Regulations last checked for updates: May 15, 2024

Title 40 - Protection of Environment last revised: May 13, 2024
All TitlesTitle 40Chapter IPart 63Subpart EEEEAppendix - Table 1 to Subpart EEEE of Part 63—Organic Hazardous Air Pollutants
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Appendix - Table 1 to Subpart EEEE of Part 63—Organic Hazardous Air Pollutants

You must use the organic HAP information listed in the following table to determine which of the liquids handled at your facility meet the HAP content criteria in the definition of Organic Liquid in § 63.2406.

Compound name CAS No. 1
2,4-D salts and esters94-75-7
Acetaldehyde75-07-0
Acetonitrile75-05-8
Acetophenone98-86-2
Acrolein107-02-8
Acrylamide79-06-1
Acrylic acid79-10-7
Acrylonitrile107-13-1
Allyl chloride107-05-1
Aniline62-53-3
Benzene71-43-2
Biphenyl92-52-4
Butadiene (1,3-)106-99-0
Carbon tetrachloride56-23-5
Chloroacetic acid79-11-8
Chlorobenzene108-90-7
2-Chloro-1,3-butadiene (Chloroprene)126-99-8
Chloroform67-66-3
m-Cresol108-39-4
o-Cresol95-48-7
p-Cresol106-44-5
Cresols/cresylic acid1319-77-3
Cumene98-82-8
Dibenzofurans132-64-9
Dibutylphthalate84-74-2
Dichloroethane (1,2-) (Ethylene dichloride) (EDC)107-06-2
Dichloropropene (1,3-)542-75-6
Diethanolamine111-42-2
Diethyl aniline (N,N-)121-69-7
Diethylene glycol monobutyl ether112-34-5
Diethylene glycol monomethyl ether111-77-3
Diethyl sulfate64-67-5
Dimethyl formamide68-12-2
Dimethylhydrazine (1,1-)57-14-7
Dioxane (1,4-) (1,4-Diethyleneoxide)123-91-1
Epichlorohydrin (1-Chloro-2,3-epoxypropane)106-89-8
Epoxybutane (1,2-)106-88-7
Ethyl acrylate140-88-5
Ethylbenzene100-41-4
Ethyl chloride (Chloroethane)75-00-3
Ethylene dibromide (Dibromomethane)106-93-4
Ethylene glycol107-21-1
Ethylene glycol dimethyl ether110-71-4
Ethylene glycol monomethyl ether109-86-4
Ethylene glycol monomethyl ether acetate110-49-6
Ethylene glycol monophenyl ether122-99-6
Ethylene oxide75-21-8
Ethylidene dichloride (1,1-Dichloroethane)75-34-3
Formaldehyde50-00-0
Hexachloroethane67-72-1
Hexane110-54-3
Hydroquinone123-31-9
Isophorone78-59-1
Maleic anhydride108-31-6
Methanol67-56-1
Methyl chloride (Chloromethane)74-87-3
Methylene chloride (Dichloromethane)75-09-2
Methylenedianiline (4,4′-)101-77-9
Methylene diphenyl diisocyanate101-68-8
Methyl hydrazine60-34-4
Methyl isobutyl ketone (Hexone) (MIBK)108-10-1
Methyl methacrylate80-62-6
Methyl tert-butyl ether (MTBE)1634-04-4
Naphthalene91-20-3
Nitrobenzene98-95-3
Phenol108-9-52
Phthalic anhydride85-44-9
Polycyclic organic matter50-32-8
Propionaldehyde123-38-6
Propylene dichloride (1,2-Dichloropropane)78-87-5
Propylene oxide75-56-9
Quinoline91-22-5
Styrene100-42-5
Styrene oxide96-09-3
Tetrachloroethane (1,1,2,2-)79-34-5
Tetrachloroethylene (Perchloroethylene)127-18-4
Toluene108-88-3
Toluene diisocyanate (2,4-)584-84-9
o-Toluidine95-53-4
Trichlorobenzene (1,2,4-)120-82-1
Trichloroethane (1,1,1-) (Methyl chloroform)71-55-6
Trichloroethane (1,1,2-) (Vinyl trichloride)79-00-5
Trichloroethylene79-01-6
Triethylamine121-44-8
Trimethylpentane (2,2,4-)540-84-1
Vinyl acetate108-05-4
Vinyl chloride (Chloroethylene)75-01-4
Vinylidene chloride (1,1-Dichloroethylene)75-35-4
Xylene (m-)108-38-3
Xylene (o-)95-47-6
Xylene (p-)106-42-3
Xylenes (isomers and mixtures)1330-20-7

1 CAS numbers refer to the Chemical Abstracts Services registry number assigned to specific compounds, isomers, or mixtures of compounds.

[69 FR 5063, Feb. 3, 2004, as amended at 71 FR 42913, July 28, 2006]
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.
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