Site Feedback

Title 40

Displaying title 40, up to date as of 6/11/2026. Title 40 was last amended 6/11/2026.
eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

Learn more about the eCFR, its status, and the editorial process.

Table 3 to Subpart LL of Part 63—Potline PM Limits for Emission Averaging

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 5.0 5.0 5.0
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]