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

Open 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) 2.6 0.5
2. Upholstery Leather (<4 grams add-on/square feet) 6.8 2.5
3. Water-resistant (≥5,000 Maeser Flexes)/Specialty Leather 5.6 4.9
4. Nonwater-resistant Leather (<5,000 Maeser Flexes) 3.7 2.1

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