part_subject: "STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED)"
subpart_code: "A"
subpart_subject: "AAA—Standards of Performance for Small Municipal Waste Combustion Units for Which Construction is Commenced After August 30, 1999 or for Which Modification or Reconstruction is Commenced After June 6, 2001"
section_number: "60.1045"
section_subject: "Are there different subcategories of small municipal waste combustion units within this subpart?"
cfr_reference: "40 CFR 60.1045"
title_name: "Title 40"
title_subject: "Protection of Environment"
parts_covered: "Part 60 (§ 60.500 to end of part 60 sections)"
revised_date: "Revised as of July 1, 2019"
publication_date: "As of July 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
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(a)Yes, this subpart subcategorizes small municipal waste combustion units into two groups based on the aggregate capacity of the municipal waste combustion plant as follows:
(1)Class I Units. Class I units are small municipal waste combustion units that are located at municipal waste combustion plants with an aggregate plant combustion capacity greater than 250 tons per day of municipal solid waste. (See the definition of “municipal waste combustion plant capacity” in § 60.1465 for specification of which units at a plant are included in the aggregate capacity calculation.)
(2)Class II Units. Class II units are small municipal waste combustion units that are located at municipal waste combustion plants with an aggregate plant combustion capacity less than or equal to 250 tons per day of municipal solid waste. (See the definition of “municipal waste combustion plant capacity” in § 60.1465 for specification of which units at a plant are included in the aggregate capacity calculation.)
(b)The requirements for Class I and Class II units are identical except for two items:
(1)Class I units have a nitrogen oxides emission limit. Class II units do not have a nitrogen oxides emission limit (see table 1 of this subpart). Additionally, Class I units have continuous emission monitoring, recordkeeping, and reporting requirements for nitrogen oxides.
(2)Class II units are eligible for the reduced testing option provided in § 60.1305.