Laws & Regulations

2024 Updates: Residual Designation Authority (RDA) Activities Underway for the Charles, Neponset, and Mystic River Watersheds

2024 Updates for Residual Designation Authority (RDA) Activities Underway for the Charles, Neponset, and Mystic River Watersheds

Texas SIP: 30 TAC 115.120-115.129: Vent Gas Control, SIP effective as of September 14, 2023 (TXd239)

Texas SIP: 30 TAC 115.110-115.119

2023 Updates: Residual Designation Authority (RDA) Activities Underway for the Charles, Neponset, and Mystic River Watersheds

2023 Updates for Residual Designation Authority (RDA) Activities Underway for the Charles, Neponset, and Mystic River Watersheds

2025 Updates: Residual Designation Authority (RDA) Activities Underway for the Charles, Neponset, and Mystic River Watersheds

2025 Updates for Residual Designation Authority (RDA) Activities Underway for the Charles, Neponset, and Mystic River Watersheds

Texas SIP: 30 TAC 117.451-117.458: Nitric Acid Manufacturing - General; SIP effective 2001.04.16

Recent Activities for the New Chemicals Program under the Toxic Substances Control Act

This page lists recent announcements concerning the EPA's New Chemicals Program going back to July 2012.

Clean Water Act Section 404(g) Tribal and State Assumption

Info for Tribes and states on the requirements for, administration of, and EPA oversight of a Tribal or State Section 404 program. The site is a resource for the audiences in Tribes or states with assumed programs.

Long Creek Residual Designation

Information and documents pertaining to the Long Creek Residual Designation for NPDES permitting in Maine.

Federal Facilities Inspections: A Guide to EPA's Access and Inspection Authorities

This brochure outlines the legal authority for EPA, or one of its authorized representatives, to inspect a federal facility for compliance with environmental laws. It also identifies the federal, state, or tribal inspectors who may conduct inspections.

Great Lakes Initiative (GLI) Clearinghouse

The Great Lakes Initiative Toxicity Clearinghouse is a central location for information on criteria, toxicity data, exposure parameters and other supporting documents used in developing water quality standards in the Great Lakes watershed.

Missouri SIP: Chapter 6 - Air Quality Standards, Definitions, Sampling and Reference Methods, and Air Pollution Control Regulations for the State of Missouri

EPA Approved Missouri Regulations - 40 CFR 52.1320

Water Quality Standards Regulations: Nevada

Information related to Water Quality Standards for Nevada.

Primary Enforcement Authority for the Underground Injection Control Program

This webpage present information needed for UIC primacy applications and identifies approved programs.

Administrative Record for the Draft CII GP

Documents Collection of Administrative Record for the Draft CII GP

Managing Stormwater and Dust at Demolition Sites

Learn how to manage stormwater and dust at demolition sites, including developing a stormwater solution prevention plan, best practices for erosion, runoff and sediment control to reduce environmental impacts and comply with environmental regulations.