Nevada Administrative Code
Chapter 459 - Hazardous Materials
REGULATION OF HIGHLY HAZARDOUS SUBSTANCES AND EXPLOSIVES
Table of Substances
Section 459.9533 - Tabulated values for threshold quantity, two release quantity and toxic endpoints; classification of substance as explosive

Universal Citation: NV Admin Code 459.9533

Current through September 16, 2024

1. The following table sets forth the list of highly hazardous substances and the parameters associated with carrying out C.A.P.P.:

Chemical Name Alternate Chemical Name Mixture Description CAS Number Threshold Quantity (lbs) Two Release Quantity (lbs) Two Release Source note 1 Tox (T) or Flam (F) Toxic Endpoint (mg/L)
Acetaldehyde Ethanal 75-07-0 2,500 1,000 1 F
Acetylene Ethyne 74-86-2 10,000 1,000 3 F
Acrolein 2-Propenol 107-02-8 150 1 1 & 2 T 0.0011
Acrylonitrile 2-Propenenitrile 107-13-1 20,000 100 1 & 2 T 0.076
Acrylyl chloride 2-Propenoyl chloride 814-68-6 250 100 2 T 0.00090
Alkylaluminums 5,000 50* 3
Allyl alcohol 2-Propen-1-ol 107-18-6 15,000 100 1 & 2 T 0.036
Allyl chloride 3-chloropropene 107-05-1 1,000 100 3 T 0.1252
Allylamine 2-Propen-1-amine 107-11-9 1,000 500 2 T 0.0032
Ammonia Anhydrous Ammonia Anhydrous 7664-41-7 5,000 100 1 & 2 T 0.14
Ammonia Ammonia solution Ammonium hydroxide 20 wt% to 44 wt% 7664-41-7 20,000 note 2 1,000 1 T 0.14
Ammonia Ammonia solution Ammonium hydroxide concentration greater than 44% ammonia by weight 7664-41-7 10,000 note 2 1,000 1 T 0.14
Ammonium perchlorate 7790-98-9 7,500 75* 3
Ammonium permanganate 7787-36-2 7,500 75* 3
Arsenous trichloride 7784-34-1 15,000 1 1 & 2 T 0.010
Arsine Arsenic Hydride 7784-42-1 100 10 3 T 0.0019
bis(Chloromethyl) Ether Chloromethyl Ether 542-88-1 100 10 1 & 2 T 0.00025
Boron trichloride 10294-34-5 2,500 100 3 T 0.010
Boron trifluoride 7637-07-2 250 25 3 T 0.028
Boron trifluoride w/Methyl Ether 1:1 ratio 353-42-4 15,000 1,000 2 T 0.023
Bromine 7726-95-6 1,500 500 2 T 0.0065
Bromine chloride 13863-41-7 1,500 10 3 T 0.00472
Bromine pentafluoride 7789-30-2 2,500 100 3 T 0.00715
Bromine trifluoride 7787-71-5 15,000 1000 3 T 0.0025
Bromotrifluor-ethylene 598-73-2 10,000 1,000 3 F
1,3-Butadiene 106-99-0 10,000 10 1 F
Butane 106-97-8 10,000 1,000 3 F
1-Butene 106-98-9 10,000 1,000 3 F
2-Butene 107-01-7 10,000 1,000 3 F
Butene 25167-67-3 10,000 1,000 3 F
2-Butene-cis 590-18-1 10,000 1,000 3 F
2-Butene-trans 624-64-6 10,000 1,000 3 F
Butyl hydroperoxide (Tertiary) 75-91-2 5,000 50* 3
Butyl perbenzoate (Tertiary) 614-45-9 7,500 75* 3
Carbon disulfide 75-15-0 20,000 100 1 & 2 T 0.16
Carbon oxysulfide Carbon Oxide Sulfide 463-58-1 10,000 100 1 F
Carbonyl fluoride 353-50-4 2,500 10 3 T 0.00972
Cellulose nitrate concentration greater than 12.6 % nitrogen 9004-70-0 2,500 25* 3
Chlorine 7782-50-5 1,500 10 1 & 2 T 0.0087
Chlorine dioxide 10049-04-4 1,000 100 3 T 0.0028
Chlorine monoxide 7791-21-1 10,000 1,000 3 F
Chlorine pentafluoride 13637-63-3 1,000 10 3 T 0.003
