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40 CFR 63 Subpart LLLLLL (6L)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/acrylic-and-modacrylic-fibers-production-national-emission
acrylic-modacrylic-fiber-area-sources
acrylonitrile
2008-03-28T00:00:00
2007-07-16T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/acrylic-and-modacrylic-fibers-production-national-emission
Acrylic/Modacrylic Fiber (area sources)
This National Emission Standards for Hazardous Air Pollutants (NESHAP) for Acrylic and Modacrylic Fibers Production Area Sources was promulgated in 2007 and was amended in 2008. This regulation sets standards for process vents, fiber spinning lines, storage vessels, process and maintenance wastewater, and equipment lea...
area sources
https://referencesource.org/neshap-source-category-crosswalk/acrylic-modacrylic-fiber-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart GG
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/aerospace-manufacturing-and-rework-facilities-national-emission
aerospace
chromium, cadmium, methylene chloride, toluene, xylene, methyl ethyl ketone, ethylene glycol and glycol ethers
2016-08-03T00:00:00
1995-09-01T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/aerospace-manufacturing-and-rework-facilities-national-emission
Aerospace
The Hazardous Air Pollutants (HAP) listed in Section 112(b)(1) of the Clean Air Act emitted by aerospace facilities that are covered by this final rule include: chromium, cadmium, methylene chloride, toluene, xylene, methyl ethyl ketone, ethylene glycol and glycol ethers.
major sources
https://referencesource.org/neshap-source-category-crosswalk/aerospace/
[ "key_haps_regulated", "source_category" ]
40 CFR 61 Subpart M
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/asbestos-national-emission-standards-hazardous-air-pollutants
asbestos
asbestos
2004-07-20T00:00:00
1973-04-06T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/asbestos-national-emission-standards-hazardous-air-pollutants
Asbestos
EPA's air toxics regulation for asbestos is intended to minimize the release of asbestos fibers during activities involving the handling of asbestos.
major sources
https://referencesource.org/neshap-source-category-crosswalk/asbestos/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart LLLLL
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/asphalt-processing-and-asphalt-roofing-manufacturing-national
asphalt-processing-and-asphalt-roofing-manufacturing
null
2020-03-12T00:00:00
2003-05-07T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/asphalt-processing-and-asphalt-roofing-manufacturing-national
Asphalt Processing and Asphalt Roofing Manufacturing
This regulation applies to sources of air toxics in two separate source categories: asphalt processing facilities and asphalt roofing manufacturing facilities. Asphalt processing facilities produce “blown” asphalt for use in the asphalt roofing manufacturing industry and elsewhere. Asphalt roofing manufacturing facilit...
major sources
https://referencesource.org/neshap-source-category-crosswalk/asphalt-processing-and-asphalt-roofing-manufacturing/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart AAAAAAA (7A)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/asphalt-processing-and-asphalt-roofing-manufacturing-national-0
asphalt-processing-and-asphalt-roofing-manufacturing-area-sources
null
2010-03-18T00:00:00
2009-12-02T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/asphalt-processing-and-asphalt-roofing-manufacturing-national-0
Asphalt Processing and Asphalt Roofing Manufacturing (area sources)
EPA is promulgating national emissions standards for the control of emissions of hazardous air pollutants (HAP) from the asphalt processing and asphalt roofing manufacturing area source category. These final emissions standards for new and existing sources are based upon EPA’s final determination as to what constitutes...
area sources
https://referencesource.org/neshap-source-category-crosswalk/asphalt-processing-and-asphalt-roofing-manufacturing-area-sources/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart IIII
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-automobiles-and-light-duty-trucks-national
auto-and-light-duty-truck-surface-coating
toluene, xylene, glycol ethers, methyl isobutyl ketone, methanol, methyl ethyl ketone
2020-07-08T00:00:00
2004-04-26T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-automobiles-and-light-duty-trucks-national
Auto and Light Duty Truck Surface Coating
This action promulgates national emission standards for hazardous air pollutants (NESHAP) for automobile and light-duty truck surface coating operations located at major sources of hazardous air pollutants (HAP). The final rule implements section 112(d) of the Clean Air Act (CAA) by requiring these operations to meet H...
major sources
https://referencesource.org/neshap-source-category-crosswalk/auto-and-light-duty-truck-surface-coating/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 61 Subpart BB
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/benzene-transfer-operations-national-emission-standards-hazardous
benzene-transfer-operations
benzene
1990-10-31T00:00:00
1990-03-07T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/benzene-transfer-operations-national-emission-standards-hazardous
Benzene Transfer Operations
The March 1990 National Emission Standards for Benzene Transfer Operations controls hazardous air emissions when benzene is loaded into take trucks, railcars, or marine vessels at benzene production facilities and bulk terminals.
major sources
https://referencesource.org/neshap-source-category-crosswalk/benzene-transfer-operations/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 61 Subpart FF
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/benzene-waste-operations-national-emission-standards-hazardous-air
benzene-waste-operations
null
2003-12-04T00:00:00
1990-03-07T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/benzene-waste-operations-national-emission-standards-hazardous-air
Benzene Waste Operations
Benzene Waste Operations: National Emission Standards for Hazardous Air Pollutants Benzene Waste Operations: National Emission Standards for Hazardous Air Pollutants Basic Information Legal Authorities 42 U.S.C. §7401 Federal Register Citations 68 FR 67932 68 FR 6082 67 FR 68546 55 FR 8346 Code of Federal Regulations C...
major sources
https://referencesource.org/neshap-source-category-crosswalk/benzene-waste-operations/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 61 Subpart C
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/beryllium-national-emissions-standards-hazardous-air-pollutants
beryllium
a determination from the Administrator that sources of beryllium emissions should be controlled such that ambient air does not contain beryllium at air levels higher than 0
1973-04-06T00:00:00
1973-04-06T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/beryllium-national-emissions-standards-hazardous-air-pollutants
Beryllium
On April 6, 1973, the U.S. EPA promulgated the National Emissions Standards for Hazardous Air Pollutants for Beryllium. The standards include a determination from the Administrator that sources of beryllium emissions should be controlled such that ambient air does not contain beryllium at air levels higher than 0.01 mi...
major sources
https://referencesource.org/neshap-source-category-crosswalk/beryllium/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 61 Subpart D
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/beryllium-rocket-motor-firing-national-emission-standards
beryllium-rocket-motor-firing
beryllium
1973-04-06T00:00:00
1973-04-06T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/beryllium-rocket-motor-firing-national-emission-standards
Beryllium Rocket Motor Firing
The National Emission Standard for Beryllium Rocket Motor Firing is applicable to rocket motor test sites which are defined as any building, structure, facility, or installation where the static test firing of a beryllium rocket motor and/or the disposal of beryllium propellant is conducted. The rule limits the amount ...
major sources
https://referencesource.org/neshap-source-category-crosswalk/beryllium-rocket-motor-firing/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart VVVV
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/boat-manufacturing-national-emission-standards-hazardous-air
boat-manufacturing
styrene, methyl methacrylate (MMA), methylene chloride (dichloromethane), toluene, xylene, n-hexane, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), and methyl chloroform (1,1,1- trichloroethane)
2020-03-20T00:00:00
2001-08-22T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/boat-manufacturing-national-emission-standards-hazardous-air
Boat Manufacturing
The EPA has identified boat manufacturing as a major source of hazardous air pollutants (HAP), such as styrene, methyl methacrylate (MMA), methylene chloride (dichloromethane), toluene, xylene, n-hexane, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), and methyl chloroform (1,1,1- trichloroethane).
major sources
https://referencesource.org/neshap-source-category-crosswalk/boat-manufacturing/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart JJJJJ
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/brick-and-structural-clay-products-national-emission-standards
brick-and-structural-clay-products-manufacturing-see-also-clay-ceramics
mercury, particulate matter, metals, and acid gases
2015-12-04T00:00:00
2003-05-16T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/brick-and-structural-clay-products-national-emission-standards
Brick and Structural Clay Products Manufacturing (see also Clay Ceramics)
This major source rule covers brick and structural clay (BSCP) facilities that produce brick and clay for construction purposes. The affected sources are all tunnel kilns at a BSCP manufacturing facility; and each periodic kiln. Tunnel kilns are fired by natural gas or other fuels, including sawdust. Pollutants regulat...
