Laws & Regulations

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Ohio SIP

EPA Approved Ohio Source-Specific Requirements

EPA Approved Regulations in the Ohio SIP

Approved Air Quality Implementation Plans in Ohio

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Minnesota SIP

EPA Approved Minnesota Source-Specific Requirements

EPA Approved Statutes and Regulations in the Minnesota SIP

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Michigan SIP

EPA Approved Michigan Source-Specific Requirements

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Indiana SIP

EPA Approved Indiana Source-Specific Requirements

EPA Approved Indiana Source-Specific Requirements in the Indiana SIP

EPA Approved Regulations and Statutes in the Indiana SIP

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Illinois SIP

EPA Approved Statutes and Regulations in the Illinois SIP

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

Lesson 7: From Requirements to Solutions

Lesson 7 of CROMERR 101 will provide another perspective on the requirements—it will provide examples of different approaches for meeting CROMERR requirements.

Email Subscriptions for Notifications about New Litigation

How to subscribe to EPA messages about new litigation, from EPA's Office of General Counsel.

Frequently Asked Questions about the Use of Alternative Dispute Resolution in Resolving Title VI Complaints

This page will have FAQ's for Alternative Dispute Resolution Titlle VI complaints

Particle Pollution Designations Memorandum and Data for the 2024 Revised Annual PM2.5 NAAQS

Particle pollution designations guidance

Support for Fish and Shellfish Advisory Programs

The U.S. Environmental Protection Agency publishes a variety of guidance documents for state, local, regional and Tribal environmental health officials to help inform their fish advisories and safe eating guidelines.

Endangered Species Case - Washington Toxics Coalition v. EPA

This Web page provides information on the Washington Toxics Coalition v. EPA case, related to protection of Pacific salmon and steelhead, and links to the biological opinions issued by the NMFS and EPA’s responses.

Endangered Species Case – Northwest Center for Alternatives to Pesticides v. EPA

EPA is reinstating streamside no-spray buffer zones to protect endangered or threatened Pacific salmon and steelhead in California, Oregon and Washington State, which were originally established in prior litigation brought against EPA by WTC and others.