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 Leather Finishing Operations (hereafter referred to as the Leather Finishing Operations NESHAP) was proposed on October 2, 2000, promulgated on February 27, 2002, and most recently amended on February 7, 2005. The NESHAP is codified at 40 CFR Part 63, Subpart TTTT. This supporting statement addresses information collection activities that will be imposed by the Leather Finishing Operations NESHAP, including both activities for which the burden has previously been approved under OMB Control No. 2060-0478 and activities added based on the residual risk and technology review (RTR) required under the Clean Air Act (CAA). These information collection activities are required to assure compliance with 40 CFR Part 63, Subpart TTTT. The NESHAP applies to each existing, reconstructed, and new leather finishing operation that is a major source of hazardous air pollutant (HAP) emissions, or is collocated with other sources that are individually or collectively a major source of HAP emissions. A major source emits or has the potential to emit any single HAP at the rate of 10 tons (9.07 megagrams) or more per year, or any combination of HAP at a rate of 25 tons (22.68 megagrams) or more per year. New facilities include those that commenced construction, or reconstruction after the date of proposal, October 2, 2000. This NESHAP limits emissions of total HAP for the collection of all equipment and activities used for the multistage application of finishing materials (dyes, pigments, film-forming materials, and performance modifiers dissolved or suspended in liquid carriers) to adjust and improve the physical and aesthetic characteristics of the leather surface. As part of the RTR for the Leather Finishing Operations NESHAP, the EPA added electronic submittal of performance tests, revised records and reports if a control device is used, and clarified and corrected existing rule text, including removing provisions related to malfunctions to clarify that affected facilities are subject to the emission standards at all times. The remaining portions of the NESHAP remain unchanged.

The latest form for National Emission Standards for Hazardous Air Pollutants: Leather Finishing Operations Residual Risk and Technology Review (Renewal) expires 2022-02-28 and can be found here.