major sources
https://referencesource.org/neshap-source-category-crosswalk/brick-and-structural-clay-products-manufacturing-see-also-clay-ceramics/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart MMMMMM (6M)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/carbon-black-production-area-sources-national-emission-standards
carbon-black-production-area-sources
benzene, organic hap
2008-03-26T00:00:00
2007-07-16T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/carbon-black-production-area-sources-national-emission-standards
Carbon Black Production (area sources)
The Carbon Black Production area source category includes any facility that produces carbon black by the furnace black process, thermal black process, or the acetylene decomposition process, but at an emissions rate of 10 tons per year for one
area sources
https://referencesource.org/neshap-source-category-crosswalk/carbon-black-production-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart VVVVVV (6V)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/chemical-manufacturing-area-sources-national-emission-standards
chemical-manufacturing-industry-area-sources-cmas
hazardous air pollutants from nine area source categories in the chemical manufacturing sector
2026-04-01T00:00:00
2009-10-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/chemical-manufacturing-area-sources-national-emission-standards
Chemical Manufacturing Industry (area sources): CMAS
These national emission standards are for the control of hazardous air pollutants for nine area source categories in the chemical manufacturing sector: Agricultural Chemicals and Pesticides Manufacturing, Cyclic Crude and Intermediate Production, Industrial Inorganic Chemical Manufacturing, Industrial Organic Chemical ...
area sources
https://referencesource.org/neshap-source-category-crosswalk/chemical-manufacturing-industry-area-sources-cmas/
[ "key_haps_regulated" ]
40 CFR 63 Subpart BBBBBBB (7B)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/chemical-preparations-industry-national-emission-standards
chemical-preparations-industry-area-sources
particulate matter, chromium, lead, manganese, nickel
2009-12-30T00:00:00
2009-12-30T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-8
Chemical Preparations Industry (area sources)
Chemical Preparations Industry (area sources) | 40 CFR 63 Subpart BBBBBBB (7B)
area sources
https://referencesource.org/neshap-source-category-crosswalk/chemical-preparations-industry-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart NNNNNN (6N)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/chromium-compounds-national-emission-standards-hazardous-air
chromium-compounds-area-sources
chromium, particulate matter
2008-03-28T00:00:00
2007-07-16T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/chromium-compounds-national-emission-standards-hazardous-air
Chromium Compounds (area sources)
The National Emission Standards for Hazardous Air Pollutants (NESHAP) for Chromium Compounds Manufacturing Area Sources were initially proposed in April 2007 and finalized in July 2007. These air toxics standards for chromium compounds manufacturing area sources regulate emissions of particulate matter (PM).
area sources
https://referencesource.org/neshap-source-category-crosswalk/chromium-compounds-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart RRRRRR (6R)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/clay-ceramics-manufacturing-area-sources-national-emission
clay-ceramics-manufacturing-area-sources
particulate matter
2007-12-26T00:00:00
2007-12-26T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-8
Clay Ceramics Manufacturing (area sources)
Clay Ceramics Manufacturing (area sources) | 40 CFR 63 Subpart RRRRRR (6R)
area sources
https://referencesource.org/neshap-source-category-crosswalk/clay-ceramics-manufacturing-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart KKKKK
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/clay-ceramics-manufacturing-national-emission-standards-hazardous
clay-ceramics-manufacturing-see-also-brick-and-clay-products
acid gases, particulate matter, metals, and mercury
2019-11-01T00:00:00
2003-05-16T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-8
Clay Ceramics Manufacturing (see also Brick and Clay Products)
Clay Ceramics Manufacturing (see also Brick and Clay Products) | 40 CFR 63 Subpart KKKKK
major sources
https://referencesource.org/neshap-source-category-crosswalk/clay-ceramics-manufacturing-see-also-brick-and-clay-products/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart UUUUU
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/mercury-and-air-toxics-standards
coal-and-oil-fired-electric-utility-steam-generating-units-mercury-and-air-toxic
mercury and other hazardous air pollutants
2026-02-24T00:00:00
2012-02-16T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/mercury-and-air-toxics-standards
Coal- and Oil-Fired Electric Utility Steam Generating Units (Mercury and Air Toxics Standards)
EPA set technology-based emissions standards for mercury and other hazardous air pollutants (HAP) emitted by units with a capacity of more than 25 megawatts.
major sources
https://referencesource.org/neshap-source-category-crosswalk/coal-and-oil-fired-electric-utility-steam-generating-units-mercury-and-air-toxic/
[ "key_haps_regulated" ]
40 CFR 61 Subpart L
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/coke-oven-product-recovery-plants-national-emissions-standards
coke-oven-by-product-recovery-plants
benzene
1999-02-12T00:00:00
1989-09-14T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-8
Coke Oven By-product Recovery Plants
Coke Oven By-product Recovery Plants | 40 CFR 61 Subpart L
major sources
https://referencesource.org/neshap-source-category-crosswalk/coke-oven-by-product-recovery-plants/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart L
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/coke-ovens-batteries-national-emissions-standards-hazardous-air
coke-ovens-charging-top-side-and-door-leaks
benzene
2024-07-05T00:00:00
1993-10-27T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/coke-ovens-batteries-national-emissions-standards-hazardous-air
Coke Ovens: Charging, Top Side, and Door Leaks
Following a technology review for the Coke Ovens Batteries NESHAP, conducted in accordance with the Clean Air Act, EPA finalized:
major sources
https://referencesource.org/neshap-source-category-crosswalk/coke-ovens-charging-top-side-and-door-leaks/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart CCCCC
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/coke-ovens-pushing-quenching-and-battery-stacks-national-emission
coke-ovens-pushing-quenching-and-battery-stacks
benzene, mercury, lead and arsenic that are emitted by coke oven facilities
2024-07-05T00:00:00
2003-04-14T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/coke-ovens-pushing-quenching-and-battery-stacks-national-emission
Coke Ovens: Pushing, Quenching, and Battery Stacks
The Environmental Protection Agency (EPA) finalized amendments to update and strengthen emission standards for hazardous air pollutants (HAP) such as benzene, mercury, lead and arsenic that are emitted by coke oven facilities.
major sources
https://referencesource.org/neshap-source-category-crosswalk/coke-ovens-pushing-quenching-and-battery-stacks/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YYYYY
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/electric-arc-furnace-steelmaking-facilities-national-emission
electric-arc-furnace-steelmaking-facilities-area-sources
mercury
2007-12-28T00:00:00
2007-12-28T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/electric-arc-furnace-steelmaking-facilities-national-emission
Electric Arc Furnace Steelmaking Facilities (area sources)
These national emission standards cover electric arc furnace steelmaking facilities that are area sources of hazardous air pollutants. The final rule establishes requirements for the control of mercury emissions that are based on the maximum achievable control technology and requirements for the control of other hazard...
area sources
https://referencesource.org/neshap-source-category-crosswalk/electric-arc-furnace-steelmaking-facilities-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart PPPPP
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/engine-test-cellsstands-national-emission-standards-hazardous-air
engine-test-cells-stands-see-also-beryllium-rocket-motor-firing
toluene, benzene
2020-06-03T00:00:00
2003-05-27T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/engine-test-cellsstands-national-emission-standards-hazardous-air
Engine Test Cells/Stands (see also Beryllium Rocket Motor Firing)
On May 27, 2003 EPA published the final national emission standards for hazardous air pollutants (NESHAP) for engine test cells/stands. Engine test cells/stands are used in a variety of applications to develop, characterize and test engines.
major sources
https://referencesource.org/neshap-source-category-crosswalk/engine-test-cells-stands-see-also-beryllium-rocket-motor-firing/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart O
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/ethylene-oxide-emissions-standards-sterilization-facilities
ethylene-oxide-emission-standards-for-sterilization-facilities-see-also-hospital
ethylene oxide
2024-04-05T00:00:00
1994-12-06T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/ethylene-oxide-emissions-standards-sterilization-facilities
Ethylene Oxide Emission Standards for Sterilization Facilities (see also Hospital Ethylene Oxide Sterilizers)
These standards implement section 112 of the Clean Air Act and are based on the Administrator's determination that commercial sterilization and fumigation operations emit ethylene oxide, a pollutant identified in the Act list of 189 hazardous air pollutants (HAP).
major sources
https://referencesource.org/neshap-source-category-crosswalk/ethylene-oxide-emission-standards-for-sterilization-facilities-see-also-hospital/
[ "key_haps_regulated" ]
40 CFR 63 Subpart OOOO
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/printing-coating-and-dyeing-fabrics-and-other-textiles-national
fabric-printing-coating-and-dyeing
toluene, methyl ethyl ketone (MEK), methanol, xylenes, methyl isobutyl ketone (MIBK), methylene chloride, trichloroethylene, n-hexane, glycol ethers (ethylene glycol), and formaldehyde
2020-07-08T00:00:00
2003-05-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/printing-coating-and-dyeing-fabrics-and-other-textiles-national
Fabric Printing, Coating and Dyeing
The final standards implement section 112(d) of the Clean Air Act (CAA) by requiring all major sources to meet the hazardous air pollutants (HAP) emission standards reflecting the application of the maximum achievable control technology (MACT).
