CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER J—SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY RIGHT-TO-KNOW PROGRAMS (Parts 300–375) > PART 302—DESIGNATION, REPORTABLE QUANTITIES, AND NOTIFICATION > 302.4—Designation of hazardous substances.

302.4—Designation of hazardous substances.

(a) Listed hazardous substances. The elements and compounds and hazardous wastes appearing in table 302.4 are designated as hazardous substances under section 102(a) of the Act.
(b) Unlisted hazardous substances. A solid waste, as defined in 40 CFR 261.2, which is not excluded from regulation as a hazardous waste under 40 CFR 261.4(b), is a hazardous substance under section 101(14) of the Act if it exhibits any of the characteristics identified in 40 CFR 261.20 through 261.24.

Code of Federal Regulations

Note: The numbers under the column headed “CASRN” are the Chemical Abstracts Service Registry Numbers for each hazardous substance. The “Statutory Code” column indicates the statutory source for designating each substance as a CERCLA hazardous substance: “1” indicates that the statutory source is section 311(b)(2) of the Clean Water Act, “2” indicates that the source is section 307(a) of the Clean Water Act, “3” indicates that the source is section 112 of the Clean Air Act, and “4” indicates that the source is section 3001 of the Resource Conservation and Recovery Act (RCRA). The “RCRA Waste Number” column provides the waste identification numbers assigned to various substances by RCRA regulations. The “Pounds (kg)” column provides the reportable quantity adjustment for each hazardous substance in pounds and kilograms. Appendix A to § 302.4 , which lists CERCLA hazardous substances in sequential order by CASRN, provides a per-substance grouping of regulatory synonyms (i.e., names by which each hazardous substance is identified in other statutes and their implementing regulations).
Table 302.4—List of Hazardous Substances and Reportable Quantities
[Note: All Comments/Notes Are Located at the End of This Table]
Hazardous substance CASRN Statutorycode† RCRAwasteNo. Final RQpounds (Kg)
A2213 30558431 4 U394 5000 (2270)
Acenaphthene 83-32-9 2 100 (45.4)
Acenaphthylene 208-96-8 2 5000 (2270)
Acetaldehyde 75-07-0 1,3,4 U001 1000 (454)
Acetaldehyde, chloro- 107-20-0 4 P023 1000 (454)
Acetaldehyde, trichloro- 75-87-6 4 U034 5000 (2270)
Acetamide 60-35-5 3 100 (45.4)
Acetamide, N-(aminothioxomethyl)- 591-08-2 4 P002 1000 (454)
Acetamide, N-(4-ethoxyphenyl)- 62-44-2 4 U187 100 (45.4)
Acetamide, N-9H-fluoren-2-yl- 53-96-3 3,4 U005 1 (0.454)
