Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. of
Sub-Agency 0002 - Air Quality
Chapter 5 - National Emission Standards
Section 5-3 - National Emission Standards for Hazardous Air Pollutants

Universal Citation: WY Code of Rules 5-3

Current through September 21, 2024

(a) General: The U.S. Environmental Protection Agency regulations on national emission standards for hazardous air pollutants (NESHAP), established pursuant to section 112 of the Act as amended November 15, 1990, and amended by the word or phrase "substitutions" given in Chapter 5, Section 3(c) are incorporated into these regulations. The specific documents containing the complete text of the regulations are found in 40 CFR Part 63 . The standards designated in Chapter 5, Section 3(b) regulate specific categories of stationary sources that emit (or have the potential to emit) one or more of the hazardous air pollutants listed pursuant to section 112(b) of the Act, and presented in subsection (c)(i)(A) of Chapter 5, Section 3.

(b) Designated National Emission Standards for Hazardous Air Pollutants: The following standards for hazardous air pollutants, as revised and published in 40 CFR Part 63, are incorporated by reference under Section 4(a) of this Chapter.

40 CFR Part 63, subpart A -

General Provisions

40 CFR Part 63, subpart D -

Regulations Governing Compliance Extensions for Early Reductions of Hazardous Air Pollutants

40 CFR Part 63, subpart F -

National Emission Standards for Organic Hazardous Air Pollutants From the Synthetic Organic Chemical Manufacturing Industry

40 CFR Part 63, subpart G -

National Emission Standards for Organic Hazardous Air Pollutants From the Synthetic Organic Chemical Manufacturing Industry for Process Vents, Storage Vessels, Transfer Operations, and Wastewater

40 CFR Part 63, subpart H -

National Emission Standards for Organic Hazardous Air Pollutants for Equipment Leaks

40 CFR Part 63, subpart M -

National Perchloroethylene Air Emission Standards for Dry Cleaning Facilities

40 CFR Part 63, subpart N -

National Emission Standards for +Chromium Emissions From Hard and Decorative Chromium Electroplating and Chromium Anodizing Tanks

40 CFR Part 63, subpart R -

National Emission Standards for Gasoline Distribution Facilities (Bulk Gasoline Terminals and Pipeline Breakout Stations)

40 CFR Part 63, subpart T -

National Emission Standards for Halogenated Solvent Cleaning

40 CFR Part 63, subpart AA -

National Emission Standards for Hazardous Air Pollutants From Phosphoric Acid Manufacturing Plants

40 CFR Part 63, subpart BB -

National Emission Standards for Hazardous Air Pollutants From Phosphate Fertilizers Production Plants

40 CFR Part 63, subpart CC -

National Emission Standards for Hazardous Air Pollutants From Petroleum Refineries

40 CFR Part 63, subpart HH -

National Emission Standards for Hazardous Air Pollutants From Oil and Natural Gas Production Facilities

40 CFR Part 63, subpart JJ -

National Emission Standards for Wood Furniture Manufacturing Operations

40 CFR Part 63, subpart OO -

National Emission Standards for Tanks - Level 1

40 CFR Part 63, subpart PP -

National Emission Standards for Containers

40 CFR Part 63, subpart QQ -

National Emission Standards for Surface Impoundments

40 CFR Part 63, subpart RR -

National Emission Standards for Individual Drain Systems

40 CFR Part 63, subpart SS -

National Emission Standards for Closed Vent Systems, Control Devices, Recovery Devices and Routing to a Fuel Gas System or a Process

40 CFR Part 63, subpart TT -

National Emission Standards for Equipment Leaks - Control Level 1

40 CFR Part 63, subpart UU -

National Emission Standards for Equipment Leaks - Control Level 2 Standards

40 CFR Part 63, subpart VV -

National Emission Standards for Oil-Water Separators and Organic-Water Separators

40 CFR Part 63, subpart WW -

National Emission Standards for Storage Vessels (Tanks) - Control Level 2

40 CFR Part 63, subpart YY -

National Emission Standards for Hazardous Air Pollutants for Source Categories: Generic Maximum Achievable Control Technology Standards

40 CFR Part 63, subpart EEE -

National Emission Standards for Hazardous Air Pollutants from Hazardous Waste Combustors