major sources
https://referencesource.org/neshap-source-category-crosswalk/fabric-printing-coating-and-dyeing/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YYYYYY (6Y)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/ferroalloys-production-facilities-national-emission-standards
ferroalloys-production-area-sources
null
2008-12-23T00:00:00
2008-12-23T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/ferroalloys-production-facilities-national-emission-standards
Ferroalloys Production (area sources)
EPA issued final national emissions standards for control of hazardous air pollutants (HAP) for area source ferroalloys production facilities. The final emissions standards for new and existing sources reflect EPA’s determination regarding the generally available control technology (GACT) or management practices for th...
area sources
https://referencesource.org/neshap-source-category-crosswalk/ferroalloys-production-area-sources/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart XXX
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/ferromanganese-and-silicomanganese-production-national-emission
ferroalloys-production-major-sources
particulate matter, formaldehyde, hydrogen chloride, mercury, pah
2015-06-30T00:00:00
1999-05-20T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/ferromanganese-and-silicomanganese-production-national-emission
Ferroalloys Production (major sources)
Emissions limits for particulate matter (PM) from stacks for the electric arc furnaces (EAF), metal oxygen refining (MOR) processes, and crushing and screening operations to minimize PM emissions from these units;
major sources
https://referencesource.org/neshap-source-category-crosswalk/ferroalloys-production-major-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart MMMMM
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/flexible-polyurethane-foam-fabrication-operations-national
flexible-polyurethane-foam-fabrication-operation
hydrochloric acid (HCl), 2,4-toluene diisocyanate (TDI), and hydrogen cyanide (HCN)
2003-04-14T00:00:00
2003-04-14T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/flexible-polyurethane-foam-fabrication-operations-national
Flexible Polyurethane Foam Fabrication Operation
This action promulgates national emission standards for hazardous air pollutants (NESHAP) for new and existing sources at flexible polyurethane foam fabrication facilities. EPA has identified flexible polyurethane foam fabrication facilities as major
major sources
https://referencesource.org/neshap-source-category-crosswalk/flexible-polyurethane-foam-fabrication-operation/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart III
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/flexible-polyurethane-foam-production-national-emission-standards
flexible-polyurethane-foam-production
methylene chloride, toluene, methyl chloroform, methyl ethyl ketone, methanol
2014-08-15T00:00:00
1998-10-07T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/flexible-polyurethane-foam-production-national-emission-standards
Flexible Polyurethane Foam Production
This action promulgates national emission standards for hazardous air pollutants (NESHAP) for new and existing plant sites that manufacture flexible polyurethane foam. The original technology-based rule, issued in 1998, controlled emission of methylene chloride, 2,4-toluene diisocyanate (TDI), methyl chloroform, methyl...
major sources
https://referencesource.org/neshap-source-category-crosswalk/flexible-polyurethane-foam-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart OOOOOO (6-O)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/flexible-polyurethane-foam-production-and-fabrication-national
flexible-polyurethane-foam-production-and-fabrication-area-sources
methylene chloride
2021-11-18T00:00:00
2007-07-16T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/flexible-polyurethane-foam-production-and-fabrication-national
Flexible Polyurethane Foam Production and Fabrication (area sources)
The final National Emission Standards for Hazardous Air Pollutants (NESHAP) prohibits the use of methylene chloride at foam fabrication operations. Area sources of flexible polyurethane foam fabrication cut or bond flexible polyurethane foam pieces
area sources
https://referencesource.org/neshap-source-category-crosswalk/flexible-polyurethane-foam-production-and-fabrication-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart QQQQQ
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/friction-materials-manufacturing-facilities-national-emission
friction-products-manufacturing
null
2002-10-18T00:00:00
2002-10-18T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/friction-materials-manufacturing-facilities-national-emission
Friction Products Manufacturing
This regulation reduces emissions of air toxics from facilities that manufacture friction materials. Air toxics are known or suspected to cause cancer or other serious health problems. Friction materials include brake and clutch linings, and are used in brake and clutch assemblies.
major sources
https://referencesource.org/neshap-source-category-crosswalk/friction-products-manufacturing/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart CCCCCC (6C)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/gasoline-dispensing-area-sources-national-emission-standards
gasoline-dispensing-facilities-area-sources
null
2011-01-24T00:00:00
2008-01-10T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/gasoline-dispensing-area-sources-national-emission-standards
Gasoline Dispensing Facilities (area sources)
This rule promulgates national emission standards for hazardous air pollutants for gasoline dispensing facilities. Gasoline dispensing facilities receive gasoline via gasoline cargo tanks from gasoline distribution facilities. Air toxics are released during the delivery of gasoline into storage tanks.
area sources
https://referencesource.org/neshap-source-category-crosswalk/gasoline-dispensing-facilities-area-sources/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart BBBBBB (6B)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/gasoline-distribution-mact-and-gact-national-emission-standards
gasoline-distribution-bulk-terminals-bulk-plants-and-pipeline-facilities-area-so
null
2024-05-08T00:00:00
1994-12-14T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/gasoline-distribution-mact-and-gact-national-emission-standards
Gasoline Distribution Bulk Terminals, Bulk Plants, and Pipeline Facilities (area sources)
These actions promulgate national emission standards for hazardous air pollutants for the facilities in the gasoline distribution source category. Gasoline distribution facilities transfer and store gasoline as it is distributed from petroleum refineries to gasoline dispensing facilities. Air toxics are released during...
area sources
https://referencesource.org/neshap-source-category-crosswalk/gasoline-distribution-bulk-terminals-bulk-plants-and-pipeline-facilities-area-so/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart R
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/gasoline-distribution-mact-and-gact-national-emission-standards
gasoline-distribution-major-sources
null
2024-05-08T00:00:00
1994-12-14T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/gasoline-distribution-mact-and-gact-national-emission-standards
Gasoline Distribution (major sources)
These actions promulgate national emission standards for hazardous air pollutants for the facilities in the gasoline distribution source category. Gasoline distribution facilities transfer and store gasoline as it is distributed from petroleum refineries to gasoline dispensing facilities. Air toxics are released during...
major sources
https://referencesource.org/neshap-source-category-crosswalk/gasoline-distribution-major-sources/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YY
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
generic-mact-i-acetal-resins
hydrogen fluoride, cyanide
2024-04-04T00:00:00
1999-06-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
Generic MACT I - Acetal Resins
This regulation sets standards for multiple source categories including: acetyl resins production, hydrogen fluoride production, polycarbonate, ethylene and cyanide chemical production. The rule includes requirements that are source category specific, and requirements that apply to all source categories that are regula...
major sources
https://referencesource.org/neshap-source-category-crosswalk/generic-mact-i-acetal-resins/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YY
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
generic-mact-i-acrylic-modacrylic-fibers
hydrogen fluoride, cyanide
2024-04-04T00:00:00
1999-06-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
Generic MACT I - Acrylic/Modacrylic Fibers
This regulation sets standards for multiple source categories including: acetyl resins production, hydrogen fluoride production, polycarbonate, ethylene and cyanide chemical production. The rule includes requirements that are source category specific, and requirements that apply to all source categories that are regula...
major sources
https://referencesource.org/neshap-source-category-crosswalk/generic-mact-i-acrylic-modacrylic-fibers/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YY
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
generic-mact-i-hydrogen-floride
hydrogen fluoride, cyanide
2024-04-04T00:00:00
1999-06-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
Generic MACT I - Hydrogen Floride
This regulation sets standards for multiple source categories including: acetyl resins production, hydrogen fluoride production, polycarbonate, ethylene and cyanide chemical production. The rule includes requirements that are source category specific, and requirements that apply to all source categories that are regula...
major sources
https://referencesource.org/neshap-source-category-crosswalk/generic-mact-i-hydrogen-floride/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YY
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
generic-mact-i-polycarbonates-production
hydrogen fluoride, cyanide
2024-04-04T00:00:00
1999-06-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
Generic MACT I - Polycarbonates Production
This regulation sets standards for multiple source categories including: acetyl resins production, hydrogen fluoride production, polycarbonate, ethylene and cyanide chemical production. The rule includes requirements that are source category specific, and requirements that apply to all source categories that are regula...
