Regulations last checked for updates: May 17, 2024

Title 40 - Protection of Environment last revised: May 15, 2024
Appendix - Table 2 to Subpart LL of Part 63—Potline POM Limits for Emission Averaging
Type Semiannual POM limit (lb/ton) [for given number of potlines]
2 lines 3 lines 4 lines 5 lines 6 lines 7 lines 8 lines
CWPB110.90.90.90.80.80.8
CWPB211.611.210.810.810.410.410.4
CWPB32.52.42.42.32.32.32.3
SWPB14.813.813.813.813.813.813.8
VSS21.71.61.51.51.41.41.4
[80 FR 62424, Oct. 15, 2015]
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.