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Electronic Code of Federal Regulations

e-CFR data is current as of December 5, 2019

Title 40Chapter ISubchapter CPart 63Subpart TTTT → Appendix


Title 40: Protection of Environment
PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES (CONTINUED)
Subpart TTTT—National Emission Standards for Hazardous Air Pollutants for Leather Finishing Operations


Table 1 to Subpart TTTT of Part 63—Leather Finishing HAP Emission Limits for Determining the Allowable HAP Loss

As required in §§63.5305 and 63.5340(b), you must meet the appropriate emission limits in the following table:

Type of Leather Product Process Operation HAP Emission Limit (pounds of HAP loss per 1,000 square feet of leather processed)
Existing
sources
New
sources
1. Upholstery Leather (≥4 grams add-on/square feet)2.60.5
2. Upholstery Leather (<4 grams add-on/square feet)6.82.5
3. Water-resistant (≥5,000 Maeser Flexes)/Specialty Leather5.64.9
4. Nonwater-resistant Leather (<5,000 Maeser Flexes)3.72.1

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