National Emission Standards for Hazardous Air Pollutants: Leather Finishing Operations Residual Risk and Technology Review (Renewal)

The National Emission Standards for Hazardous Air Pollutants (NESHAP) for Surface Coating of Metal Coil (40 CFR Part 63, Subpart SSSS) were promulgated on June 10, 2002, and most recently amended on February 25, 2020. These regulations apply to existing facilities and new facilities that are major sources of hazardous air pollutants (HAP) at which a coil coating line is operated. A coil coating line is a process in which special equipment is used to apply an organic coating to the surface of metal coils; the affected source at each plant site is the collection of all coil coating lines at the site. The provisions of this Subpart do not apply to coil coating lines that are part of research or laboratory equipment or coil coating lines on which at least 85 percent of the metal coil coated, based on surface area, is less than 0.15 millimeters (0.006 inches) thick, unless the coating line is controlled by a common control device. New facilities include those that commenced construction or reconstruction after the date of proposal. This information is being collected to assure compliance with 40 CFR Part 63, Subpart SSSS.

The latest form for National Emission Standards for Hazardous Air Pollutants: Leather Finishing Operations Residual Risk and Technology Review (Renewal) expires 2028-08-31 and can be found here.