California Code of Regulations
Title 17 - Public Health
Division 3 - Air Resources
Chapter 1 - Air Resources Board
Subchapter 7.7 - Regulation for the Reporting of Criteria Air Pollutants and Toxic Air Contaminants
Article 2 - Requirements for Calculating and Reporting Criteria Pollutant and Toxic Air Contaminant Emissions
Appendix A - to the Regulation for the Reporting of Criteria Air Pollutants and Toxic Air Contaminants

Universal Citation: 17 CA Code of Regs A
Current through Register 2024 Notice Reg. No. 38, September 20, 2024

Applicability Thresholds and Lookup Tables for Facilities Subject to Reporting Per Section 93401(a)(4)

Table A-1.

Initial Data Year by District Group and Sector Phase for Additional Applicability Facilities Subject Per 93401(a)(4) *

Initial Emissions Reporting: Data Year for Section 93401(a)(4) Facilities
District GroupSector Phase 1 only ** and 93401(a)(4)(A) and (B)Sector Phase 2 onlySector Phase 3 onlySector Phase 3B ***Ongoing Emissions Reporting: Data Year (All Reporters)
A20222024202520282026 ***
B20242026202720282028

* The initial data year is the first data year subject to reporting. For example, for District Group A, Sector Phase 1, 2022 data must be submitted during 2023. For the sector phases, for each of the initial years, only one phase is subject to reporting each year. For example, for District Group A, facilities in the Phase 1 sector categories in Table A-3 are subject to the sector-based reporting applicability for 2022 emissions data reported in 2023, but Phase 1 sources are not subject to reporting again until the 2026 data year. For 2024, only Phase 2 facilities are subject to the sector-based reporting applicability, and so on. For District Group A, all sources are subject to annual reporting beginning with 2026 data reported in 2027.

** Agricultural operation facilities that are required to submit reports pursuant to a threshold identified in section 93401(a)(4), regardless of which threshold category is exceeded, may postpone the initial year of reporting to Sector Phase 3.

*** As with the Sector Phase 3B sectors subject to reporting per Section 93401(a)(4)(C), Sector 3B sources that are subject to applicability under 93401(a)(4)(A) or (B), based on criteria pollutant emissions, must begin ongoing emissions reporting with 2028 data reported in 2029. Reporting for these facilities is not required prior to 2028 data even if other permitted processes in Sector Phases 1, 2, or 3 are present at the facility.

Table A-2.

District Group Lookup for Additional Applicability Facilities Subject Per 93401(a)(4)

District GroupDistrict
ABay Area AQMDSan Diego County APCD
Imperial County APCDSan Joaquin Valley Unified APCD
Sacramento Metropolitan AQMDSouth Coast AQMD
BAmador County APCDMojave Desert AQMD
Antelope Valley APCDMonterey Bay Air Resources District
Butte County AQMDNorth Coast Unified APCD
Calaveras County APCDNorthern Sierra AQMD
Colusa County APCDNorthern Sonoma County APCD
Eastern Kern County APCDPlacer County APCD
El Dorado County APCDSan Luis Obispo County APCD
Feather River AQMDSanta Barbara County APCD
Glenn County APCDShasta County AQMD
Great Basin Unified APCDSiskiyou County APCD
Lake County AQMDTehama County APCD
Lassen County APCDTuolumne County APCD
Mariposa County APCDVentura County APCD
Mendocino County AQMDYolo/Solano AQMD
Modoc County APCD

Table A-3. Sector Phases and Activity Level Reporting Thresholds for Additional Applicability Facilities Subject Per Section 93401(a)(4)

