On this page:

• Rule Summary
• Rule History
• Additional Resources

Rule Summary

The primary hazardous air pollutants (HAP) emitted by these sources include xylenes, methylene chloride, toluene, ethyl benzene, chloroform, tetrachloroethylene, benzene, and naphthalene.

Each of these HAP can cause adverse health effects provided sufficient exposure.

Rule History

You will need Adobe Reader to view some of the files in this section. See EPA’s About PDF page to learn more.10/26/2017 - Final Amendments; Risk and Technology Review 

2/22/2017 - Extension of Public Comment Period (PDF)

12/8/2016 – Proposed Amendments; Risk and Technology Review (PDF)

10/21/2002 – Final Rule; Amendments (PDF)

03/22/2002 – Proposed Amendments (PDF)

03/23/2001 – Final Rule; Corrections (PDF)

10/26/1999 – Final Rule (PDF)

12/01/1998 – Proposed Rule (PDF)

Additional Resources

You will need Adobe Reader to view some of the files in this section. See EPA’s About PDF page to learn more.Publicly Owned Treatment Works (POTW): Final Risk and Technology Review Fact Sheet

Publicly Owned Treatment Works (POTW): Final Air Toxics Rule Fact Sheets

National Emission Standards for Hazardous Air Pollutants (NESHAP): Publicly Owned Treatment Works - Background Information for Final Standards Summary of Public Comments and Responses (PDF)