Laws & Regulations

EPA Temporarily Waives Some Requirements under New Confidential Business Information Procedures Rule

The U.S. EPA is waiving some of the reporting requirements under the final Confidential Business Information (CBI) Claims Under the Toxic Substances Control Act (TSCA) rule until October 16, 2023.

National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters; Proposed Amendments

proposed rule and fact sheet for boiler MACT amendment

Polymeric Coating of Supporting Substrates Facilities: New Source Performance Standards (NSPS)

Learn more about the New Source Performance Standards (NSPS) rule for polymeric coating by reading the rule summary, rule history and the code of federal regulations subpart. Information on related rules is also on this page.

Primary Copper Smelting: New Source Performance Standards

Includes rule history, rule summary and Federal Register citations.

National Emission Standards for Hazardous Air Pollutants (NESHAP) from the Portland Cement Manufacturing Industry Subpart LLL Rule Guidance

This Spring 2016 document is intended for the use of EPA staff, State and Local regulatory agencies and their staff, and industry plant managers for the NESHAP for the Portland Cement Manufacturing Industry.

New Source Performance Standards—Appendices

The attached letters are EPA’s response to questions raised by API and AF&PM regarding implementation of the December 2015 Refinery Sector Rule.

Petroleum Refinery Regulations for Flaring Events

The attached letters are EPA’s response to questions raised by API and AF&PM regarding implementation of the December 2015 Refinery Sector Rule.

Final Rule to Reduce Hazardous Air Emissions from Newly Built Stationary Combustion Turbines: Fact Sheet

This page contains an August 2003 fact sheet with information regarding the National Emissions Standards for Hazardous Air Pollutants (NESHAP) for Stationary Combustion Turbines. This document provides a summary of the information for this NESHAP.

Subpart DDDDD- National Emission Standards for Hazardous Air Pollutants (NESHAP) for Major Sources: Industrial, Commercial and Institutional Boilers and Process Heaters Redline Strikeout showing October 2015 Changes Compared to January 2013

This is a document that demonstrates the changes in the Industrial, Commercial, and Institutional Boilers and Process Heaters: (NESHAP for Major Sources, from the revised October 2015 to the January 2013 version of the rule.

Major Source Boiler Maximum Achievable Control Technology (MACT) Webinar: Overview of Requirements

EPA held a webinar on November 21, 2013 to help with understanding EPA's Major Source Boiler Maximum Achievable Control Technology (MACT) Rule.

Fact Sheet - Taconite Iron Ore Processing: National Emission Standards for Hazardous Air Pollutants (NESHAP)

This fact sheet summarizes the main points of the final rule (40 CFR 63 Subpart RRRRR) issued August 25, 2003 to emissions of toxic air pollutants from taconite iron ore processing facilities.

Fact Sheet - Refractory Products Manufacturing: National Emissions Standards for Hazardous Air Pollutants (NESHAP)

Fact sheet summarizing final rule limiting air toxics from the manufacture of refractory products.

47 FR 16582 Standards of Performance for New Stationary Sources; Phosphate Rock Plants

Federal Register notice of final rule for Standards of Performance for New Stationary Sources (NSPS) for Phosphate Rock Plants (40 CFR 60 Subpart NN).

Vermont's 2018 303(d) List Report and Related Documents

View supporting documents for Vermont's 2018 section 303(d) list of impaired waters.

Vermont's 2020 303(d) List Report and Related Documents

View supporting documents for Vermont's 2020 section 303(d) list of impaired waters.

Proposed Amendments to Air Toxics Standards for Ethylene Production

National Emission Standards for Hazardous Air Pollutants: Generic Maximum Achievable Control Technology Standards Residual Risk and Technology Review for Ethylene Production

Final National Emission Standards for Hazardous Air Pollutants: Miscellaneous Coating Manufacturing Residual Risk and Technology Review

Fact sheet for the Final National Emission Standards for Hazardous Air Pollutants: Miscellaneous Coating Manufacturing Residual Risk and Technology Review.