Chlorine trifluoride 7790-91-2 1,000 100 3 T 0.0038
Chlorodiethyl-aluminum Diethyl-aluminum Chloride 96-10-6 5,000 50* 3
1-Chloro-2,4-Dinitrobenzene 97-00-7 5,000 50* 3
Chloroform 67-66-3 20,000 10 1 & 2 T 0.49
Chloromethyl methyl ether 107-30-2 500 10 1 & 2 T 0.0018
Chloropicrin 76-06-2 500 50 3 T 0.00134
Chloropicrin/Methylbromide mix 1,500 500 3 T 0.00078
Chloropicrin/Methylchloride mix 1,500 500 3 T
1-Chloropropylene 590-21-6 10,000 1,000 3 F
2-Chloropropylene 557-98-2 10,000 1,000 3 F
Crotonaldehyde 2-Butenal 4170-30-3 20,000 100 1 & 2 T 0.029
Crotonaldehyde, (E)- 2-Butenal, (E)- 123-73-9 20,000 100 1 & 2 T 0.029
Cumene Hydroperoxide 80-15-9 5,000 10 1
Cyanogen Ethanedinitrile 460-19-5 2,500 100 1 F
Cyanogen chloride 506-77-4 500 10 1 T 0.030
Cyanuric fluoride 675-14-9 100 10 3 T 0.00017
Cyclohexylamine Cyclohex-animine 108-91-8 15,000 1,000 2 T 0.16
Cyclopropane 75-19-4 10,000 1,000 3 F
Diacetyl peroxide concentration greater than 70% 110-22-5 5,000 note 2 50* 3
Diazomethane 334-88-3 500 10 3
Dibenzoyl peroxide 94-36-0 7,500 75* 3
Diborane 19287-45-7 100 10 3 T 0.0011
Dibutyl peroxide (tertiary) 110-05-4 5,000 50* 3
Dichloro acetylene 7572-29-4 250 10 3
Dichlorosilane 4109-96-0 2,500 100 3 F
Diethylzinc 557-20-0 10,000 100* 3
Difluoroethane 75-37-6 10,000 1,000 3 F
Diisopropyl peroxydicarbonate 105-64-6 7,500 75* 3
Dilauroyl peroxide 105-74-8 7,500 75* 3
Dimethyl sulfide 75-18-3 100 10 3 T 1.27
Dimethylamine anhydrous 124-40-3 2,500 1,000 1 F
Dimethyl-dichlorosilane 75-78-5 1,000 500 2 T 0.026
1,1-Dimethylhydrazine 57-14-7 1,000 10 1 & 2 T 0.012
2,2-Dimethylpropane 463-82-1 10,000 1,000 3 F
2,4-Dinitroanaline 97-02-9 5,000 50* 3
Epichlorohydrin 106-89-8 20,000 100 1 & 2 T 0.076
Ethane 74-84-0 10,000 1,000 3 F
Ethyl acetylene 1-Butyne 107-00-6 10,000 1,000 3 F
Ethyl chloride 75-00-3 10,000 100 1 F
Ethyl ether 60-29-7 10,000 100 1 F
Ethyl mercaptan Ethanethiol 75-08-1 10,000 1,000 3 F
Ethyl nitrite 109-95-5 5,000 50* 3 F
Ethylamine Ethanamine 75-04-7 7,500 100 1 F
Ethylene Ethene 74-85-1 10,000 1,000 3 F
Ethylene fluorohydrin 371-62-0 100 10 2 T 0.0008
Ethylene oxide Oxirane 75-21-8 5,000 10 1 & 2 T 0.090
Ethylenediamine 107-15-3 20,000 5,000 1 & 2 T 0.49
Ethyleneimine Aziridine 151-56-4 1,000 1 1 & 2 T 0.018
Fluorine 7782-41-4 100 10 1 & 2 T 0.0039
Formaldehyde concentration of 37% or greater by weight 50-00-0 1,000 note 2 100 1 & 2 T 0.012
Furan 110-00-9 500 100 1 & 2 T 0.0012
Hexafluoroacetone 684-16-2 5,000 10 3 T 0.0068
Hydrazine 302-01-2 15,000 1 1 & 2 T 0.011
Hydrochloric acid 37% or greater 7647-01-0 15,000 note 2 1,000 3 T 0.030
Hydrofluoric acid 50% or greater 7664-39-3 1,000 note 2 100 1 T 0.016
Hydrogen 1333-74-0 10,000 1,000 3 F
Hydrogen bromide 10035-10-6 5,000 10 3 T 0.01
Hydrogen chloride Anhydrous 7647-01-0 5,000 100 3 T 0.030
Hydrogen cyanide Hydrocyanic acid Anhydrous 74-90-8 1,000 10 1 & 2 T 0.011