major sources
https://referencesource.org/neshap-source-category-crosswalk/generic-mact-i-polycarbonates-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YY
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
generic-mact-ii-carbon-black-production
hydrogen fluoride, cyanide
2024-04-04T00:00:00
1999-06-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
Generic MACT II - Carbon Black Production
This regulation sets standards for multiple source categories including: acetyl resins production, hydrogen fluoride production, polycarbonate, ethylene and cyanide chemical production. The rule includes requirements that are source category specific, and requirements that apply to all source categories that are regula...
major sources
https://referencesource.org/neshap-source-category-crosswalk/generic-mact-ii-carbon-black-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YY
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
generic-mact-ii-cyanide-chemicals-manufacturing
hydrogen fluoride, cyanide
2024-04-04T00:00:00
1999-06-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
Generic MACT II - Cyanide Chemicals Manufacturing
This regulation sets standards for multiple source categories including: acetyl resins production, hydrogen fluoride production, polycarbonate, ethylene and cyanide chemical production. The rule includes requirements that are source category specific, and requirements that apply to all source categories that are regula...
major sources
https://referencesource.org/neshap-source-category-crosswalk/generic-mact-ii-cyanide-chemicals-manufacturing/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YY
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
generic-mact-ii-ethylene-processes
hydrogen fluoride, cyanide
2024-04-04T00:00:00
1999-06-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
Generic MACT II - Ethylene Processes
This regulation sets standards for multiple source categories including: acetyl resins production, hydrogen fluoride production, polycarbonate, ethylene and cyanide chemical production. The rule includes requirements that are source category specific, and requirements that apply to all source categories that are regula...
major sources
https://referencesource.org/neshap-source-category-crosswalk/generic-mact-ii-ethylene-processes/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart YY
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
generic-mact-ii-spandex-production
hydrogen fluoride, cyanide
2024-04-04T00:00:00
1999-06-29T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/acetal-resins-acrylic-modacrylic-fibers-carbon-black-hydrogen
Generic MACT II - Spandex Production
This regulation sets standards for multiple source categories including: acetyl resins production, hydrogen fluoride production, polycarbonate, ethylene and cyanide chemical production. The rule includes requirements that are source category specific, and requirements that apply to all source categories that are regula...
major sources
https://referencesource.org/neshap-source-category-crosswalk/generic-mact-ii-spandex-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart SSSSSS (6S)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/glass-manufacturing-area-sources-national-emission-standards
glass-manufacturing-area-sources
metal hap
2007-12-26T00:00:00
2007-12-26T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/glass-manufacturing-area-sources-national-emission-standards
Glass Manufacturing (area sources)
This National Emission Standards for Hazardous Air Pollutants (NESHAP) applies to any glass manufacturing plant that is an area source of hazardous air pollutants (HAP) emissions and operates one or more continuous furnaces which produce at least 45 Mg/yr (50 tpy) of glass per furnace by melting a mixture of raw materi...
area sources
https://referencesource.org/neshap-source-category-crosswalk/glass-manufacturing-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 61 Subpart N
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/inorganic-arsenic-emissions-glass-manufacturing-plants-national
glass-manufacturing-inorganic-arsenic
arsenic
1986-08-04T00:00:00
1986-08-04T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/inorganic-arsenic-emissions-glass-manufacturing-plants-national
Glass Manufacturing - Inorganic Arsenic
This is a part 61 (i.e., old) National Emission Standard for Hazardous Air Pollutants (NESHAP). It regulates arsenic emissions from glass manufacturing furnaces.
major sources
https://referencesource.org/neshap-source-category-crosswalk/glass-manufacturing-inorganic-arsenic/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart EEEEEEE (7E)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/gold-mine-ore-processing-and-production-national-emission
gold-mine-ore-processing-and-production-area-sources
mercury
2011-02-17T00:00:00
2011-02-17T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/gold-mine-ore-processing-and-production-national-emission
Gold Mine Ore Processing and Production (area sources)
On February 17, 2011 , the U.S. Environmental Protection Agency (EPA) promulgated National Emissions Standards for Hazardous Air Pollutants for gold ore processing and production facilities, the seventh largest source of mercury air emission in the United States.
area sources
https://referencesource.org/neshap-source-category-crosswalk/gold-mine-ore-processing-and-production-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart T
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/halogenated-solvent-cleaning-national-emission-standards-0
halogenated-solvent-cleaning
methylene chloride, perchloroethylene, carbon tetrachloride, chloroform
2007-05-03T00:00:00
1994-12-02T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/halogenated-solvent-cleaning-national-emission-standards-0
Halogenated Solvent Cleaning
<https://www.govinfo.gov/content/pkg/FR-1994-12-02/html/94-28974.htm> Final Rule and Test Method 11/29/1993 - <https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-3> Proposed Rule and Test Method & Notice of Public Hearing 03/31/1993 - Notice Additional Resou...
major sources
https://referencesource.org/neshap-source-category-crosswalk/halogenated-solvent-cleaning/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart EEE
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/hazardous-waste-combustors-national-emission-standards-hazardous
hazardous-waste-combustors
hydrochloric acid
2024-07-12T00:00:00
1998-06-19T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/hazardous-waste-combustors-national-emission-standards-hazardous
Hazardous Waste Combustors
hazardous waste combustors (HWCs): hazardous waste burning incinerators, cement kilns, lightweight aggregate kilns, industrial/commercial/institutional boilers and process heaters, and hydrochloric acid production furnaces. EPA has identified HWCs as major sources of hazardous air pollutant (HAP) emissions.
major sources
https://referencesource.org/neshap-source-category-crosswalk/hazardous-waste-combustors/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart WWWWW
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/hospital-ethylene-oxide-sterilizers-national-emission-standards
hospital-ethylene-oxide-sterilizers-area-sources-see-also-ethylene-oxide-sterili
ethylene oxide
2007-12-28T00:00:00
2007-12-28T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/hospital-ethylene-oxide-sterilizers-national-emission-standards
Hospital Ethylene Oxide Sterilizers (area sources) (see also Ethylene Oxide Sterilizers)
This final rule applies to any existing or new hospital ethylene oxide sterilization facility that is an area source of hazardous air pollutants (HAP). The owner or operator of an existing area source must comply with this area source National Emission Standards for Hazardous Air Pollutants (NESHAP) by December 29, 200...
area sources
https://referencesource.org/neshap-source-category-crosswalk/hospital-ethylene-oxide-sterilizers-area-sources-see-also-ethylene-oxide-sterili/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart NNNNN
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/hydrochloric-acid-production-national-emission-standards-hazardous
hydrochloric-acid-production
hydrochloric acid, chlorine
2020-04-15T00:00:00
2003-04-17T00:00:00
pending
https://www.epa.gov/stationary-sources-air-pollution/hydrochloric-acid-production-national-emission-standards-hazardous
Hydrochloric Acid Production
The National Emission Standards for Hazardous Air Pollutants (NESHAP) for Hydrochloric Acid Production were initially proposed in 2001 and finalized in 2003. In this rule, EPA regulates HCl and chlorine emissions from HCl production facilities.
major sources
https://referencesource.org/neshap-source-category-crosswalk/hydrochloric-acid-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart DDDDD
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/industrial-commercial-and-institutional-boilers-and-process-0
industrial-commercial-and-institutional-boilers-and-process-heaters-major-source
mercury, hydrogen chloride, particulate matter
2022-10-06T00:00:00
2004-09-13T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-8
Industrial, Commercial and Institutional Boilers and Process Heaters (major sources)
Industrial, Commercial and Institutional Boilers and Process Heaters (major sources) | 40 CFR 63 Subpart DDDDD
major sources
https://referencesource.org/neshap-source-category-crosswalk/industrial-commercial-and-institutional-boilers-and-process-heaters-major-source/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart Q
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/industrial-process-cooling-towers-national-emission-standards
industrial-process-cooling-towers
chromium
2006-04-07T00:00:00
1994-09-08T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/industrial-process-cooling-towers-national-emission-standards
Industrial Process Cooling Towers
The National Emission Standards for Hazardous Air Pollutants (NESHAP) for Industrial Cooling Towers set standards for emissions of chromium compounds, which are released into the atmosphere from the cooling tower during the cooling process.