Acetamide, 2-fluoro- 640-19-7 4 P057 100 (45.4)
Acetic acid 64-19-7 1 5000 (2270)
Acetic acid, (2,4-dichlorophenoxy)-, salts & esters 94-75-7 1,3,4 U240 100 (45.4)
Acetic acid, ethyl ester 141-78-6 4 U112 5000 (2270)
Acetic acid, fluoro-, sodium salt 62-74-8 4 P058 10 (4.54)
Acetic acid, lead(2 ) salt 301-04-2 1,4 U144 10 (4.54)
Acetic acid, thallium(1 ) salt 563-68-8 4 U214 100 (45.4)
Acetic acid, (2,4,5-trichlorophenoxy)- 93-76-5 1,4 See F027 1000 (454)
Acetic anhydride 108-24-7 1 5000 (2270)
Acetone 67-64-1 4 U002 5000 (2270)
Acetone cyanohydrin 75-86-5 1,4 P069 10 (4.54)
Acetonitrile 75-05-8 3,4 U003 5000 (2270)
Acetophenone 98-86-2 3,4 U004 5000 (2270)
2-Acetylaminofluorene 53-96-3 3,4 U005 1 (0.454)
Acetyl bromide 506-96-7 1 5000 (2270)
Acetyl chloride 75-36-5 1,4 U006 5000 (2270)
1-Acetyl-2-thiourea 591-08-2 4 P002 1000 (454)
Acrolein 107-02-8 1,2,3,4 P003 1 (0.454)
Acrylamide 79-06-1 3,4 U007 5000 (2270)
Acrylic acid 79-10-7 3,4 U008 5000 (2270)
Acrylonitrile 107-13-1 1,2,3,4 U009 100 (45.4)
Adipic acid 124-04-9 1 5000 (2270)
Aldicarb 116-06-3 4 P070 1 (0.454)
Aldicarb sulfone 1646884 4 P203 100 (45.4)
Aldrin 309-00-2 1,2,4 P004 1 (0.454)
Allyl alcohol 107-18-6 1,4 P005 100 (45.4)
Allyl chloride 107-05-1 1,3 1000 (454)
Aluminum phosphide 20859-73-8 4 P006 100 (45.4)
Aluminum sulfate 10043-01-3 1 5000 (2270)
4-Aminobiphenyl 92-67-1 3 1 (0.454)
5-(Aminomethyl)-3-isoxazolol 2763-96-4 4 P007 1000 (454)
4-Aminopyridine 504-24-5 4 P008 1000 (454)
Amitrole 61-82-5 4 U011 10 (4.54)
Ammonia 7664-41-7 1 100 (45.4)
Ammonium acetate 631-61-8 1 5000 (2270)
Ammonium benzoate 1863-63-4 1 5000 (2270)
Ammonium bicarbonate 1066-33-7 1 5000 (2270)
Ammonium bichromate 7789-09-5 1 10 (4.54)
Ammonium bifluoride 1341-49-7 1 100 (45.4)
Ammonium bisulfilte 10192-30-0 1 5000 (2270)
Ammonium carbamate 1111-78-0 1 5000 (2270)
Ammonium carbonate 506-87-6 1 5000 (2270)
Ammonium chloride 12125-02-9 1 5000 (2270)
Ammonium chromate 7788-98-9 1 10 (4.54)
Ammonium citrate, dibasic 3012-65-5 1 5000 (2270)
Ammonium fluoborate 13826-83-0 1 5000 (2270)
Ammonium fluoride 12125-01-8 1 100 (45.4)
Ammonium hydroxide 1336-21-6 1 1000 (454)
Ammonium oxalate 6009-70-75972-73-6 14258-49-2 1 5000 (2270)
Ammonium picrate 131-74-8 4 P009 10 (4.54)
Ammonium silicofluoride 16919-19-0 1 1000 (454)
Ammonium sulfamate 7773-06-0 1 5000 (2270)
Ammonium sulfide 12135-76-1 1 100 (45.4)
Ammonium sulfite 10196-04-0 1 5000 (2270)
Ammonium tartrate 14307-43-83164-29-2 1 5000 (2270)
Ammonium thiocyanate 1762-95-4 1 5000 (2270)
Ammonium vanadate 7803-55-6 4 P119 1000 (454)
Code of Federal Regulations 284