Hydrogen fluoride Anhydrous 7664-39-3 1,000 100 1 & 2 T 0.016
Hydrogen peroxide concentration of 52% or greater by weight 7722-84-1 7,500 note 2 1,000 2
Hydrogen selenide 7783-07-5 150 10 2 T 0.00066
Hydrogen sulfide 7783-06-4 1,500 100 1 & 2 T 0.042
Hydroxylamine 7803-49-8 2,500 25* 3
Iron, pentacarbonyl 13463-40-6 250 100 2 T 0.00044
Isobutane 1,1-dimethyl ethane 75-28-5 10,000 1,000 3 F
Isobutyronitrile 78-82-0 20,000 1,000 2 T 0.14
Isopentane 78-78-4 10,000 1,000 3 F
Isoprene 78-79-5 10,000 100 1 F
Isopropyl chloride 2 - chloropropane 75-29-6 10,000 1,000 3 F
Isopropyl chloroformate 108-23-6 15,000 1,000 2 T 0.10
Isopropyl formate 625-55-8 500 100 3 T 0.0014
Isopropylamine 75-31-0 5,000 1,000 3 F
Ketene 463-51-4 100 10 3 T 0.18
Mercury 7439-97-6 200,000 5,000 3 T 0.0021
Methacrylaldehyde 78-85-3 1,000 500 3 T 0.007
Methacryloyl chloride 920-46-7 150 100 2 T 0.0006
Methacryloyloxyethyl isocyanate 30674-80-7 100 10 3 T 0.00063
Methane 74-82-8 10,000 1,000 3 F
Methyl acrylonitrile Meth-acrylonitrile 126-98-7 250 25 3 T 0.0027
Methyl bromide 74-83-9 2,500 500 3 T 0.194
3-Methyl-1-butene Isopentene 563-45-1 10,000 1,000 3 F
2-Methyl-1-butene 563-46-2 10,000 1,000 3 F
Methyl chloride 74-87-3 15,000 100 1 T 0.82
Methyl chloroformate 79-22-1 500 100 3 T 0.0019
Methyl disulfide 624-92-0 100 10 3 T 0.19
Methyl ether 115-10-6 10,000 1,000 3 F
Methyl ethyl ketone peroxide Ethyl methyl ketone peroxide concentration greater than 60% 1338-23-4 5,000 note 2 10 1
Methyl fluoroacetate 453-18-9 100 10 3 T 0.00025
Methyl fluorosulfate 421-20-5 100 10 3 T 0.00023
Methyl formate 107-31-3 10,000 1,000 3 F
Methyl hydrazine 60-34-4 100 10 1 & 2 T 0.0094
Methyl iodide 74-88-4 7,500 100 1 T 0.29
Methyl isocyanate 624-83-9 250 10 1 & 2 T 0.0012
Methyl mercaptan 74-93-1 5,000 100 1 & 2 T 0.049
Methyl thiocyanate 556-64-9 20,000 10,000 2 T 0.085
Methyl vinyl ketone 78-94-4 100 10 2 T 0.00007
Methylamine Methanamine Anhydrous 74-89-5 1,000 100 1 F
2-Methylpropene 115-11-7 10,000 1,000 3 F
Methyltrichlorosilane 75-79-6 500 50 3 T 0.018
Nickel carbonyl 13463-39-3 150 10 1 & 2 T 0.00067
Nitric acid 80% or greater 7697-37-2 15,000 note 2 1,000 1 & 2 T 0.026
Nitric acid concentration of 94.5 % or greater by weight 7697-37-2 500 note 2 50 3 T 0.026
Nitric oxide Nitrogen oxide 10102-43-9 250 10 1 & 2 T 0.031
Nitroaniline para Nitroaniline 100-01-6 5,000 50* 3
Nitrogen dioxide 10102-44-0 250 10 1 & 2 T 0.0282
Nitrogen oxides NO; NO2; N2O4; N2O3 10102-44-0 250 10 3 T 0.0282
Nitrogen tetroxide 10544-72-6 250 10 1 T 0.0564
Nitrogen trifluoride 7783-54-2 5,000 1,000 3 T 0.29
Nitrogen trioxide 10544-73-7 250 10 3 T 0.016
Nitromethane 75-52-5 2,500 25* 3
Oleum Fuming sulfuric acid 65 wt% or greater of SO3 8014-95-7 1,000 500 3 T 0.010
Osmium tetroxide 20816-12-0 100 10 3 T 0.001
Oxygen difluoride Fluorine monoxide 7783-41-7 100 10 3
Ozone 10028-15-6 100 10 3
Pentaborane 19624-22-7 100 10 3 T 0.00026