major sources
https://referencesource.org/neshap-source-category-crosswalk/industrial-process-cooling-towers/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 61 Subpart O
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/inorganic-arsenic-emissions-primary-copper-smelters-national
inorganic-arsenic-emissions-from-primary-copper-smelters
arsenic, particulate matter
1986-08-04T00:00:00
1986-08-04T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/inorganic-arsenic-emissions-primary-copper-smelters-national
Inorganic Arsenic Emissions from Primary Copper Smelters
On August 4, 1986, the EPA promulgated national emission standards for hazardous air pollutants (NESHAP), specifically inorganic arsenic emissions, from a number of source categories, including Primary Copper Smelters, glass manufacturing plants, and arsenic plants. The standards for Primary Copper Smelters include des...
major sources
https://referencesource.org/neshap-source-category-crosswalk/inorganic-arsenic-emissions-from-primary-copper-smelters/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 61 Subpart P
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/inorganic-arsenic-emissions-arsenic-trioxide-and-metallic-arsenic
inorganic-arsenic-from-arsenic-trioxide-and-metallic-arsenic-production
primary copper smelters, glass manufacturing plants, and arsenic plants
1986-08-04T00:00:00
1986-08-04T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/inorganic-arsenic-emissions-arsenic-trioxide-and-metallic-arsenic
Inorganic Arsenic from Arsenic trioxide and Metallic Arsenic Production
This action promulgates national emission standards for hazardous air pollutants (NESHAP), specifically inorganic arsenic emissions, from a number of source categories. Those source categories include primary copper smelters, glass manufacturing plants, and arsenic plants.
major sources
https://referencesource.org/neshap-source-category-crosswalk/inorganic-arsenic-from-arsenic-trioxide-and-metallic-arsenic-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart FFFFF
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/integrated-iron-and-steel-manufacturing-national-emission
integrated-iron-and-steel
metals (primarily manganese and lead with small quantities of other metals) and trace amounts of organic HAP (such as polycyclic organic matter, benzene, and carbon disulfide)
2025-03-31T00:00:00
2003-05-20T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/integrated-iron-and-steel-manufacturing-national-emission
Integrated Iron and Steel
This rule establishes national emission standards for hazardous air pollutants (NESHAP) for integrated iron and steel manufacturing facilities. The final standards establish emission limitations for hazardous air pollutants (HAP) emitted from new and existing sinter plants, blast furnaces, and basic oxygen process furn...
major sources
https://referencesource.org/neshap-source-category-crosswalk/integrated-iron-and-steel/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart ZZZZZ
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/iron-and-steel-foundries-national-emission-standards-hazardous-air
iron-and-steel-foundries-area-sources
null
2020-09-10T00:00:00
2008-01-02T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/iron-and-steel-foundries-national-emission-standards-hazardous-air
Iron and Steel Foundries (area sources)
EPA issued final national emissions standards for control of hazardous air pollutants (HAP) for area source iron and steel foundries. The final emissions standards for new and existing sources reflect EPA’s determination regarding the generally available control technology (GACT) or management practices for the source ...
area sources
https://referencesource.org/neshap-source-category-crosswalk/iron-and-steel-foundries-area-sources/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart EEEEE
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/iron-and-steel-foundries-national-emissions-standards-hazardous
iron-and-steel-foundries-major-sources
metal hap, lead, manganese, cadmium, chromium, nickel, organic hap, benzene, formaldehyde, methanol, naphthalene, toluene, xylene
2020-09-10T00:00:00
2004-04-22T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/iron-and-steel-foundries-national-emissions-standards-hazardous
Iron and Steel Foundries (major sources)
This rule sets national emission standards for hazardous air pollutants (NESHAP) for iron and steel foundries. The EPA has identified iron and steel foundries as a major source of hazardous air pollutant (HAP) emissions. These proposed standards will implement section 112(d) of the Clean Air Act (CAA) by requiring all ...
major sources
https://referencesource.org/neshap-source-category-crosswalk/iron-and-steel-foundries-major-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart NNNN
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-large-appliances-national-emission-standards
large-appliances-surface-coating
glycol ethers, methyl ethyl ketone, toluene, xylene
2020-07-08T00:00:00
2002-07-23T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-large-appliances-national-emission-standards
Large Appliances Surface Coating
These final standards implement section 112(d) of the Clean Air Act (CAA) which requires the Administrator to regulate emissions of hazardous air pollutants (HAP) listed in section 112(b) of the CAA. The intent of the standards is to protect the public by requiring new and existing major sources to control emissions to...
major sources
https://referencesource.org/neshap-source-category-crosswalk/large-appliances-surface-coating/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart PPPPPP (6P)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/lead-acid-battery-manufacturing-area-sources-national-emission
lead-acid-battery-manufacturing-area-sources
lead, cadmium
2008-03-26T00:00:00
2007-07-16T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/lead-acid-battery-manufacturing-area-sources-national-emission
Lead Acid Battery Manufacturing (area sources)
This final national emission standard for hazardous air pollutants (NESHAP) applies to new and existing lead acid battery manufacturing plants that are area sources.
area sources
https://referencesource.org/neshap-source-category-crosswalk/lead-acid-battery-manufacturing-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart TTTT
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/leather-finishing-operations-national-emission-standards-hazardous
leather-finishing-operations
glycol ethers, toluene, and xylene
2002-02-27T00:00:00
2002-02-27T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/leather-finishing-operations-national-emission-standards-hazardous
Leather Finishing Operations
This action promulgates national emission standards for hazardous air pollutants (NESHAP) for leather finishing operations. The EPA has identified these facilities as major sources of emissions of hazardous air pollutants (HAP), such as glycol ethers, toluene, and xylene. These NESHAP will implement section 112(d) of t...
major sources
https://referencesource.org/neshap-source-category-crosswalk/leather-finishing-operations/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart AAAAA
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/lime-manufacturing-plants-national-emission-standards-hazardous
lime-manufacturing
hydrogen chloride, mercury, organic hap, dioxin
2024-12-04T00:00:00
2004-01-05T00:00:00
pending
https://www.epa.gov/stationary-sources-air-pollution/lime-manufacturing-plants-national-emission-standards-hazardous
Lime Manufacturing
3/12/25 -- Trump Administration Announces Reconsideration of Air Rules Regulating American Energy, Manufacturing, Chemical Sectors (NESHAPs)
major sources
https://referencesource.org/neshap-source-category-crosswalk/lime-manufacturing/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart EE
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/magnetic-tape-manufacturing-operations-national-emission-standards
magnetic-tape-surface-coating
methyl ethyl ketone (MEK), toluene, methyl isobutyl ketone (MIBK), toluene diisocyanate, ethylene glycol, methanol, xylenes, ethyl benzene, and acetaldehyde The HAP solvents that are used to the greatest extent are MEK, toluene, and MIBK
1994-12-15T00:00:00
1994-12-15T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/magnetic-tape-manufacturing-operations-national-emission-standards
Magnetic Tape Surface Coating
This action promulgates final standards that limit the emissions of hazardous air pollutants (HAP) from existing and new magnetic tape manufacturing operations located at major sources. Magnetic tape manufacturing is part of the industrial paper coating category, which includes coating of foil and plastic film. Several...
major sources
https://referencesource.org/neshap-source-category-crosswalk/magnetic-tape-surface-coating/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart CCCC
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/manufacturing-nutritional-yeast-national-emission-standards
manufacturing-nutritional-yeast-formerly-bakers-yeast
acetaldehyde
2017-10-16T00:00:00
2001-05-21T00:00:00
pending
https://www.epa.gov/stationary-sources-air-pollution/manufacturing-nutritional-yeast-national-emission-standards
Manufacturing Nutritional Yeast (formerly Bakers Yeast)
The National Emission Standards for Hazardous Air Pollutants (NESHAP) for this sector was proposed in 1998 and promulgated in 2001. In these actions, the EPA identified acetaldehyde as the hazardous air pollutant (HAP) emitted in the largest quantities from the manufacturing of nutritional yeast. The standards for this...
major sources
https://referencesource.org/neshap-source-category-crosswalk/manufacturing-nutritional-yeast-formerly-bakers-yeast/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart Y
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/marine-vessel-loading-operations-national-emission-standards
marine-vessel-loading-operations
benzene, toluene, xylene, methanol
2011-04-21T00:00:00
1995-09-19T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/marine-vessel-loading-operations-national-emission-standards
Marine Vessel Loading Operations
This action proposes amendments that are expected to yield significant emission reduction results without imposing burdensome cost on the industry. As proposed, this action would reduce emissions of hazardous air pollutants (HAP) by approximately 280 tons annually and volatile organic compounds (VOC) by approximately 3...
