Laws & Regulations

Louisiana SIP: LA 33:III Ch. 5 Section 501. SIP effective 2016-08-16 (LAd50) to 2016-09-05

LA SIP: LA 33:III Ch. 5 Section 501. SIP effective 2016-08-16 (LAd50) to 2016-09-05

Louisiana SIP: LAC 33:III Ch 21 Subchap J, 2147--Limiting Volatile Organic Compound (VOC) Emissions from Reactor Processes and Distillation Operations in Synthetic Organic Chemical manufacturing Industry (SOCMI); SIP effective 1998-02-02 (LAc74) to more..

Louisiana SIP: LAC 33:III Ch 21 Subchap J, 2147--Limiting Volatile Organic Compound (VOC) Emissions from Reactor Processes and Distillation Operations in Synthetic Organic Chemical manufacturing Industry (SOCMI); SIP effective 1998-02-02 (LAc74) more...

Louisiana SIP: LAC 33:III Ch 605. Definitions; SIP effective 2002-09-27 (LAd12) and 2015-12-07 (LAd46) to 2016-09-05

Louisiana SIP: LAC 33:III Ch 23 Subchap A, 2301 Control of Emissions from the Chemical Woodpulping Industry; SIP effective 1989-05-08 (LAc49) to 2011-08-03 (LAad34 - Revised)

Louisiana SIP: LAC 33:III Ch 607. Determination of Creditable Emission Reductions; SIP effective 2002-09-27 (LAd12) to 2015-12-06

Louisiana SIP: LAC 33:III Ch 607. Determination of Creditable Emission Reductions; SIP effective 2002-09-27 (LAd12) to to 2015-12-06

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)

Pesticides

This website provides easy access to all the pesticide-related information that is contained in various pesticide topical sites. It also includes news and meeting information, an A-Z index, and more.

Water Quality Certification for the Hess Lateral Improvement on the Southern Ute Indian Reservation

Clean Water Act §401 Water Quality Certification for a project that will convert 3.3. miles of the earthen Hess Lateral Ditch and 1.2 miles of private irrigation ditch to a buried, pressurized pipeline.

Comments Due Date: January 30, 2026
Geographic Locations: Rocky Mountains, Colorado

Nonattainment Areas for Criteria Pollutants (Green Book)

Areas of the country where air pollution levels persistently exceed the national ambient air quality standards may be designated "nonattainment." This site provides current information on nonattainment areas by state and pollutant.

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.

National Study of Nutrient Removal and Secondary Technologies

Overview of EPA research on nutrient removal at municipal wastewater treatment plants, including a national survey. Also includes links to related research and training materials on nutrient removal.

Key Developments in the Chesapeake Bay Watershed

Brief summaries of key developments regarding the Chesapeake Bay Watershed Total Maximum Daily Load (TMDL) including evaluations of progress, EPA expectations, press releases and reports. Includes links for more information on each development.

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

Chesapeake Bay Total Maximum Daily Load (TMDL)

In 2010 EPA established the Chesapeake Bay TMDL, a comprehensive "pollution diet" with accountability measures to restore clean water in the bay and local waters. It set limits for nutrients and sediment to meet water quality standards across the watershed

WIPs Jurisdiction Contacts

List of contacts for Watershed Implementation Plans

Cross-Media Electronic Reporting Rule (CROMERR)

Cross-Media Electronic Reporting Regulation (CROMERR) sets performance-based, technology-neutral standards for systems that states, tribes, and local governments use to receive electronic reports from facilities they regulate under EPA-authorized programs.

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.