1,3-Pentadinene 504-60-9 10,000 100 1 F
Pentane 109-66-0 10,000 1,000 3 F
1-Pentene 109-67-1 10,000 1,000 3 F
2-Pentene, (E)- 646-04-8 10,000 1,000 3 F
2-Pentene, (Z)- 627-20-3 10,000 1,000 3 F
Peracetic acid Peroxyacetic acid concentration greater than 60% acetic acid 79-21-0 1,000 note 2 500 2 T 0.0045
Perchloric acid concentration greater than 60% by weight 7601-90-3 5,000 note 2 50* 3
Perchloromethyl mercaptan 594-42-3 150 100 1 & 2 T 0.0076
Perchloryl fluoride 7616-94-6 5,000 100 3 T 0.042
Phosgene Carbonyl chloride 75-44-5 100 10 1 & 2 T 0.00081
Phosphine Hydrogen phosphide 7803-51-2 100 10 3 T 0.0035
Phosphorus oxychloride Phosphoryl chloride 10025-87-3 1,000 500 3 T 0.0030
Phosphorus trichloride 7719-12-2 1,000 500 3 T 0.028
Piperidine 110-89-4 15,000 1,000 2 T 0.022
Propadiene 1,2 Propadiene 463-49-0 10,000 1,000 3 F
Propane 74-98-6 10,000 1,000 3 F
Propargyl bromide 3-Bromopropyne 106-96-7 100 10 2 T 0.00003
Propionitrile 107-12-0 10,000 10 1 & 2 T 0.0037
Propyl chloroformate 109-61-5 15,000 500 2 T 0.010
Propyl nitrate 627-13-4 100 25* 3
Propylene 1 Propene 115-07-1 10,000 1,000 3 F
Propylene oxide 75-56-9 10,000 100 1 & 2 T 0.59
Propyleneimine 75-55-8 10,000 1 1 & 2 T 0.12
Propyne 1-Propyne 74-99-7 10,000 1,000 3 F
Sarin 107-44-8 100 10 2 T 0.00006
Selenium hexafluoride 7783-79-1 1,000 1 1 T 0.0016
Silane 7803-62-5 10,000 1,000 3 F
Stibine Antimony hydride 7803-52-3 500 10 3 T 0.0026
Sulfur dioxide Anhydrous 7446-09-5 1,000 100 3 T 0.0078
Sulfur pentafluoride 5714-22-7 250 10 3 T 0.001
Sulfur tetrafluoride 7783-60-0 250 10 3 T 0.0092
Sulfur trioxide Sulfuric Anhydride 7446-11-9 1,000 100 2 T 0.010
Tellurium hexafluoride 7783-80-4 250 10 3 T 0.0009
Tetrafluoroethylene 116-14-3 5,000 1,000 3 F
Tetrafluorohydrazine 10036-47-2 5,000 500 3 T 0.0213
Tetramethyl Lead 75-74-1 1,000 100 2 T 0.0040
Tetramethylsilane 75-76-3 10,000 1,000 3 F
Tetranitromethane 509-14-8 10,000 10 2 T 0.0040
Thionyl chloride 7719-09-7 250 100 3 T 0.0097
Titanium tetrachloride 7550-45-0 2,500 1,000 1 & 2 T 0.020
Toluene 2,4-diisocyanate 584-84-9 10,000 100 1 & 2 T 0.0070
Toluene 2,6-diisocyanate 91-08-7 10,000 100 1 & 2 T 0.0070
Toluene diisocyanate 26471-62-5 10,000 100 1 & 2 T 0.0070
Trichloro (chloromethyl) silane 1558-25-4 100 10 3 T 0.0003
Trichloro (dichlorophenyl) silane 27137-85-5 2,500 500 2 T 0.008
Trichlorosilane 10025-78-2 5,000 500 3 F
Trifluoro-chloroethylene 79-38-9 10,000 500 3 F
Trimethoxysilane 2487-90-3 1,500 500 3 T 0.01
Trimethylamine 75-50-3 10,000 100 1 F
Trimethylchlorosilane 75-77-4 10,000 500 2 T 0.050
Vinyl acetate monomer 108-05-4 15,000 1,500 3 T 0.26
Vinyl acetylene 689-97-4 10,000 1,000 3 F
Vinyl chloride 75-01-4 10,000 1 1 F
Vinyl ethyl ether 109-92-2 10,000 1,000 3 F
Vinyl fluoride 75-02-5 10,000 1,000 3 F
Vinyl methyl ether 107-25-5 10,000 1,000 3 F
Vinylidene chloride 75-35-4 10,000 100 1 F
Vinylidene fluoride 75-38-7 10,000 1,000 3 F

