Surface Coating of Miscellaneous Metal Parts and Products: National Emission Standards for Hazardous Air Pollutants (NESHAP)
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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.
03/11/2020 - Final Rule (pre-publication version)
11/1/2019 - Proposed Rule
01/02/2004 – Final Rule
08/13/2002 – Proposed Rule
Fact Sheet: Final Amendments (03/11/2020)
To submit comments on the emissions risk modeling file for the proposed Risk and Technology Review Proposed Rulemaking, please use this Public Comment Review Tool(4 MB, 8/16/2019) . (Note: This is not a web-based tool. Save and unzip the files to your computer to execute.)
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
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.