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Surface Coating of Miscellaneous Metal Parts and Products: National Emission Standards for Hazardous Air Pollutants (NESHAP)

Rule Summary

This action promulgates national emission standards for hazardous air pollutants (NESHAP) for miscellaneous metal parts and products surface coating operations located at major sources of hazardous air pollutants (HAP). The final rule implements section 112(d) of the Clean Air Act (CAA) by requiring these operations to meet HAP emission standards reflecting the application of the maximum achievable control technology (MACT).

The final rule protects air quality and promotes the public health by reducing emissions of HAP from facilities in the miscellaneous metal parts and products surface coating source category. The organic HAP emitted by these operations include: xylenes, toluene, methyl ethyl ketone (MEK), phenol, cresols/cresylic acid, glycol ethers (including ethylene glycol monobutyl ether(EGBE)), styrene, methyl isobutyl ketone (MIBK), and ethyl benzene. 

Note: emissions of MEK and EGBE are included in the emissions inventory and emission reduction estimates for this source category.  MEK and EGBE have been delisted since promulgation of the final rule.  Examples of miscellaneous metal parts and products include automobile parts, extruded aluminum, heavy equipment, large trucks and buses, metal buildings, and others.  The final standards are expected to reduce nationwide organic HAP emissions from major sources in this category by approximately 48 percent.

Rule History

12/22/2006 – Proposed Rule & Direct Final Rule

04/20/2006 – National Emission Standards for Hazardous Air Pollutants (NESHAP) General Provisions Final Rule

04/26/2004 – Rule Amended by National Emission Standards for Hazardous Air Pollutants: Surface Coating of Automobiles and Light-Duty Trucks Final Rule

01/02/2004 – Final Rule

08/13/2002 – Proposed Rule

Additional Resources

Fact Sheet: Final Rule to Reduce Toxic Air Pollutants from Surface Coating of Miscellaneous Metal Parts and Products

National Emission Standards for Hazardous Air Pollutants (NESHAP) for Source Category: Miscellaneous Metal Parts and Products Surface Coating Operations: Summary of Public Comments and Responses on Proposed Rule

National Emission Standards for Hazardous Air Pollutants (NESHAP) for Source Category: Miscellaneous Metal Parts and Products Surface Coating Operations Technical Support Document

Related Rules

Control Techniques Guidelines for Miscellaneous Metal and Plastic Parts Coatings

Control Of Volatile Organic Emissions From Existing Stationary Sources: Surface Coating Of Miscellaneous Metal Parts and Products

Control of Volatile Organic Emissions from Existing Stationary Sources: Surface Coating for Insulation of Magnet Wire

Surface Coating of Metal Cans: National Emission Standards for Hazardous Air Pollutants (NESHAP)

Beverage Can Surface Coating Industry: New Source Performance Standards (NSPS)

Surface Coating of Metal Coil: National Emission Standards for Hazardous Air Pollutants (NESHAP)

Metal Coil Surface Coating: New Source Performance Standards (NSPS)

Compliance

Compliance Timeline for Surface Coating of Miscellaneous Metal Parts and Products National Emission Standards

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.