40 CFR Part 63, subpart HHH -

National Emission Standards for Hazardous Air Pollutants From Natural Gas Transmission and Storage Facilities

40 CFR Part 63, subpart LLL -

National Emission Standards for Hazardous Air Pollutants From the Portland Cement Manufacturing Industry

40 CFR Part 63, subpart UUU -

National Emission Standards for Hazardous Air Pollutants for Petroleum Refineries: Catalytic Cracking Units, Catalytic Reforming Units, and Sulfur Recovery Units

40 CFR Part 63, subpart VVV -

National Emission Standards for Hazardous Air Pollutants: Publicly Owned Treatment Works

40 CFR Part 63, subpart AAAA -

National Emission Standards for Hazardous Air Pollutants: Municipal Solid Waste Landfills

40 CFR Part 63, subpart EEEE -

National Emission Standards for Hazardous Air Pollutants: Organic Liquids Distribution (Non-Gasoline)

40 CFR Part 63, subpart KKKK -

National Emission Standards for Hazardous Air Pollutants: Surface Coating of Metal Cans

40 CFR Part 63, subpart TTTT -

National Emission Standards for Hazardous Air Pollutants for Leather Finishing Operations

40 CFR Part 63, subpart YYYY -

National Emission Standards for Hazardous Air Pollutants for Stationary Combustion Turbines

40 CFR Part 63, subpart ZZZZ -

National Emission Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines

40 CFR Part 63, subpart AAAAA -

National Emissions Standards for Hazardous Air Pollutants for Lime Manufacturing Plants

40 CFR Part 63, subpart DDDDD -

National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters

40 CFR Part 63, subpart GGGGG -

National Emission Standards for Hazardous Air Pollutants: Site Remediation

40 CFR Part 63, subpart MMMMM -

National Emission Standards for Hazardous Air Pollutants: Flexible Polyurethane Foam Fabrication Operations

40 CFR Part 63, subpart NNNNN -

National Emission Standards for Hazardous Air Pollutants: Hydrochloric Acid Production

40 CFR Part 63, subpart UUUUU -

National Emission Standards for Hazardous Air Pollutants: Coal-and Oil-Fired Electric Utility Steam Generating Units

40 CFR Part 63, subpart BBBBBB -

National Emission Standards for Hazardous Air Pollutants for Source Category: Gasoline Distribution Bulk Terminals, Bulk Plants, and Pipeline Facilities

40 CFR Part 63, subpart CCCCCC -

National Emission Standards for Hazardous Air Pollutants for Source Category: Gasoline Dispensing Facilities

40 CFR Part 63, subpart JJJJJJ -

National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers Area Sources

40 CFR Part 63, subpart WWWWWW -

National Emission Standards for Hazardous Air Pollutants: Area Source Standards for Plating and Polishing Operations

40 CFR Part 63, subpart XXXXXX -

National Emission Standards for Hazardous Air Pollutants: Area Source Standards for Nine Metal Fabrication and Finishing Source Categories
(i) Designated Appendices: The following appendices are incorporated by reference under Section 4(a) of this Chapter.

40 CFR Part 63, Appendix A - Test Methods

40 CFR Part 63, Appendix B - Sources Defined For Early Reduction Provisions

40 CFR Part 63, Appendix C - Determination of the Fraction Biodegraded (Fbio) in a Biological Treatment Unit

40 CFR Part 63, Appendix D - Alternative Validation Procedure for EPA Waste and Wastewater Methods

40 CFR Part 63, Appendix E - Monitoring Procedure for Nonthoroughly Mixed Open Biological Treatment Systems at Kraft Pulp Mills Under Unsafe Sampling Conditions

(c) Initial Applicability Determination For This Section.

