Laws & Regulations

EPA-Approved Amador County Air District Regulations in the California SIP

EPA approved and compiled rules and regulations for the Amador County Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIPs).

EPA-Approved Butte County Air District Regulations in the California SIP

EPA approved and compiled rules and regulations for the Butte County Air Quality Management District (AQMD) portion of the California State Implementation Plan (SIP).

EPA-Approved Antelope Valley Air District Regulations in the California SIP

EPA approved and compiled rules and regulations for the Antelope Valley Air Quality Management District (AVAQMD) portion of the California State Implementation Plan (SIP).

Approval of Moderate Plan Elements for Idaho portion of Logan UT-ID Area

Approval of moderate plan elements for the Idaho portion of the Logan Utah-Idaho 2006 24-hour fine particulate matter standard nonattainment area

EPA-Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Hawai'i SIP

EPA approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Hawai'i State Implementation Plan (SIP). EPA's Pacific Southwest Office maintains these tables and will update them to reflect any changes.

EPA allocates a total of $58 million to Tennessee for water infrastructure resiliency in aftermath of Hurricane Helene

Release Date: September 30, 2025

EPA-Approved Regulations in the Hawai'i SIP

EPA Approved Air Regulations in the Hawai'i State Implementation Plan (SIP).

EPA-Approved Nevada-Wide Air Quality Statutes and Regulations

Current EPA-approved air quality implementation plans (SIPs, FIPs, TIPs) in Nevada.

EPA-Approved Yolo-Solano Air District Regulations in the California SIP

EPA approved and compiled rules and regulations for the Yolo-Solano Air Quality Management District (AQMD) portion of the California State Implementation Plan (SIP).

EPA-Approved Sacramento Metropolitan Air District Regulations in the California SIP

EPA approved and compiled rules and regulations for the Sacramento Metropolitan Air Quality Management District (AQMD) portion of the California State Implementation Plan (SIP).

Alaska NPDES Permits

NPDES water permits issued in Alaska.

Petition Status for Technology Transitions

Information on Technology Transition Petitions under the AIM Act - how to submit petitions, and information and status on petitions that EPA has received.

Petitions for Reconsideration and Judicial Review of the 2023 Technology Transitions Rule

This page lists petitions for reconsideration of specific provisions of the final rule titled “Restrictions on the Use of Certain Hydrofluorocarbons Under the America Innovation and Manufacturing Act of 2020.”

Protecting Endangered Species from Pesticides

EPA's Endangered Species Protection Program helps promote recovery of listed species. The ESPP determines if pesticide use in a geographic area may affect any listed species. Find needed limits on pesticide use in Endangered Species Protection Bulletins.