Learn the Issues

Request for AIS Waiver for 10-Inch and 12-Inch Globe Valves for North River WWTP, New York, New York (CWSRF)

AIS waiver request.

54 and 78-Inch Diameter Stainless Steel Closure Couplings for Winston Salem, North Carolina

AIS waiver request received by EPA.

Public Interest Waiver of American Iron and Steel Requirements to San Francisco, California for 16-inch TR Flex Pipe Fittings

Approval of AIS waiver request.

Project Waiver of AIS Requirements for a 3-inch Pressure Reducing Valve for a Gas Digester for the City of Winston-Salem, North Carolina (CWSRF)

AIS waiver request approval

Project Waiver of AIS Requirements for Flex-ring Fittings for the City of Columbus, Ohio (DWSRF)

AIS waiver request approval.

Request for AIS Waiver for Restrained Joint Fittings for San Francisco Public Utilities Commission, California (CWSRF)

AIS waiver request

Request for AIS Waiver for Pressure Reducing Valve for the Muddy Creek Wastewater Treatment Plant, North Carolina (CWSRF)

AIS waiver request.

Request for AIS Waiver for Plunger Valves for Great Lakes Water Authority, Michigan (DWSRF)

AIS waiver request.

5-Inch Butterfly Valves for Sequim, Washington

AIS waiver request.

Application of American Iron and Steel Requirements for Drinking Water State Revolving Fund Projects for Fiscal Years 2019 Through 2023

On October 23, 2018, the President signed the "America's Water Infrastructure Act or 2018'' (AWIA), which includes several updates and revisions to the Safe Drinking Water Act (SDWA), including the Drinking Water State Revolving Fund (DWSRF) provisions.

Project Waiver of AIS Requirements for Ball Valves for Baltimore City, Maryland (CWSRF)

AIS waiver request approval

Application of American Iron and Steel Requirements for Drinking Water State Revolving Fund Projects Under the Continuing Appropriation Signed September 8, 2017

Application of American Iron and Steel Requirements for Drinking Water State Revolving Fund Projects Under the Continuing Appropriation Signed September 8, 2017.

Lunch and Learn Webinar: AIS National Minor Components Waiver

Webinar presentation: Lunch and Learn Webinar: AIS National Minor Components Waiver

Project Waiver of AIS Requirements for Combination Air and Vacuum Relief Valves for New Jersey American Water (Lakewood Township), New Jersey (DWSRF)

AIS waiver request approval

Request for AIS Waiver for 54-inch and 66-inch Triple-Offset, Tilting Disc Check Valves for Sacramento, California (CWSRF)

AIS waiver request.

Public Interest Waiver of American Iron and Steel Requirements to the City of Sequim, Washington for Butterfly Valves

AIS approved waiver request.

EPA Releases Final Guidance on Efficacy Testing of Antimicrobial Pesticides Against Legionella Pneumophila in Cooling Tower Water

EPA has appointed a new chair and two new members and reappointed two current members to serve on the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) Scientific Advisory Panel (SAP).

TSCA Occupational Exposure Workshops

TSCA Occupational Exposure Workshops

Environmental Information by Location

Find environmental information in your location, by state, by zip code, or by geographic region.

Revised Hazard Categories for EPCRA 311 / 312 Reporting

On March 26 2012, the Occupational Safety and Health Administration (OSHA) revised its Hazard Communication Standard (HCS) by adopting the United Nations Globally Harmonization System of Classification and Labeling of Chemicals (GHS). Based on the new classification criteria that OSHA adopted, EPA revised the existing hazard categories for hazardous chemical…

• Last published: September 16, 2025