Amyl acetate 628-63-7 1 5000 (2270)
iso-Amyl acetate 123-92-2
sec-Amyl acetate 626-38-0
tert-Amyl acetate 625-16-1
Aniline 62-53-3 1,3,4 U012 5000 (2270)
o-Anisidine 90-04-0 3 100 (45.4)
Anthracene 120-12-7 2 5000 (2270)
Antimony†† 7440-36-0 2 5000 (2270)
ANTIMONY AND COMPOUNDS N.A. 2,3 **
Antimony Compounds N.A. 2,3 **
Antimony pentachloride 7647-18-9 1 1000 (454)
Antimony potassium tartrate 28300-74-5 1 100 (45.4)
Antimony tribromide 7789-61-9 1 1000 (454)
Antimony trichloride 10025-91-9 1 1000 (454)
Antimony trifluoride 7783-56-4 1 1000 (454)
Antimony trioxide 1309-64-4 1 1000 (454)
Argentate(1-), bis(cyano-C)-, potassium 506-61-6 4 P099 1 (0.454)
Aroclor 1016 12674-11-2 1,2,3 1 (0.454)
Aroclor 1221 11104-28-2 1,2,3 1 (0.454)
Aroclor 1232 11141-16-5 1,2,3 1 (0.454)
Aroclor 1242 53469-21-9 1,2,3 1 (0.454)
Aroclor 1248 12672-29-6 1,2,3 1 (0.454)
Aroclor 1254 11097-69-1 1,2,3 1 (0.454)
Aroclor 1260 11096-82-5 1,2,3 1 (0.454)
Aroclors 1336-36-3 1,2,3 1 (0.454)
Arsenic†† 7440-38-2 2,3 1 (0.454)
Arsenic acid H3AsO4 7778-39-4 4 P010 1 (0.454)
ARSENIC AND COMPOUNDS N.A. 2,3 **
Arsenic Compounds (inorganic including arsine) N.A. 2,3 **
Arsenic disulfide 1303-32-8 1 1 (0.454)
Arsenic oxide As2O3 1327-53-3 1,4 P012 1 (0.454)
Arsenic oxide As2O5 1303-28-2 1,4 P011 1 (0.454)
Arsenic pentoxide 1303-28-2 1,4 P011 1 (0.454)
Arsenic trichloride 7784-34-1 1 1 (0.454)
Arsenic trioxide 1327-53-3 1,4 P012 1 (0.454)
Arsenic trisulfide 1303-33-9 1 1 (0.454)
Arsine, diethyl- 692-42-2 4 P038 1 (0.454)
Arsinic acid, dimethyl- 75-60-5 4 U136 1 (0.454)
Arsonous dichloride, phenyl- 696-28-6 4 P036 1 (0.454)
Asbestos††† 1332-21-4 2,3 1 (0.454)
Auramine 492-80-8 4 U014 100 (45.4)
Azaserine 115-02-6 4 U015 1 (0.454)
Aziridine 151-56-4 3,4 P054 1 (0.454)
Aziridine, 2-methyl- 75-55-8 3,4 P067 1 (0.454)
Azirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione, 6-amino-8-[[( aminocarbonyl)oxy]methyl]-1,1a,2,8,8a,8b- hexahydro-8a-methoxy-5- methyl-,[1aS- (1aalpha,8beta,8aalpha, 8balpha)]- 50-07-7 4 U010 10 (4.54)
Barban 101279 4 U280 10 (4.54)
Barium cyanide 542-62-1 1,4 P013 10 (4.54)
Bendiocarb 22781233 4 U278 100 (45.4)
Bendiocarb phenol 22961826 4 U364 1000 (454)
Benomyl 17804352 4 U271 10 (4.54)
Benz[j]aceanthrylene, 1,2-dihydro-3-methyl- 56-49-5 4 U157 10 (4.54)
Benz[c]acridine 225-51-4 4 U016 100 (45.4)
Benzal chloride 98-87-3 4 U017 5000 (2270)
Benzamide, 3,5-dichloro-N-(1,1-dimethyl-2propynyl)- 23950-58-5 4 U192 5000 (2270)
Benz[a]anthracene 56-55-3 2,4 U018 10 (4.54)
1,2-Benzanthracene 56-55-3 2,4 U018 10 (4.54)
