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42 U.S.C. 7401 et seq.
57 FR 61992, Dec. 29, 1992, unless otherwise noted.
69 FR 416, Jan. 5, 2004, unless otherwise noted.
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Subscribe to: 40 CFR Part 63 Subpart AAAAA - What This Subpart Covers
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This subpart establishes national emission standards for hazardous air pollutants (NESHAP) for lime manufacturing plants. This subpart also establishes requirements to demonstrate initial and continuous compliance with the emission limitations.
(a) You are subject to this subpart if you own or operate a lime manufacturing plant (LMP) that is a major source, or that is located at, or is part of, a major source of hazardous air pollutant (HAP) emissions, unless the LMP is located at a kraft pulp mill, soda pulp mill, sulfite pulp mill, beet sugar manufacturing plant, or only processes sludge containing calcium carbonate from water softening processes.
(1) An LMP is an establishment engaged in the manufacture of lime product (calcium oxide, calcium oxide with magnesium oxide, or dead burned dolomite) by calcination of limestone, dolomite, shells or other calcareous substances.
(2) A major source of HAP is a plant site that emits or has the potential to emit any single HAP at a rate of 9.07 megagrams (10 tons) or more per year or any combination of HAP at a rate of 22.68 megagrams (25 tons) or more per year from all emission sources at the plant site.
(b) [Reserved]
(a) This subpart applies to each existing or new lime kiln(s) and their associated cooler(s), and processed stone handling (PSH) operations system(s) located at an LMP that is a major source.
(b) For purposes of complying with the PM emissions limitations of this subpart, a new lime kiln is a lime kiln, and (if applicable) its associated lime cooler, for which construction or reconstruction began after December 20, 2002, if you met the applicability criteria in § 63.7081 at the time you began construction or reconstruction.
(c) For the purposes of complying with the HCl, mercury, organic HAP, and D/F emissions limitations of this subpart, a new lime kiln is a lime kiln (only) for which construction or reconstruction began after January 5, 2023, if you met the applicability criteria in § 63.7081 at the time you began construction or reconstruction.
(d) A new PSH operations system is the equipment in paragraph (g) of this section, for which construction or reconstruction began after December 20, 2002, if you met the applicability criteria in § 63.7081 at the time you began construction or reconstruction.
(e) A lime kiln or PSH operations system is reconstructed if it meets the criteria for reconstruction defined in § 63.2.
(f) An existing lime kiln is any lime kiln, and (when complying with PM emissions limitations) its associated lime cooler, that does not meet the definition of a new kiln of paragraphs (b) and (c) of this section.
(g) An existing PSH operations system is any PHS operations system that does not meet the definition of a new PSH operations system in paragraph (c) of this section.
(h) A PSH operations system includes all equipment associated with PSH operations beginning at the processed stone storage bin(s) or open storage pile(s) and ending where the processed stone is fed into the kiln. It includes man-made processed stone storage bins (but not open processed stone storage piles), conveying system transfer points, bulk loading or unloading systems, screening operations, surge bins, bucket elevators, and belt conveyors. No other materials processing operations are subject to this subpart.
(i) Nuisance dust collectors on lime coolers are part of the lime materials processing operations and are not covered by this subpart.
(j) Lime hydrators are not subject to this subpart.
(k) Open material storage piles are not subject to this subpart.
[69 FR 416, Jan. 5, 2004, as amended at 89 FR 57753, July 16, 2024]
(a) If you have a new affected source, you must comply with this subpart according to paragraphs (a)(1) and (2) of this section.
(1) If you start up your affected source before January 5, 2004, you must comply with the PM emission limitations no later than January 5, 2004, and you must have completed all applicable performance tests no later than July 5, 2004, except as noted in paragraphs (g)(1) and (2) of this section.
(2) If you start up your affected source after January 5, 2004, then you must comply with the PM emission limitations for new affected sources upon startup of your affected source and you must have completed all applicable performance tests no later than 180 days after startup, except as noted in paragraphs (g)(1) and (2) of this section.
(b) If you have an existing affected source you must comply with the applicable PM emission limitations for the existing affected source, and you must have completed all applicable performance tests no later than January 5, 2007, except as noted in paragraphs (g)(1) and (2) of this section.
(c) If you start up your affected source after July 16, 2024, then you must comply with all emission limitations for new affected sources upon startup of your affected source and you must have completed all applicable performance tests no later than 180 days after startup, except as noted in paragraphs (h)(1) and (2) of this section.
(d) If you have an existing affected source you must comply with all applicable emission limitations for the existing affected source, and you must have completed all applicable performance tests no later than July 16, 2027, except as noted in paragraphs (h)(1) and (2) of this section.
(e) If you have an LMP that is an area source that increases its emissions or its potential to emit such that it becomes a major source of HAP, the deadlines specified in paragraphs (c)(1) and (2) of this section apply.
(1) New affected sources at your LMP you must be in compliance with this subpart upon startup.
(2) Existing affected sources at your LMP must be in compliance with this subpart within 3 years after your source becomes a major source of HAP.
(f) You must meet the notification requirements in § 63.7130 according to the schedule in § 63.7130 and in subpart A of this part. Some of the notifications must be submitted before you are required to comply with the emission limitations in this subpart.
(g)
(1) If your affected source commenced construction or reconstruction on or before September, 16, 2019, then the compliance date for the revised requirements promulgated at §§ 63.7090, 63.7100, 63.7112, 63.7113, 63.7121, 63.7130, 63.7131, 63.7132, 63.7140, 63.7141, 63.7142, and 63.7143 and Tables 2, 3, 4, 5, 7, 8 and 9 (except changes to the cross references to 63.6(f)(1) and (h)(1)) of 40 CFR 63, subpart AAAAA, published on July 24, 2020 is January 20, 2021.
(2) If your affected source commenced construction or reconstruction after September 16, 2019, then the compliance date for the revised requirements promulgated at §§ 63.7090, 63.7100, 63.7112, 63.7113, 63.7121, 63.7130, 63.7131, 63.7132, 63.7140, 63.7141, 63.7142, and 63.7143 and Tables 2, 3, 4, 5, 7, 8 and 9 to this subpart, published on July 24, 2020 is July 24, 2020 or the date of initial startup, whichever is later.
(h)
(1) If your affected source commenced construction or reconstruction on or before January 5, 2023, then the compliance date for HCl, mercury, total organic HAP, and D/F emissions limitations is July 16, 2027.
(2) If your affected source commenced construction or reconstruction after July 16, 2024, then the compliance date for HCl, mercury, total organic HAP, and D/F emissions limitations is January 5, 2023, or the date of initial startup, whichever is later.
[69 FR 416, Jan. 5, 2004, as amended at 85 FR 44977, July 24, 2020, 89 FR 57753, July 16, 2024; 89 FR 96108, Dec. 4, 2024]