Sector No.Sector PhasePermitted ProcessSIC Code(s) *NAICS Code(s)*Activity Level Reporting Threshold for Permitted Process
11Metal plating, anodizing, or grinding using cadmium or chromium cadmium or chromiumAnyAnyAny activity level
21Plating, polishing, coating, engraving, and allied services, including thermal spraying, using chromium, cadmium, or nickel347x3328xx and 33991xAny activity level
31Petroleum refining and industries related to petroleum refining2911 through 29993241xx, 325110, and 325194Any activity level
41Industrial machinery manufacturing353x, 356x333xxxAny activity level
51Release of fumigant or fumigation of crops for market using ethylene oxide, propylene oxide, sulfur dioxide, methyl bromide, sulfuryl fluoride, or phosphine and phosphine-generating processes0723, 2033, 2034, 2068, 2099, 5148115111, 115114, 3111xx through 3114xx, 3118xx, and 3119xxAny activity level
61Rubber and miscellaneous plastics products manufacturing if styrene, butadiene, phthalates, carcinogenic solvents, or isocyanates are used3011 through 3089, 3293, 355531332x, 31491x, 3162xx, 3252xx, 325991, 3261xx, 3262xx, and 339113Any activity level
71Processes emitting 1,4-dioxane in reverse osmosis equipment manufacturing, water treatment filtration systems, manufacturing of paints, lacquers, cosmetics, and cleaning agents; manufacturing or processing of petroleum, pulp and paper, explosives; commercial printing, electroplating/polishing; manufacturing of pesticides, dyes, fibers, pharmaceuticals, adhesives, semiconductors, electronic components, photographic equipment, magnetic recording media, polymers, plastics, rubber, and organic and inorganic chemicals; and cleaning or degreasing solvent use containing 1,4-dioxane13xx, 22xx, 26xx, 27xx, 28xx, 29xx, 30xx, 35xx, 36xx, 37xx, 38xx, 49xx, 50xx, 51xx, 73xx, 75xx, 76xx, 97xx211xxx, 221xxx, 236xxx, 2371xx, 2389xx, 3115xx, 3121xx, 3149xx, 3222xx, 3231xx, 325xxx, 326xxx, 331xxx, 332xxx, 333xxx, 334xxx, 3361xx, 3364xx, 3399xx, 4881xx, 5311xx, 5417xx, 5622xx, 61xxxx, 8111xx, 92811x10 pounds of 1,4-dioxane emitted per year
81Combustion of crude, residual, distillate, or diesel oil, except for the agricultural operations and medical-related industry sectors as defined in the SIC and NAICS columnsAny, except SIC codes 0110 through 0762 and 8011 through 8099Any, except 111xxx, 112xxx, 1151xx, 1152xx, and 621xxx through 623xxxTier 4 or higher diesel engines: 100 gallons of fuel combusted per year, or 5 hours per year of non-emergency operation. Tier zero through tier 3 diesel engines: 30 gallons of fuel combusted per year or 5 hours per year of non-emergency operation. Combustion devices other than compression ignition engines: 100 gallons of fuel combusted per year.
91Processes emitting styrene, in boat and ship building and repair; rubber products manufacturing; plastics, resins, and foams manufacturing; utility vault manufacturing; cultured marble and stone manufacturing and wholesale; fiber cans and drums manufacturing; manufacturing and installation of polystyrene products; and furniture and fixtures manufacturing17xx, 22xx, 23xx, 24xx, 25xx, 26xx, 28xx, 30xx, 32xx, 34xx, 35xx, 37xx, 38xx, 44xx, 45xx, 49xx, 50xx, 51xx, 75xx, 97xx211xxx, 2123xx, 213xxx, 221xxx, 236xxx, 237xxx, 311xxx, 3121xx, 313xxx, 314xxx, 315xxx, 316xxx, 321xxx, 322xxx, 32311x, 324xxx, 325xxx, 326xxx, 327xxx, 331xxx, 332xxx, 333xxx, 334xxx, 336xxx, 337xxx, 339xxx, 441xxx, 443xxx, 4441xx, 445xxx, 447xxx, 448xxx, 481xxx, 484xxx, 485xxx, 486xxx, 4881xx, 4883xx, 493xxx, 562xxx, 62xxxx, 722xxx, 8111xx, 8114xx, 8122xx, 92811x1 pound of styrene emitted per year
101Methylene chloride use for paint or coating removal, printing or print shop cleaning, or aircraft maintenance or repairAnyAny1 gallon of methylene chloride used per year
111Paint stripping and varnish stripping7641811420Any activity level
121Use of N-methyl pyrrolidoneAnyAny1 gallon of N-methyl pyrrolidone per year
131Dry cleaning facilities, except facilities that only use water or carbon dioxide based cleaning systems7216, 7217812320, 561740Any activity level