major sources
https://referencesource.org/neshap-source-category-crosswalk/marine-vessel-loading-operations/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart IIIII
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/mercury-cell-chloralkali-plants-national-emissions-standards
mercury-cell-chlor-alkali-plants
mercury
2022-05-06T00:00:00
2003-12-19T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/mercury-cell-chloralkali-plants-national-emissions-standards
Mercury Cell Chlor-Alkali Plants
This action promulgates national emission standards for hazardous air pollutants (NESHAP), specifically mercury emissions, from mercury cell chlor-alkali plants. The final rule limits mercury air emissions from these plants. The final rule implements
major sources
https://referencesource.org/neshap-source-category-crosswalk/mercury-cell-chlor-alkali-plants/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 61 Subpart E
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/mercury-production-national-emissions-standard-hazardous-air
mercury-production
mercury
1987-03-19T00:00:00
1973-04-06T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/mercury-production-national-emissions-standard-hazardous-air
Mercury Production
Mercury Production:
major sources
https://referencesource.org/neshap-source-category-crosswalk/mercury-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart KKKK
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-metal-cans-national-emission-standards-hazardous
metal-can-surface-coating
glycol ethers, xylenes, hexane, and methyl isobutyl ketone (MIBK)
2003-11-13T00:00:00
2003-11-13T00:00:00
pending
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-metal-cans-national-emission-standards-hazardous
Metal Can Surface Coating
The final standards implement section 112(d) of the Clean Air Act (CAA) by requiring metal can surface coating operations to meet Hazardous Air Pollutant (HAP) emission standards reflecting the application of the maximum achievable control technology (MACT). The final rule will protect air quality and promote public he...
major sources
https://referencesource.org/neshap-source-category-crosswalk/metal-can-surface-coating/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart SSSS
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-metal-coil-national-emission-standards-hazardous
metal-coil-surface-coating
glycol ethers, xylenes (isomers and mixtures), toluene, and isophorone
2003-03-17T00:00:00
2002-06-10T00:00:00
pending
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-metal-coil-national-emission-standards-hazardous
Metal Coil Surface Coating
This action promulgates national emission standards for hazardous air pollutants (NESHAP) for new and existing sources that coat metal coil. The final rule implements section 112(d) of the Clean Air Act (CAA) and will require all new and existing metal coil coating operations that are major sources to meet HAP emission...
major sources
https://referencesource.org/neshap-source-category-crosswalk/metal-coil-surface-coating/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart XXXXXX (6X)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/metal-fabrication-and-finishing-source-categories-national
metal-fabrication-and-finishing-source-nine-categories-area-sources
cadmium, chromium, lead, manganese, nickel
2008-07-23T00:00:00
2008-07-23T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/metal-fabrication-and-finishing-source-categories-national
Metal Fabrication and Finishing Source Nine Categories (area sources)
On June 13, 2008 the Environmental Protection Agency (EPA) issued final national air toxics standards for smaller-emitting sources, known as area sources, for nine metal fabrication and finishing source categories. These standards affect any new or existing facility that performs metal fabrication or finishing operatio...
area sources
https://referencesource.org/neshap-source-category-crosswalk/metal-fabrication-and-finishing-source-nine-categories-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart RRRR
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-metal-furniture-national-emission-standards
metal-furniture-surface-coating
xylene, toluene, glycol ethers, and ethylbenzene
2019-03-15T00:00:00
2003-05-23T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-metal-furniture-national-emission-standards
Metal Furniture Surface Coating
The intent of the standards is to protect public health and the environment by requiring new and existing major sources to control emissions to the level attainable by implementing the maximum achievable control technology (MACT). Metal furniture surface coating operations emit HAP such as xylene, toluene, glycol ether...
major sources
https://referencesource.org/neshap-source-category-crosswalk/metal-furniture-surface-coating/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart DDD
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/mineral-wool-production-national-emissions-standards-hazardous-air
mineral-wool-production
null
2015-07-29T00:00:00
1999-06-01T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/mineral-wool-production-national-emissions-standards-hazardous-air
Mineral Wool Production
This rule regulates air toxics emitted from mineral wool production processes. Open and closed cupolas are regulated as are the three designs of bonded lines.
major sources
https://referencesource.org/neshap-source-category-crosswalk/mineral-wool-production/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart HHHHH
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/miscellaneous-coating-manufacturing-national-emission-standards
miscellaneous-coating-manufacturing
toluene, xylene, glycol ethers, and methyl isobutyl ketone
2023-02-22T00:00:00
2003-12-11T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/miscellaneous-coating-manufacturing-national-emission-standards
Miscellaneous Coating Manufacturing
major sources to meet hazardous air pollutant (HAP) emission standards reflecting application of the maximum achievable control technology (MACT). The HAP emitted from miscellaneous coating manufacturing facilities include toluene, xylene, glycol ethers, and methyl isobutyl ketone.
major sources
https://referencesource.org/neshap-source-category-crosswalk/miscellaneous-coating-manufacturing/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart MMMM
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-miscellaneous-metal-parts-and-products-national
miscellaneous-metal-parts-and-products-surface-coating
xylenes, toluene, methyl ethyl ketone (MEK), phenol, cresols/cresylic acid, glycol ethers (including ethylene glycol monobutyl ether(EGBE)), styrene, methyl isobutyl ketone (MIBK), and ethyl benzene
2020-07-08T00:00:00
2004-01-02T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-miscellaneous-metal-parts-and-products-national
Miscellaneous Metal Parts and Products Surface Coating
This action promulgates national emission standards for hazardous air pollutants (NESHAP) for miscellaneous metal parts and products surface coating operations located at major sources of hazardous air pollutants (HAP). The final rule implements section 112(d) of the Clean Air Act (CAA) by requiring these operations to...
major sources
https://referencesource.org/neshap-source-category-crosswalk/miscellaneous-metal-parts-and-products-surface-coating/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart AAAA
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/municipal-solid-waste-landfills-national-emission-standards
municipal-solid-waste-landfills
vinyl chloride, benzene, toluene
2022-02-03T00:00:00
2003-01-16T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/municipal-solid-waste-landfills-national-emission-standards
Municipal Solid Waste Landfills
The final rule is applicable to both major and area sources and contains the same requirements as the Emission Guidelines and New Source Performance Standards (EG/NSPS), promulgated in 1996. The final rule adds startup, shutdown, and malfunction (SSM) requirements, adds operating condition deviations for out-of-bounds ...
major sources
https://referencesource.org/neshap-source-category-crosswalk/municipal-solid-waste-landfills/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart HHH
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/natural-gas-transmission-and-storage-facilities-national-emission
natural-gas-transmission-and-storage
benzene, toluene
2012-08-16T00:00:00
1999-06-17T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/natural-gas-transmission-and-storage-facilities-national-emission
Natural Gas Transmission and Storage
See all Clean Air Act regulatory actions for oil and natural gas operations
major sources
https://referencesource.org/neshap-source-category-crosswalk/natural-gas-transmission-and-storage/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart ZZZZZZ (6Z)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/aluminum-copper-and-other-nonferrous-foundries-national-emission
nonferrous-foundries-aluminum-copper-and-other-area-sources
beryllium, cadmium, chromium, lead, manganese, nickel
2009-09-10T00:00:00
2009-06-25T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/aluminum-copper-and-other-nonferrous-foundries-national-emission
Nonferrous Foundries: Aluminum, Copper, and Other (area sources)
On June 15, 2009, the Environmental Protection Agency (EPA) finalized air toxics standards for smaller emitting aluminum foundries, copper foundries, and other nonferrous foundries. The final rule regulates emissions of a number of toxic air pollutants, such as beryllium, cadmium, chromium, lead, manganese, and nickel,...
area sources
https://referencesource.org/neshap-source-category-crosswalk/nonferrous-foundries-aluminum-copper-and-other-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart DD
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/site-waste-and-recovery-operations-oswro-national-emission
off-site-waste-recovery-operations
organic hap
2018-01-29T00:00:00
1996-07-01T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/site-waste-and-recovery-operations-oswro-national-emission
Off-Site Waste Recovery Operations
The 2015 final rule implements the Clean Air Act (CAA) section 112(d) to control hazardous air pollutants (HAP) emissions at major sources that receive certain wastes, used oil, and used solvents from off-site locations for storage, treatment, recovery, or disposal.
