National Emission Standards for Hazardous Air Pollutants for Polyvinyl Chloride and Copolymers Production

This action promulgates national emission standards for hazardous air pollutants (NESHAP) for the Polyvinyl Chloride (PVC) and Copolymers Production source category. These NESHAP require that PVC and copolymers production facilities, which already must comply with the existing Vinyl Chloride NESHAP, continue to comply with that existing NESHAP. This rule reflects EPA's determination that the hazardous air pollutants (HAP) control level resulting from compliance with the existing Vinyl Chloride NESHAP already reflects the application of maximum achievable control technology (MACT) and, thus, meets the requirements of section 112(d) of the Clean Air Act (CAA), except for equipment leaks at new sources, for the PVC and Copolymers Production source category. For equipment leaks, new sources must comply with the most current technology standards in the Generic MACT rule. By requiring compliance with the Vinyl Chloride NESHAP, the EPA is promoting regulatory consistency and eliminating the costs that would be incurred by enforcing a new set of standards that likely would result in no additional HAP emissions reductions.