An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Surface Coating of Large Appliances: National Emission Standards for Hazardous Air Pollutants (NESHAP)

On this page:

Rule Summary

These final standards implement section 112(d) of the Clean Air Act (CAA) which requires the Administrator to regulate emissions of hazardous air pollutants (HAP) listed in section 112(b) of the CAA. The intent of the standards is to protect the public by requiring new and existing major sources to control emissions to the level attainable by implementing the maximum achievable control technology (MACT).

Sources typically emit the following HAP: glycol ethers, methylene diphenyl diisocyanate, methyl ethyl ketone, toluene, and xylene. These compounds account for over 80 percent of the nationwide HAP emissions from this source category. These pollutants can cause reversible or irreversible toxic effects to people following exposure.

Rule History

03/11/2020 - Final Rule (pre-publication version)

03/15/2019 - Final Risk and Technology Review

09/12/2018 - Proposed Risk and Technology Review

07/23/2002 – Final Rule

12/22/2000 – Proposed Rule

Additional Resources

Fact Sheet: Final Amendments (03/11/2020)

A draft version of the Surface Coatings of Large Appliances  §63.4121(c) Semiannual compliance report CEDRI Spreadsheet Template is available for comment.  The Spreadsheet will be submitted using EPA’s Compliance and Emissions Data Reporting Interface (CEDRI) after proposal is finalized. All comments/questions for the spreadsheet template should be submitted to the docket (identified by Docket ID No. EPA -HQ-OAR-2003-0014) using the Federal eRulemaking Portal:

Fact Sheets for Surface Coating of Large Appliances; Printing, Coating, and Dyeing of Fabrics and Other Textiles; and Surface Coating of Metal Furniture Residual Risk and Technology Review Actions

National Emission Standards For Hazardous Air Pollutants (NESHAP) For Source Category Large Appliances Surface Coating Operations Background Information For Promulgated Standards

National Emission Standards For Hazardous Air Pollutants (NESHAP) For Source Category Large Appliances Surface Coating Operations, Background Information For Proposed Standards

Final Rule to Reduce Toxic Air Emissions from Facilities that Apply Surface Coatings to Large Facilities Fact Sheet

Related Rules

Large Appliances (Industrial Surface Coating): New Source Performance Standards (NSPS)

Control Techniques Guidelines for Large Appliance Coatings


Compliance Timeline: Surface Coating of Large Appliances

Applicability Determination Index (ADI).  The ADI is maintained by EPA's Office of Enforcement and Compliance Assurance (OECA) and provides a data base of memoranda dealing with applicability issues.  The database is searchable by Subpart.