Benz[a]anthracene, 7,12-dimethyl- 57-97-6 4 U094 1 (0.454)
Benzenamine 62-53-3 1,3,4 U012 5000 (2270)
Benzenamine, 4,4′-carbonimidoylbis (N,N dimethyl- 492-80-8 4 U014 100 (45.4)
Benzenamine, 4-chloro- 106-47-8 4 P024 1000 (454)
Benzenamine, 4-chloro-2-methyl-, hydrochloride 3165-93-3 4 U049 100 (45.4)
Benzenamine, N,N-dimethyl-4-(phenylazo)- 60-11-7 3,4 U093 10 (4.54)
Benzenamine, 2-methyl- 95-53-4 3,4 U328 100 (45.4)
Benzenamine, 4-methyl- 106-49-0 4 U353 100 (45.4)
Benzenamine, 4,4′-methylenebis [2-chloro- 101-14-4 3,4 U158 10 (4.54)
Benzenamine, 2-methyl-,hydrochloride 636-21-5 4 U222 100 (45.4)
Code of Federal Regulations 285
Benzenamine, 2-methyl-5-nitro- 99-55-8 4 U181 100 (45.4)
Benzenamine, 4-nitro- 100-01-6 4 P077 5000 (2270)
Benzene a 71-43-2 1,2,3,4 U019 10 (4.54)
Benzeneacetic acid, 4-chloro-α-(4-chlorophenyl)-α-hydroxy-, ethyl ester 510-15-6 3,4 U038 10 (4.54)
Benzene, 1-bromo-4-phenoxy- 101-55-3 2,4 U030 100 (45.4)
Benzenebutanoic acid, 4-[bis(2- chloroethyl)amino]- 305-03-3 4 U035 10 (4.54)
Benzene, chloro- 108-90-7 1,2,3,4 U037 100 (45.4)
Benzene, (chloromethyl)- 100-44-7 1,3,4 P028 100 (45.4)
Benzenediamine, ar-methyl- 95-80-7496-72-0 823-40-5 25376-45-8 3,4 U221 10 (4.54)
1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester 117-81-7 2,3,4 U028 100 (45.4)
1,2-Benzenedicarboxylic acid, dibutyl ester 84-74-2 1,2,3,4 U069 10 (4.54)
1,2-Benzenedicarboxylic acid, diethyl ester 84-66-2 2,4 U088 1000 (454)
1,2-Benzenedicarboxylic acid, dimethyl ester 131-11-3 2,3,4 U102 5000 (2270)
1,2-Benzenedicarboxylic acid, dioctyl ester 117-84-0 2,4 U107 5000 (2270)
Benzene, 1,2-dichloro- 95-50-1 1,2,4 U070 100 (45.4)
Benzene, 1,3-dichloro- 541-73-1 2,4 U071 100 (45.4)
Benzene, 1,4-dichloro- 106-46-7 1,2,3,4 U072 100 (45.4)
Benzene, 1,1′-(2,2-dichloroethylidene) bis[4-chloro- 72-54-8 1,2,4 U060 1 (0.454)
Benzene, (dichloromethyl)- 98-87-3 4 U017 5000 (2270)
Benzene, 1,3-diisocyanatomethyl- 91-08-7584-84-9 26471-62-5 3,4 U223 100 (45.4)
Benzene, dimethyl- 1330-20-7 1,3,4 U239 100 (45.4)
1,3-Benzenediol 108-46-3 1,4 U201 5000 (2270)
1,2-Benzenediol,4-[1-hydroxy-2-(methyl amino)ethyl]- 51-43-4 4 P042 1000 (454)
Benzeneethanamine, alpha,alpha-dimethyl- 122-09-8 4 P046 5000 (2270)
Benzene, hexachloro- 118-74-1 2,3,4 U127 10 (4.54)
Benzene, hexahydro- 110-82-7 1,4 U056 1000 (454)
Benzene, methyl- 108-88-3 1,2,3,4 U220 1000 (454)
Benzene, 1-methyl-2,4-dinitro- 121-14-2 1,2,3,4 U105 10 (4.54)
Benzene, 2-methyl-1,3-dinitro- 606-20-2 1,2,4 U106 100 (45.4)
Benzene, (1-methylethyl)- 98-82-8 3,4 U055 5000 (2270)
Benzene, nitro- 98-95-3 1,2,3,4 U169 1000 (454)
