA Response to RFC 23002 - Toxic Substances Control Act (TSCA) Risk Evaluation for 1,4-Dioxane

This page contains the Agency's response to RFC 23002 - Toxic Substances Control Act (TSCA) Risk Evaluation for 1,4-Dioxane

Guidance on the Development of Modeled Emission Rates for Precursors (MERPs) as a Tier 1 Demonstration Tool for Ozone and PM2.5 under the PSD Permitting Program

This document is part of the NSR Policy and Guidance Database