Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart RRRRR > Appendix - Table 2 to Subpart RRRRR of Part 63—Mercury Emission Limits for Indurating Furnaces

Regulations last checked for updates: Feb 22, 2025

Title 40 - Protection of Environment last revised: Nov 22, 2025

Appendix - Table 2 to Subpart RRRRR of Part 63—Mercury Emission Limits for Indurating Furnaces

Table 2 to Subpart RRRRR of Part 63—Mercury Emission Limits for Indurating Furnaces

[As required in § 63.9590(a), you must comply with each applicable mercury emission limit in the following table:]

For . . .	You must meet the following emission limits . . .
1. Indurating furnaces constructed or reconstructed before May 15, 2023	Either: (1) Mercury emissions from each furnace must not exceed 1.4 × 10−5 lb/LT of taconite pellets produced, or (2) Production-weighted average mercury emissions for a group of indurating furnaces, calculated according to Equation 6 in § 63.9634(m)(3), must not exceed 1.3 × 10−5 lb/LT.
2. Indurating furnaces constructed or reconstructed on or after May 15, 2023	Mercury emissions from each furnace must not exceed 2.6 × 10−6 lb/LT.

[89 FR 16438, Mar. 6, 2024]

authority: 42 U.S.C. 7401

source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.