Laws & Regulations

Texas SIP: 30 TAC Chapter 111.[B] VISIBLE EMISSIONS; SIP effective 06/07/96 to May 28, 2009

Texas SIP: 30 TAC Chapter 111.[B] VISIBLE EMISSIONS; SIP effective 06/07/96 until May 28, 2009

Louisiana SIP: LAC 33:III Ch 21 Subchap L, 2151--Limiting Volatile Organic Compound Emissions from Cleanup Solvent Processing; SIP effective 1998-02-02 (LAc74) to 2011-08-03 (LAc34 - Revised)

Identifying Invasive Species under the National Estuary Program

Stories of addressing invasive species within estuaries.

Learn about Dioxin

Learn about what dioxin looks like, where is comes from, applicable laws and the a timeline of EPA's dioxin reports and announcements.

EPA's Principles of Scientific Integrity

Outline of the EPA's scientific integrity policy.

Puerto Rico Particulate Matter (PM2.5 and PM10) Study

Between June 2023 and March 2024, EPA conducted air monitoring study in Guayama and Salinas, Puerto Rico. The study was conducted with community input on where to place the equipment. EPA used real-time sensors to measure particulate matter or dust with a

WIPs Jurisdiction Contacts

List of contacts for Watershed Implementation Plans

General Information, Contacts & Training for Transportation & Conformity

Resources are for air quality and transportation government and community leaders. Information on the transportation conformity program and how it's implemented is provided here.

Final Rule for Control of Air Pollution From Aircraft Engines; Emission Standards and Test Procedures

This web page describes the EPA proposed rulemaking for particulate matter emission standards that apply to civil aircraft engines.

Fiat Chrysler Automobiles – Voluntary Recall

This recall is the result of in-use emissions investigations conducted by EPA and in-use testing conducted by FCA as required by EPA regulations.

EPA Emission Standards Regulations

This web page provides links with information related to the information found in the Federal Emission Standards Reference Guide.

Gasoline Sulfur

The gasoline sulfur standard will enable more stringent vehicle emissions standards and will make emissions control systems more effective.

Regulations for Emissions from Motorcycles (Light-duty)

This page provides links to regulations for controlling emissions from motorcycles.

Statutes and Regulations under Renewable Fuel Standard

Statutes and regulations for renewable fuel standard programs.

Other Requests under Renewable Fuel Standard

Outside parties can submit a request to EPA to waive the standards, provide reconsideration of a specific requirement or approve of an alternative compliance approach using one of the mechanisms listed below.

Renewable Identification Numbers (RINs) under the Renewable Fuel Standard Program

If you have questions on what RIN is, how RINs are traded, what types of RIN transactions include, and how EPA records all transactions involving RINs, you are in the right place.

RINs Generated Transactions

This report will allow each user to choose which data to add in their report.

Applying or Implementing Lead (Pb) Standards

Learn how a state implementation plan (SIP) sets goals and requirements that help a state's areas attain and maintain the lead standard requirements.

Particulate Matter (PM) Implementation Regulatory Actions

learn more about particulate matter implementation for the NAAQS for PM2.5 and PM

Determinations of Attainment, Failure to Attain and Reclassifications for the 2006 24-Hour PM Standards

Determinations of attainment and failure to attain for 11 24-hour PM2.5 nonattainment areas.