Table Notes:

Note 1: For Two Release Source Column: 1=RQ as listed in 40 C.F.R. Part 302; 2=RQ as listed in 40 C.F.R. Part 355; 3=Two Release Quantity as determined in "Technical Basis Document for C.A.P.P. Two Release Quantities and Toxic Endpoints."

Note 2: The threshold quantity must be applied to the fraction of the chemical in the actual mixture.

* These substances must be involved in a fire or explosion to qualify as a release pursuant to subparagraph (2) of paragraph (a) of subsection 1 of NAC 459.95323.

2. Except as otherwise provided in subsection 3, a substance must be classified as an explosive if the substance is classified as division 1.1, 1.2, 1.3, 1.4 or 1.5 in column 3 of the Table of Hazardous Materials in 49 C.F.R. § 172.101, which is adopted by reference pursuant to NAC 459.95528.

3. The list of explosives as classified pursuant to subsection 2 excludes those substances described in 18 U.S.C. § 845(a).

4. If a substance:

(a) Is listed as a highly hazardous substance pursuant to subsection 1; and

(b) Is also classified as an explosive pursuant to subsection 2 which is not excluded pursuant to subsection 3, the substance must be treated as a highly hazardous substance for the purposes of NAC 459.952 to 459.95528, inclusive, if the substance is present in the process in excess of the threshold quantity set forth for the substance pursuant to subsection 1.

Added to NAC by Environmental Comm'n by R121-98, eff. 5-27-99; A by R041-01, 10-25-2001; R137-04, 2-15-2005; R019-07, 10-31-2007

NRS 459.3816, 459.3818, 459.3833

Disclaimer: These regulations may not be the most recent version. Nevada 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.
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