40 CFR Part 63, Table 1 — Leather Finishing HAP Emission Limits for Determining the Allowable HAP Loss
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
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) |
|---|---|
| Existingsources | Newsources |
| 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 |