Benzene, pentachloro- 608-93-5 4 U183 10 (4.54)
Benzene, pentachloronitro- 82-68-8 3,4 U185 100 (45.4)
Benzenesulfonic acid chloride 98-09-9 4 U020 100 (45.4)
Benzenesulfonyl chloride 98-09-9 4 U020 100 (45.4)
Benzene,1,2,4,5-tetrachloro- 95-94-3 4 U207 5000 (2270)
Benzenethiol 108-98-5 4 P014 100 (45.4)
Benzene,1,1′-(2,2,2-trichloroethylidene) bis[4-chloro- 50-29-3 1,2,4 U061 1 (0.454)
Benzene,1,1′-(2,2,2-trichloroethylidene) bis[4-methoxy- 72-43-5 1,3,4 U247 1 (0.454)
Benzene, (trichloromethyl)- 98-07-7 3,4 U023 10 (4.54)
Benzene, 1,3,5-trinitro- 99-35-4 4 U234 10 (4.54)
Benzidine 92-87-5 2,3,4 U021 1 (0.454)
Benzo[a]anthracene 56-55-3 2,4 U018 10 (4.54)
1,3-Benzodioxole, 5-(1-propenyl)-1 120-58-1 4 U141 100 (45.4)
1,3-Benzodioxole, 5-(2-propenyl)- 94-59-7 4 U203 100 (45.4)
1,3-Benzodioxole, 5-propyl- 94-58-6 4 U090 10 (4.54)
1,3-Benzodioxol-4-ol, 2,2-dimethyl- 22961826 4 U364 1000 (454)
1,3-Benzodioxol-4-ol, 2,2-dimethyl-, methyl carbamate 22781233 4 U278 100 (45.4)
Benzo[b]fluoranthene 205-99-2 2 1 (0.454)
Benzo(k)fluoranthene 207-08-9 2 5000 (2270)
7-Benzofuranol, 2,3-dihydro-2,2-dimethyl- 1563388 4 U367 10 (4.54)
7-Benzofuranol, 2,3-dihydro-2,2- dimethyl-, methylcarbamate 1563-66-2 1,4 P127 10 (4.54)
Benzoic acid 65-85-0 1 5000 (2270)
Benzoic acid, 2-hydroxy-, compd. with (3aS-cis)-1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo[2,3-b]indol-5-yl methylcarbamate ester (1:1) 57647 4 P188 100 (45.4)
Benzonitrile 100-47-0 1 5000 (2270)
Benzo[rst]pentaphene 189-55-9 4 U064 10 (4.54)
Benzo[ghi]perylene 191-24-2 2 5000 (2270)
2H-1-Benzopyran-2-one, 4-hydroxy-3-(3-oxo-1-phenylbutyl)-, & salts 81-81-2 4 P001U248 100 (45.4)
Benzo[a]pyrene 50-32-8 2,4 U022 1 (0.454)
Code of Federal Regulations 286
3,4-Benzopyrene 50-32-8 2,4 U022 1 (0.454)
ρ-Benzoquinone 106-51-4 3,4 U197 10 (4.54)
Benzotrichloride 98-07-7 3,4 U023 10 (4.54)
Benzoyl chloride 98-88-4 1 1000 (454)
Benzyl chloride 100-44-7 1,3,4 P028 100 (45.4)
Beryllium †† 7440-41-7 2,3,4 P015 10 (4.54)
BERYLLIUM AND COMPOUNDS N.A. 2,3 **
Beryllium chloride 7787-47-5 1 1 (0.454)
Beryllium compounds N.A. 2,3 **
Beryllium fluoride 7787-49-7 1 1 (0.454)
Beryllium nitrate 13597-99-47787-55-5 1 1 (0.454)
Beryllium powder †† 7440-41-7 2,3,4 P015 10 (4.54)
alpha-BHC 319-84-6 2 10 (4.54)
beta-BHC 319-85-7 2 1 (0.454)
delta-BHC 319-86-8 2 1 (0.454)
gamma-BHC 58-89-9 1,2,3,4 U129 1 (0.454)
2,2′-Bioxirane 1464-53-5 4 U085 10 (4.54)
Biphenyl 92-52-4 3 100 (45.4)
[1,1′-Biphenyl]-4,4′-diamine 92-87-5 2,3,4 U021 1 (0.454)
[1,1′-Biphenyl]-4,4′-diamine,3,3′-dichloro- 91-94-1 2,3,4 U073 1 (0.454)
[1,1′-Biphen