(i) The provisions of this section apply to the owner or operator of any stationary source that:
(A) Emits or has the potential to emit any hazardous air pollutant listed in or pursuant to section 112(b) of the Act, and identified below:

CAS Number

Chemical Name

75070

Acetaldehyde

60355

Acetamide

75058

Acetonitrile

98862

Acetophenone

53963

2-Acetylaminofluorene

107028

Acrolein

79061

Acrylamide

79107

Acrylic acid

107131

Acrylonitrile

107051

Allyl chloride

92671

4-Aminobiphenyl

62533

Aniline

90040

o-Anisidine

1332214

Asbestos

71432

Benzene (including benzene from gasoline)

92875

Benzidine

98077

Benzotrichloride

100447

Benzyl chloride

92524

Biphenyl

117817

Bis(2-ethylhexyl)phthalate (DEHP)

542881

Bis(chloromethyl)ether

75252

Bromoform

106945

1-bromopropane (1-BP)

106990

1,3-Butadiene

156627

Calcium cyanamide

133062

Captan

63252

Carbaryl

75150

Carbon disulfide

56235

Carbon tetrachloride

463581

Carbonyl sulfide

120809

Catechol

133904

Chloramben

57749

Chlordane

7782505

Chlorine

79118

Chloroacetic acid

532274

2-Chloroacetophenone

108907

Chlorobenzene

510156

Chlorobenzilate

67663

Chloroform

107302

Chloromethyl methyl ether

126998

Chloroprene

1319773

Cresols/Cresylic acid (isomers and mixture)

95487

o-Cresol

108394

m-Cresol

106445

p-Cresol

98828

Cumene

94757

2,4-D, salts and esters

3547044

DDE

334883

Diazomethane

132649

Dibenzofurans

96128

1,2-Dibromo-3-chloropropane

84742

Dibutylphthalate

106467

1,4-Dichorobenzene(p)

91941

3,3-Dichlorobenzidene

111444

Dichloroethyl ether (Bis(2-chloroethyl)ether)

542756

1,3-Dichloropropene

62737

Dichlorvos

111422

Diethanolamine

121697

N,N-Diethyl aniline (N,N-Dimethylaniline)

64675

Diethyl sulfate

119904

3,3-Dimethoxybenzidine

60117

Dimethyl aminoazobenzene

119937

3,3-Dimethyl benzidine

79447

Dimethyl carbamoyl chloride

68122

Dimethyl formamide

57147

1,1-Dimethyl hydrazine

131113

Dimethyl phthalate

77781

Dimethyl sulfate

534521

4,6-Dinitro-o-cresol, and salts

51285

2,4-Dinitrophenol

121142

2,4-Dinitrotoluene

123911

1,4-Dioxane (1,4-Diethyleneoxide)

122667

1,2-Diphenylhydrazine

106898

Epichlorohydrin (l-Chloro-2,3-epoxypropane)

106887

1,2-Epoxybutane

140885

Ethyl acrylate

100414

Ethyl benzene

51796

Ethyl carbamate (Urethane)

75003

Ethyl chloride (Chloroethane)

106934

Ethylene dibromide (Dibromoethane)

107062

Ethylene dichloride (1,2-Dichloroethane)

107211

Ethylene glycol

151564

Ethylene imine (Aziridine)

75218

Ethylene oxide

96457

Ethylene thiourea

75343

Ethylidene dichloride (1,1-Dichloroethane)

50000

Formaldehyde

76448

Heptachlor

118741

Hexachlorobenzene

87683

Hexachlorobutadiene

77474

Hexachlorocyclopentadiene

67721

Hexachloroethane

822060

Hexamethylene-1, 6-diisocyanate

680319

Hexamethylphosphoramide

110543

Hexane

302012

Hydrazine

7647010

Hydrochloric acid

7664393

Hydrogen fluoride (Hydrofluoric acid)

123319

Hydroquinone

78591

Isophorone

58899

Lindane (all isomers)

108316

Maleic anhydride

67561

Methanol

72435

Methoxychlor

74839

Methyl bromide (Bromomethane)

74873

Methyl chloride (Chloromethane)

71556

Methyl chloroform (1,1,1-Trichloroethane)

60344

Methyl hydrazine

74884

Methyl iodide (Iodomethane)

108101

Methyl isobutyl ketone (Hexone)

624839

Methyl isocyanate

80626

Methyl methacrylate

1634044

Methyl tert butyl ether

101144

4,4-Methylene bis(2-chloroaniline)

75092

Methylene chloride (Dichloromethane)

101688

Methylene diphenyl diisocyanate (MDI)