major sources
https://referencesource.org/neshap-source-category-crosswalk/off-site-waste-recovery-operations/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart HH
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/oil-and-natural-gas-production-facilities-national-emission
oil-and-natural-gas-production-includes-area-sources
benzene, toluene
2024-10-16T00:00:00
1999-06-17T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/oil-and-natural-gas-production-facilities-national-emission
Oil and Natural Gas Production includes Area Sources
The Environmental Protection Agency (EPA) issu ed final rules to reduce emissions of hazardous air pollutants (HAPs) from oil and natural gas production facilities as well as natural gas transmission and storage facilities. These rules implement section 112 of the Clean Air Act (CAA).
major and area sources
https://referencesource.org/neshap-source-category-crosswalk/oil-and-natural-gas-production-includes-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart VV
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/oil-water-separators-and-organic-water-separators-national
oil-water-separators-and-organic-water-separators
null
2003-06-23T00:00:00
1996-07-01T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/oil-water-separators-and-organic-water-separators-national
Oil-Water Separators and Organic-Water Separators
Rule Summary Rule History Rule Summary The provisions of this subpart apply to the control of air emissions from oil-water separators and organic-water separators for which another subpart of 40 CFR parts 60, 61, or 63 references the use of this subpart for such air emission control. These air emission standards for oi...
major sources
https://referencesource.org/neshap-source-category-crosswalk/oil-water-separators-and-organic-water-separators/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart EEEE
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/organic-liquids-distribution-national-emission-standards-hazardous
organic-liquids-distribution-non-gasoline
organic hap, toluene, methanol, benzene
2024-04-04T00:00:00
2004-02-03T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-8
Organic Liquids Distribution (non-gasoline)
Organic Liquids Distribution (non-gasoline) | 40 CFR 63 Subpart EEEE
major sources
https://referencesource.org/neshap-source-category-crosswalk/organic-liquids-distribution-non-gasoline/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart CCCCCCC (7C)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/paints-and-allied-products-manufacturing-national-emission
paints-and-allied-products-manufacturing-area-sources
benzene, methylene chloride, cadmium, chromium, lead, nickel
2010-06-03T00:00:00
2009-12-03T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/paints-and-allied-products-manufacturing-national-emission
Paints and Allied Products Manufacturing (area sources)
This rule applies to new or existing paints and allied products manufacturing operations which are area sources of one of the target hazardous air pollutants (HAP) and that process, use, or generate materials containing one or more of the following target HAP: Benzene, methylene chloride, and compounds of cadmium, chro...
area sources
https://referencesource.org/neshap-source-category-crosswalk/paints-and-allied-products-manufacturing-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart JJJJ
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/paper-and-other-web-coating-national-emission-standards-0
paper-and-other-web-surface-coating
toluene, methanol, methyl ethyl chloride, ethylene glycol, xylenes, phenol, methylene chloride, glycol ethers, hexane, methyl isobutyl ketone, cresols, cresylic acid, dimethyl formamide, vinyl acetate, formaldehyde, and ethyl benzene
2020-07-09T00:00:00
2002-12-04T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/paper-and-other-web-coating-national-emission-standards-0
Paper and Other Web Surface Coating
This action finalizes national emission standards for hazardous air pollutants (NESHAP) for facilities that coat paper and other web substrates and are major sources of hazardous air pollutants (HAP) emissions. The paper and other web coatings source category emits HAP such as: toluene, methanol, methyl ethyl chloride,...
major sources
https://referencesource.org/neshap-source-category-crosswalk/paper-and-other-web-surface-coating/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart CC
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/petroleum-refineries-national-emission-standards-hazardous-air
petroleum-refineries-cc
benzene
2013-06-20T00:00:00
1995-08-18T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/petroleum-refineries-national-emission-standards-hazardous-air
Petroleum Refineries (CC)
EPA's final rule will reduce emissions of eleven air toxics, including benzene---a human carcinogen, by 53,000 tons annually, representing a 59 percent reduction from current levels. Air toxics are those pollutants known or suspected of causing cancer or other serious health effects (e.g., reproductive effects or birth...
major sources
https://referencesource.org/neshap-source-category-crosswalk/petroleum-refineries-cc/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart GGG
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/pharmaceuticals-production-industry-national-emission-standards
pharmaceuticals-production
methylene chloride, methanol, toluene, and hydrogen chloride
2011-04-21T00:00:00
1998-09-21T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/pharmaceuticals-production-industry-national-emission-standards
Pharmaceuticals Production
Pharmaceuticals Production Industry: National Emission Standards for Hazardous Air Pollutants (NESHAP) Pharmaceuticals Production Industry: National Emission Standards for Hazardous Air Pollutants (NESHAP) Basic Information Legal Authorities 42 U.S.C. §7401 Federal Register Citations 62 FR 15754 63 FR 50280 65 FR 452 6...
major sources
https://referencesource.org/neshap-source-category-crosswalk/pharmaceuticals-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart BB
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/phosphate-fertilizer-production-plants-and-phosphoric-acid
phosphate-fertilizers
phosphoric acid, mercury
2017-09-28T00:00:00
1999-06-10T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/phosphate-fertilizer-production-plants-and-phosphoric-acid
Phosphate Fertilizers
On July 21, 2015, the Environmental Protection Agency (EPA) issued final amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Phosphoric Acid Manufacturing and Phosphate Fertilizer Production, and to the Standards of Performance (NSPS) for Phosphate Processing. The phosphoric acid man...
major sources
https://referencesource.org/neshap-source-category-crosswalk/phosphate-fertilizers/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart AA
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/phosphate-fertilizer-production-plants-and-phosphoric-acid
phosphoric-acid
phosphoric acid, mercury
2017-09-28T00:00:00
1999-06-10T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/phosphate-fertilizer-production-plants-and-phosphoric-acid
Phosphoric Acid
On July 21, 2015, the Environmental Protection Agency (EPA) issued final amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Phosphoric Acid Manufacturing and Phosphate Fertilizer Production, and to the Standards of Performance (NSPS) for Phosphate Processing. The phosphoric acid man...
major sources
https://referencesource.org/neshap-source-category-crosswalk/phosphoric-acid/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart PPPP
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-plastic-parts-and-products-national-emission
plastic-parts-surface-coating
methyl isobutyl ketone, toluene, glycol ethers, and xylenes
2020-07-08T00:00:00
2004-04-19T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/surface-coating-plastic-parts-and-products-national-emission
Plastic Parts Surface Coating
The final rule implements section 112(d) of the Clean Air Act (CAA) by requiring these operations to meet HAP emission standards reflecting the application of the maximum achievable control technology (MACT). The final rule will protect air quality and promote the public health by reducing emissions of HAP from facilit...
major sources
https://referencesource.org/neshap-source-category-crosswalk/plastic-parts-surface-coating/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart WWWWWW (6W)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/plating-and-polishing-national-emission-standards-hazardous-air
plating-and-polishing-operations-area-sources
cadmium, chromium, lead, manganese, nickel
2011-09-19T00:00:00
2008-07-01T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-8
Plating and Polishing Operations (area sources)
Plating and Polishing Operations (area sources) | 40 CFR 63 Subpart WWWWWW (6W)
area sources
https://referencesource.org/neshap-source-category-crosswalk/plating-and-polishing-operations-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart DDDD
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/plywood-and-composite-wood-products-manufacture-national-emission
plywood-and-composite-wood-products-formerly-plywood-and-particle-board-manufact
acetaldehyde, acrolein, formaldehyde, methanol
2020-08-13T00:00:00
2004-07-30T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/plywood-and-composite-wood-products-manufacture-national-emission
Plywood and Composite Wood Products (formerly Plywood and Particle Board Manufacturing)
The National Emissions Standards for Hazardous Air Pollutants (NESHAP) for this sector was originally proposed in 2003 and promulgated in 2004. In these actions, the EPA identified acetaldehyde, acrolein, formaldehyde, methanol, phenol and propionaldehyde as the main pollutants emitted from this sector. In 2007, the Un...
major sources
https://referencesource.org/neshap-source-category-crosswalk/plywood-and-composite-wood-products-formerly-plywood-and-particle-board-manufact/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart PPP
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/polyether-polyols-production-national-emission-standards-hazardous
polyether-polyols-production
ethylene oxide (EtO), propylene oxide (PO), hexane, toluene, and incidental emissions of several other HAP
2026-03-18T00:00:00
1999-06-01T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/polyether-polyols-production-national-emission-standards-hazardous
Polyether Polyols Production
Polyether polyols are used in making lubricants, adhesives, sealants, cosmetics, soaps, and feedstock polymers for urethanes production. Air toxics can be emitted at several points along the manufacturing process.
