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

Mercury Emission Limits for Indurating Furnaces

  1. CFR
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  3. Title 40
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  5. Chapter I
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  7. Part 63
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  9. Subpart RRRRR
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  11. Subject Group Other Requirements and Information
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  13. Appendix Table 2 to Subpart RRRRR of Part 63
CorpusDaily eCFR
Displayed edition2026-04-27
Last updated2026-04-27

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, 2023Either:

(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, 2023Mercury emissions from each furnace must not exceed 2.6 × 10−6 lb/LT.

[89 FR 16438, Mar. 6, 2024]