101779

4,4-Methylenedianiline

91203

Naphthalene

98953

Nitrobenzene

92933

4-Nitrobiphenyl

100027

4-Nitrophenol

79469

2-Nitropropane

684935

N-Nitroso-N-methylurea

62759

N-Nitrosodimethylamine

59892

N-Nitrosomorpholine

56382

Parathion

82688

Pentachloronitrobenzene (Quintobenzene)

87865

Pentachlorophenol

108952

Phenol

106503

p-Phenylenediamine

75445

Phosgene

7803512

Phosphine

7723140

Phosphorus

85449

Phthalic anhydride

1336363

Polychlorinated biphenyls (Aroclors)

1120714

1,3-Propane sultone

57578

beta-Propiolactone

123386

Propionaldehyde

114261

Propoxur (Baygon)

78875

Propylene dichloride (1,2-Dichloropropane)

75569

Propylene oxide

75558

1,2-Propylenimine (2-Methyl aziridine)

91225

Quinoline

106514

Quinone

100425

Styrene

96093

Styrene oxide

1746016

2,3,7,8-Tetrachlorodibenzo-p-dioxin

79345

1,1,2,2-Tetrachloroethane

127184

Tetrachloroethylene (Perchloroethylene)

7550450

Titanium tetrachloride

108883

Toluene

95807

2,4-Toluene diamine

584849

2,4-Toluene diisocyanate

95534

o-Toluidine

8001352

Toxaphene (chlorinated camphene)

120821

1,2,4-Trichlorobenzene

79005

1,1,2-Trichloroethane

79016

Trichloroethylene

95954

2,4,5-Trichlorophenol

88062

2,4,6-Trichlorophenol

121448

Triethylamine

1582098

Trifluralin

540841

2,2,4-Trimethylpentane

108054

Vinyl acetate

593602

Vinyl bromide

75014

Vinyl chloride

75354

Vinylidene chloride (1,1-Dichloroethylene)

95476

o-Xylenes

108383

m-Xylenes

106423

p-Xylenes

0

Antimony Compounds

0

Arsenic Compounds (inorganic including arsine)

0

Beryllium Compounds

0

Cadmium Compounds

0

Chromium Compounds

0

Cobalt Compounds

0

Coke Oven Emissions

0

Cyanide Compounds *1

0

Glycol ethers *2

0

Lead Compounds

0

Manganese Compounds

0

Mercury Compounds

0

Fine mineral fibers *3

0

Nickel Compounds

0

Polycylic Organic Matter *4

0

Radionuclides (including radon) *5

0

Selenium Compounds

NOTE: For all listings above which contain the word "compounds" and for glycol ethers, the following applies: Unless otherwise specified, these listings are defined as including any unique chemical substance that contains the named chemical (i.e., antimony, arsenic, etc.) as part of that chemical's infrastructure.

*1 X'CN where X=H' or any other group where a formal dissociation may occur. For example KCN or Ca(CN)2

*2 Includes mono- and di- ethers of ethylene glycol, diethylene glycol, and triethylene glycol R-(OCH2CH2)n-OR' where

n = 1, 2, or 3

R = alkyl C7 or less; or

R = phenyl or alkyl substituted phenyl;

R' = H or alkyl C7 or less; or

OR' consisting of carboxylic acid ester, sulfate, phosphate, nitrate, or sulfonate.

*3 Includes mineral fiber emissions from facilities manufacturing or processing glass, rock, or slag fibers (or other mineral derived fibers) of average diameter 1 micrometer or less.

*4 Includes organic compounds with more than one benzene ring, and which have a boiling point greater than or equal to 100°C.

*5 A type of atom which spontaneously undergoes radioactive decay. and,

(B) Is subject to any standard, limitation, prohibition, or other federally enforceable requirement established pursuant to 40 CFR Part 63.

(ii) In addition to complying with the provisions of this section, the owner or operator of any such source may need to obtain a permit for modification or construction in accordance with Chapter 6, Section 2 of the WAQSR. The owner or operator may also need to obtain an operating permit issued in accordance with Chapter 6, Section 3 of the WAQSR.

(d) General provisions for the subparts listed in Chapter 5, Section 3(b) are contained in Subpart A of 40 CFR Part 63 and are incorporated by reference under Section 4(a) of this chapter, unless superseded by requirements in the specific subparts.

Disclaimer: These regulations may not be the most recent version. Wyoming may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.