141Tert-butyl acetate use in, aerospace manufacturing and maintenance; fabricated metal products manufacturing; manufacture or use of coatings, inks, adhesives, cleaners and degreasers; and military facilities. Tert-butyl acetate from auto body repair and coating operations are reported under the Phase 2 category for that process.28xx, 32xx, 33xx, 34xx, 37xx, 38xx, 49xx, 50xx, 97xx. Auto body repair and coating operations, and the associated SICs, 5511 through 5521, 7532, and 7535, are reported under Phase 2.325xxx, 327xxx, 331xxx, 332xxx, 3362xx, 3363xx, 3369xx, 3364xx, 5417xx, 5629xx, 92811x. Auto body repair and coating operations, and the associated NAICS, 4411xx, 44121x, 441228, 44131x, 811111, and 811121, are reported under Phase20 pounds of tert-butyl acetate used per year 2.
151Use of parachlorobenzotrifluoride (PCBTF) in cleaning or degreasing solvents, adhesives, printing inks, or coating operations. PCBTF from auto body repair and coating operations are reported under the Phase 2 category for that process.Any Auto body repair and coating operations, and the associated SICs, 5511 through 5521, 7532, and 7535, are reported under Phase 2.Any5 pounds or 0.5 gallons of parachlorobenzotrifluoride used per year
161Solvent cleaning and degreasing13xx, 17xx, 22xx, 25xx, 26xx, 27xx, 28xx, 29xx, 30xx, 32xx, 33xx, 34xx, 35xx, 36xx, 37xx, 38xx, 39xx, 45xx, 49xx, 509x, 519x, 75xx, 7623, 7641, 8071, 822x, 9711211xxx, 212xxx 213xxx, 221xxx, 238xxx, 322xxx, 323xxx, 324xxx, 325xxx, 326xxx, 327xxx, 332xxx, 333xxx, 334xxx, 335xxx, 336xxx, 337xxx, 339xxx, 423xxx, 425xxx, 441xxx, 447xxx, 451xxx, 486xxx, 488xxx, 541xxx, 562xxx, 611xxx, 811xxx, 928xxxUse of solvents that are a listed substance designated as a human carcinogen or potential human carcinogen: Any activity level. Use of solvents that are a listed substance but not designated as a human carcinogen or potential human carcinogen: Annual average of 55 gallons per month.
172Isocyanate compound use, in print shops and commercial printing; aerospace manufacturing and maintenance; adhesive and sealants manufacturing; plastics foam products manufacturing; military facilities; manufacture of flexible and rigid foams, fibers, coatings such as paints and varnishes, and elastomers; spraying of polyurethane coatings on cement, wood, fiberglass and metals; surface coating of appliances; surface coating of magnetic tape; manufacture or use of blowing agents; and production of polyurethane foam24xx, 25xx, 26xx, 27xx, 28xx, 30xx, 33xx, 347x, 36xx, 37xx, 38xx, 39xx, 45xx, 50xx, 51xx, and 97xx.321xxx, 322xxx, 32311x, 324xxx, 325xxx, 326xxx, 3279xx, 331xxx, 334xxx, 335xxx, 3361xx, 3364xx, 3366xx, 339xxx, 481xxx, 4881xx, 4883xx, 5417xx, 8114xx, 92811x.Use of materials containing 3 pounds of isocyanates per year
182Printing and publishing including print shops and miscellaneous commercial printing2711 through 2771, 2782313310, 32311x, 5111xx, 51223x, 561439, 81292xUse of graphic arts materials with no isocyanates: Annual average of 2 gallons per day. Use of graphic arts materials with isocyanates: Annual average of 0.5 gallons per day.
192Hazardous waste treatment, storage, disposal and recycling at a hazardous waste treatment, storage, disposal and recycling facilityAnyAnyAny activity level
202Welding, laser cutting and plasma cutting of metal materials1799, 3356, 3496 3541, 3542, 3544, 3548, 3699, 7692325998, 331491, 332313, 333514, 333517, 333922, 335311, 811310Any activity level
212Construction aggregate processing, if asphalt products are also used or produced1442 through 1446212321 and 212322Any activity level
222Chemicals and allied products manufacturing2812 through 2899211112, 311942, 331311, 325xxxAny activity level
232Bulk petroleum storage and loading, bulk benzene storage and loading, and related wholesalers5171, 51724247xxAny activity level
242Polybrominated biphenyl compounds (PBBs), and any brominated diphenyl ethers, manufacture or useAnyAnyAny activity level
252Use of ethylene oxide for sterilizationAnyAnyAny activity level
262Leather and hide tanning and finishing, processing and fabricated goods3111316110Any activity level
272Retail sale of gasolineAnyAny25,000 gallons of gasoline sold per year
282Auto body repair and coating operations at auto body shops, including new and used car dealers5511 through 5521, 7531, 7532, 75354411xx, 44121x, 441228, 44131x, 811111, 81112150 gallons of paint used per year
292Medical services, hospitals, and related facilities which use formaldehyde (or formalin), glutaraldehyde, ethylene oxide, or diesel engines8011 through 809962xxxx110 pounds of formaldehyde emitted per year, or 110 pounds of glutaraldehyde emitted per year, or any use of ethylene oxide, or 30 gallons of diesel fuel burned or 5 hours of non-emergency engine operation per year.