major sources
https://referencesource.org/neshap-source-category-crosswalk/polyether-polyols-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart HHHHHHH (7H)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/polyvinyl-chloride-and-copolymers-production-national-emission-0
polyvinyl-chloride-and-copolymers-production
vinyl chloride, vinylidene chloride (1,1 dichloroethylene), and vinyl acetate are emitted during the production of PVC emits
2015-02-04T00:00:00
2002-07-10T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/polyvinyl-chloride-and-copolymers-production-national-emission-0
Polyvinyl Chloride and Copolymers Production
These national emission standards for hazardous air pollutants (NESHAP) apply to new and existing sources at polyvinyl chloride and copolymer (PVC) production facilities. PVC standards were developed for both major and area sources. The EPA determined that hazardous air pollutants (HAP) such as vinyl chloride, vinylide...
major sources
https://referencesource.org/neshap-source-category-crosswalk/polyvinyl-chloride-and-copolymers-production/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart DDDDDD (6D)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/polyvinyl-chloride-and-copolymers-production-national-emission
polyvinyl-chloride-and-copolymers-production-area-sources
vinyl chloride, vinylidene chloride (1,1 dichloroethylene), and vinyl acetate are emitted during the production of PVC emits
2015-02-04T00:00:00
2007-01-23T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/polyvinyl-chloride-and-copolymers-production-national-emission
Polyvinyl Chloride and Copolymers Production (area sources)
These national emission standards for hazardous air pollutants (NESHAP) apply to new and existing sources at polyvinyl chloride and copolymer (PVC) production facilities. PVC standards were developed for both major and area sources. The EPA determined that hazardous air pollutants (HAP) such as vinyl chloride, vinylide...
area sources
https://referencesource.org/neshap-source-category-crosswalk/polyvinyl-chloride-and-copolymers-production-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart LLL
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/portland-cement-manufacturing-industry-national-emission-standards
portland-cement-manufacturing
particulate matter, organic HAP, metals through the control of particulate matter, mercury, acid gases, and dioxin/furan
2018-07-25T00:00:00
1999-06-14T00:00:00
completed
https://www.epa.gov/stationary-sources-air-pollution/portland-cement-manufacturing-industry-national-emission-standards
Portland Cement Manufacturing
3/12/25 -- Trump Administration Announces Reconsideration of Air Rules Regulating American Energy, Manufacturing, Chemical Sectors (NESHAPs)
major sources
https://referencesource.org/neshap-source-category-crosswalk/portland-cement-manufacturing/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart DDDDDDD (7D)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/prepared-feeds-manufacturing-national-emission-standards-hazardous
prepared-feeds-manufacturing-area-sources
chromium, manganese, particulate matter
2011-12-23T00:00:00
2010-01-05T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/prepared-feeds-manufacturing-national-emission-standards-hazardous
Prepared Feeds Manufacturing (area sources)
Prepared feeds manufacturing facilities, as defined by EPA’s area source rule, are facilities that emit less than 10 tons per year of a single hazardous air pollutant (HAP) or less than 25 tons per year of any combination of HAPs and add chromium (Cr) compounds or manganese (Mn) compounds to their product.
area sources
https://referencesource.org/neshap-source-category-crosswalk/prepared-feeds-manufacturing-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart LL
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/primary-aluminum-reduction-industry-national-emission-standards
primary-aluminum
carbonyl sulfide, hydrogen fluoride, metal hap, lead, nickel, manganese, mercury
2015-10-15T00:00:00
1997-10-07T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/primary-aluminum-reduction-industry-national-emission-standards
Primary Aluminum
Primary aluminum reduction plants electrolytically reduce refined bauxite to form aluminum. Once formed, the aluminum may be processed via casting (pouring molten aluminum into a mold), rolling, extrusion, etc. to meet the shape, strength and durability requirements of its final use. Aluminum is used extensively in con...
major sources
https://referencesource.org/neshap-source-category-crosswalk/primary-aluminum/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart QQQ
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/primary-copper-smelting-national-emissions-standards-hazardous-air
primary-copper-smelting
mercury, benzene, toluene, hydrogen chloride, chlorine, polycyclic aromatic hydrocarbons, naphthalene and dioxin/furans
2024-05-13T00:00:00
2002-06-12T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/primary-copper-smelting-national-emissions-standards-hazardous-air
Primary Copper Smelting
3/12/25 -- Trump Administration Announces Reconsideration of Air Rules Regulating American Energy, Manufacturing, Chemical Sectors (NESHAPs)
major sources
https://referencesource.org/neshap-source-category-crosswalk/primary-copper-smelting/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart EEEEEE (6E)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/primary-copper-smelting-area-sources-national-emissions-standards
primary-copper-smelting-area-sources
null
2007-07-03T00:00:00
2007-01-23T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/primary-copper-smelting-area-sources-national-emissions-standards
Primary Copper Smelting (area sources)
Primary copper smelting is the industry which refines copper sulfide ore concentrate from mined ore to produce anode grade copper, using pyrometallurgical processes. Pyrometallurgical processes use high temperature furnaces to smelt or refine ores to produce pure metals or metal oxides. The final rule for area sources ...
area sources
https://referencesource.org/neshap-source-category-crosswalk/primary-copper-smelting-area-sources/
[ "cfr_subpart", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart TTT
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/primary-lead-processing-national-emission-standards-hazardous-air
primary-lead-processing
lead, arsenic, antimony, cadmium
2011-11-15T00:00:00
1999-06-04T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-8
Primary Lead Processing
Primary Lead Processing | 40 CFR 63 Subpart TTT
major sources
https://referencesource.org/neshap-source-category-crosswalk/primary-lead-processing/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart TTTTT
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/primary-magnesium-refining-national-emissions-standards-hazardous
primary-magnesium-refining
chlorine, hydrochloric acid, dioxin/furan, and trace amounts of several HAP metals
2003-10-10T00:00:00
2003-10-10T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/primary-magnesium-refining-national-emissions-standards-hazardous
Primary Magnesium Refining
This action promulgates national emission standards for hazardous air pollutants (NESHAP) for primary magnesium refining facilities. The EPA has identified primary magnesium refining facilities as a major source of hazardous air pollutant (HAP)
major sources
https://referencesource.org/neshap-source-category-crosswalk/primary-magnesium-refining/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
40 CFR 63 Subpart GGGGGG (6G)
[ "epa_category_url", "source_type" ]
https://www.epa.gov/stationary-sources-air-pollution/primary-nonferrous-metals-zinc-cadmium-and-beryllium-national
primary-nonferrous-metals-zinc-cadmium-and-beryllium-area-sources
cadmium, beryllium
2007-01-23T00:00:00
2007-01-23T00:00:00
not-yet-due
https://www.epa.gov/stationary-sources-air-pollution/primary-nonferrous-metals-zinc-cadmium-and-beryllium-national
Primary Nonferrous Metals-Zinc, Cadmium, and Beryllium (area sources)
EPA issued national emission standards for hazardous air pollutants (NESHAP) for area source facilities that produce zinc, zinc oxide, cadmium, or cadmium oxide from zinc sulfide ore concentrates using pyrometallurgical techniques and area source facilities that produce beryllium metal, alloy, or oxide from beryllium o...
area sources
https://referencesource.org/neshap-source-category-crosswalk/primary-nonferrous-metals-zinc-cadmium-and-beryllium-area-sources/
[ "cfr_subpart", "key_haps_regulated", "most_recent_amendment_date", "original_final_rule_date", "rtr_status", "source_category" ]
End of preview. Expand in Data Studio

EPA NESHAP Source Category Applicability Crosswalk

Canonical, always-current version: https://referencesource.org/neshap-source-category-crosswalk/ Machine-readable: https://referencesource.org/neshap-source-category-crosswalk/data.json — this mirror is a point-in-time copy.

  • Last verified: 2026-08-15
  • Stale after: 2026-12-13 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not)
  • Records: 125

Maps each EPA NESHAP source category to its 40 CFR subpart, whether it applies to major or area sources, the original final rule date, most recent amendment, and residual risk/technology review status.

Provenance — what every record carries

Every record carries source (the URL the value was read from) and source_quote (a verbatim quote from that page stating it). A value you cannot check against its page is indistinguishable from an invented one; these can all be checked. Each record is also individually addressable on the canonical site at its url.

Licence position

unknown

Facts are not copyrightable; what this dataset takes from each source is a fact plus a short attributed quote linking back to the page that states it.

Sources

Fields

See any record in data/records.jsonl — field names are self-describing, and the canonical page for each record renders them with labels: https://referencesource.org/neshap-source-category-crosswalk/

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