40 CFR Part 63, Table 3
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| Type | Semiannual PM limit (lb/ton) [for given number of potlines] |
|---|---|
| 2 lines | 3 lines | 4 lines | 5 lines | 6 lines | 7 lines | 8 lines |
| CWPB1 | 6.1 | 6.1 | 5.3 | 5.3 | 5 | 5 | 5 |
| CWPB2 | 10.6 | 10.3 | 9.9 | 9.9 | 9.5 | 9.5 | 9.5 |
| CWPB3 | 18.4 | 17.6 | 17.6 | 16.8 | 16.8 | 16.8 | 16.8 |
| SWPB | 4.3 | 3.9 | 3.9 | 3.7 | 3.7 | 3.7 | 3.7 |
| VSS2 | 25 | 24.1 | 24.1 | 23.1 | 23.1 | 23.1 | 23.1 |
[80 FR 62425, Oct. 15, 2015]