302Flat glass manufacturing3211327211100 pounds of glass production
312Pressed and blown glassware manufacturing3229, 3221327212, 327213100 pounds of glass production
322Clay ceramics manufacturing3253, 3261327120, 3271101 ton of product manufactured
333Hexavalent chromium use in cooling towersAnyAnyAny activity level
343Incineration of hazardous, municipal, or biomedical waste, or tiresAnyAnyAny activity level
353Cremation of humans or animals7261, 6531, 8699812220Any activity level
363Fiberglass and various fiberglass materials and product manufacturing2221, 3229326191, 326199, 337125Any activity level
373Pulp and paper manufacturing2611, 2621, 26313221xxAny activity level
383Semiconductors and related devices manufacturing3674334413Any activity level
393Oil and gas extraction or production1311 through 1389211xxx, 213111, 213112Any activity level
403Melting, smelting, recovery, reclamation, or recycling of lead-containing materials, including but not limited to lead batteries3300 through 3499, 3690 through 3699, 3714, 3728, 5051, 5093, 9711331410, 331492, and 423930Any activity level
413Primary or secondary metal melting, smelting, refining, alloying, forging, or foundry/casting operations3300 through 3499, 3690 through 3699, 3714, 3728, 5051, 5093, 9711331410, 331492, 33151x, 33152x, and 423930Any activity level
423Prepared feed manufacturing2048321119One ton of product manufactured
433Wood preserving259x321114, 3212xxAny activity level
443Long term asbestos removal on a routine and predictable basisAnyAnyOne year duration
453Combustion of residual, distillate, or diesel oil in agricultural operations-related industry sectors0110 through 07621111xx, 1112xx, 1113xx, 1114xx, 1119xx, 1121xx, 1122xx, 1123xx, 1124xx, 1125xx, 1129xx, 1151xx, and 1152xxTier 4 or higher diesel engines: 100 gallons of fuel combusted per year, or 5 hours per year of non-emergency operation. Tier zero through tier 3 diesel Engines: 30 gallons of fuel combusted per year, or 5 hours per year of non-emergency operation. Combustion devices other than compression ignition engines: 100 gallons of fuel combusted per year.
463Boat and ship building and repair3731, 3732336611, 336612, 488390, 8114901 gallon of coatings used per year
473Combustion of natural gas or propaneAnyAny75 million standard cubic feet or 77,000 MMbtu combusted per year
483BCollection and disposal of refuse49535622xx, 5629201 pound of vinyl chloride or 1 pound of benzene emitted per year
493BComposting of organic waste2875, 4953325314, 562212, 562219Over 500 tons per year of material composted
503BRecycling facilities, and material recovery facilities that separate organic waste from recyclable materials4953562212, 562920Facilities where putrescible material is retained on-site for more than 24 hours prior to removal or disposal in a landfill
513BScrap and waste wholesale handling and recycling, including but not limited to junk metals, shredding operations, and auto dismantling509342393040,000 tons of metal shredded per year or 1,000 tons of metal recycled per year
523BWastewater treatment at wastewater treatment plants, including incineration of sludge4952221320Covered systems: 10 million gallons annual average daily flow. Uncovered systems: 5 million gallons annual average daily flow. Facilities that incinerate sludge: Any activity level

* Where SIC and NAICS codes are designated, the requirements of this article apply to facilities classified with either a matching primary or secondary Standard Industrial Classification (SIC) code or North American Industry Classification System (NAICS) code listed for the permitted emissions process, and for which the listed process occurs at levels exceeding the emission or activity level threshold. If the SIC or NAICS codes have a designation of "Any" in Table A-3 for a permitted process, then the requirements of this article apply regardless of the SIC or NAICS designation for the facility performing the process, if the listed activity level reporting threshold is exceeded.

1. New Appendix A filed 10-28-2021; operative 1-1-2022 (Register 2021, No. 44). Filing deadline specified in Government Code section 11349.3(a) extended 60 calendar days pursuant to Executive Order N-40-20.

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