Final regulations

Table 1. Federal Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
Chemical Name
Threshold
quantity (lbs)
for listing
Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro [oxybis[metane]]]-, T-4- Bromine yes Chlorine dioxide [Chlorine oxide (ClO2)] Chloromethyl ether [Methane, oxybis[chloro-]] Chloromethyl methyl ether [Methane, chloromethoxy-] Dimethyldichlorosilane [Silane, dichlorodimethyl-] 1,1-Dimethylhydrazine [Hydrazine,1,1-dimethyl-] Epichlorohydrin [Oxirane, (chloromethyl)-] Hydrogen chloride (anhydrous) [Hydrochloric acid] Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-] Isobutyronitrile [Propanenitrile, 2-methyl-] Isopropyl chloroformate [Carbonochloridic acid, 1- Methacrylonitrile [2-Propenenitrile, 2-methyl-] Table 1. Federal Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
(Continued)
Chemical Name
Threshold
quantity (lbs)
for listing
Methyl chloroformate [Carbonochloridic acid, methylester] Methyl isocyanate [Methane, isocyanato-] Methyl thiocyanate [Thiocyanic acid, methyl ester] Methyltrichlorosilane [Silane, trichloromethyl-] Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with Perchloromethylmercaptan [Methanesulfenyl chloride, Phosphorus oxychloride [Phosphoryl chloride] Phosphorus trichloride [Phosphorous trichloride] Propyl chloroformate [Carbonochloridic acid, propylester] Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-] Tetramethyllead [Plumbane, tetramethyl-] Tetranitromethane [Methane, tetranitro-] Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-] Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1- Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2- Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] 1 Trimethylchlorosilane [Silane, chlorotrimethyl-] Vinyl acetate monomer [Acetic acid ethenyl ester] The exemption in Section 2770.2(b)(1)(B) regarding portions of a process where this regulated substance is handled at partial pressures below 10 mm Hg does not apply to this substance.
Note - Basis for Listing:
a
On EHS list, vapor pressure 10 mmHg or greater. Toxicity of hydrogen chloride, potential to release hydrogen chloride, and history of accidents. Toxicity of sulfur trioxide and sulfuric acid, potential to release sulfur trioxide, and history of accidents. This column identifies substances which may appear on Table 3. Table 3 may not have concentration limitations. Table 2. Federal Regulated Flammable Substances List 1 and Threshold Quantities
for Accidental Release Prevention
Chemical Name
CAS Numbers
Threshold
quantity (lbs)
for listing
Bromotrifluorethylene [Ethene, bromotrifluoro-] Carbon oxysulfide [Carbon oxide sulfide (COS)] 2-Chloropropylene [1-Propene, 2-chloro-] 1-Chloropropylene [1-Propene, 1-chloro-] 2,2-Dimethylpropane [Propane, 2,2-dimethyl-] Ethyl nitrite [Nitrous acid, ethyl ester] Methyl formate [Formic acid, methyl ester] Table 2. Federal Regulated Flammable Substances List 1 and Threshold Quantities
for Accidental Release Prevention
(Continued)
Chemical Name
CAS Numbers
Threshold
quantity (lbs)
for listing
Tetrafluoroethylene [Ethene, tetrafluoro-] Tetramethylsilane [Silane, tetramethyl-] Trifluorochloroethylene [Ethene, chlorotrifluoro-] Trimethylamine [Methanamine, N,N-dimethyl-] Vinylidene chloride [Ethene, 1,1-dichloro-] Vinylidene fluoride [Ethene, 1,1-difluoro-] 1 A flammable substance when used as a fuel or held for sale as a fuel at a retail facility is excluded from all provisions of this Table 3. State Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
Chemical Name
CAS Number
Threshold
Quantity (lbs)
Benzimidazole, 4,5-Dichloro-2-(Trifluoromethyl)- no Bicyclo[2.2.1] Heptane-2-Carbonitrile, 5-Chloro- 6-((((Methylamino) Carbonyl)Oxy)Imino)-, (1s-(1-alpha, 2-beta, 4-alpha, 5-alpha, 6E))-. Boron Trifluoride Compound w/ Methyl Ether (1:1) Table 3. State Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
(Continued)
Chemical Name
CAS Number
Threshold
Quantity (lbs)
Carbamic Acid, Methyl-,o-(((2,4-Dimethyl-1, 3-Dithiolan-2-yl)Methylene) Cobalt, ((2,2'-(1,2-Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato))(2-)-N,N',O,O')-. Table 3. State Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
(Continued)
Chemical Name
CAS Number
Threshold
Quantity (lbs)
Table 3. State Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
(Continued)
Chemical Name
CAS Number
Threshold
Quantity (lbs)
Isocyanic Acid, 3,4-Dichlorophenyl Ester Manganese, Tricarbonyl Methylcyclopentadienyl Table 3. State Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
(Continued)
Chemical Name
CAS Number
Threshold
Quantity (lbs)
Phenol, 2,2'-Thiobis(4-Chloro-6-Methyl)- Phenol, 3-(1-Methylethyl)-, Methylcarbamate Phosphonothioic Acid, Methyl-, S-(2-(Bis(1-Methylethyl)Amino)Ethyl) O- Table 3. State Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
(Continued)
Chemical Name
CAS Number
Threshold
Quantity (lbs)
Table 3. State Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
(Continued)
Chemical Name
CAS Number
Threshold
Quantity (lbs)
Zinc, Dichloro(4,4-Dimethyl-5((((Methylamino) Carbonyl)Oxy)Imino) This column identifies substances which may appear on Table 1. Table 1 may have concentration limitations. Substances that failed the evaluation pursuant to Section 25532(g)(2) of the HSC but remain listed pursuant to potential health impacts. The exemption in Section 2770.2(b)(1)(B) regarding portions of a process where these regulated substances are handled at partial pressures below 10 mm Hg does not apply to these substances. These extremely hazardous substances are solids. The lesser quantity listed applies only if in powdered form and with a particle size of less than 100 microns; or if handled in solution or in molten form; or the substance has an NFPA rating for reactivity of 2, 3, or 4. Otherwise, a 10,000 pound threshold applies. The exemption in Section 2770.2(b)(1)(B) regarding portions of a process where these regulated substances are handled at partial pressures below 10 mm Hg does not apply to these substances. Table 3. State Regulated Substances List and Threshold Quantities
for Accidental Release Prevention
(Continued)
These extremely hazardous substances are reactive solids. The exemption in Section 2770.2(b)(1)(B) regarding portions of a process where these regulated substances are handled at partial pressures below 10 mm Hg does not apply to these substances. Appropriate synonyms or mixtures of extremely hazardous substances with the same CAS number are also regulated, e.g., formalin. The listing of ammonia includes anhydrous and aqueous forms of ammonia pursuant to Section 25532(g)(2). Hydroquinone is exempt in crystalline form. Sulfuric acid fails the evaluation pursuant to Section 25532(g)(2) of the HSC but remains listed as a Regulated Substance only under the following conditions: If concentrated with greater than 100 pounds of sulfur trioxide or the acid meets the definition of oleum. (The Table 3 threshold for sulfur trioxide is 100 pounds.) (The Table 1 threshold for oleum is 10,000 pounds.) If in a container with flammable hydrocarbons (flash point < 730 F). The exemption in Section 2770.2(b)(1)(B) regarding portions of a process where these regulated substances are handled at partial pressures below 10 mm Hg does not apply to these substances.

Source: http://www.emd.saccounty.net/Documents/Info/EC/CalArp/CalARP_ListofRegulatedSubstancesTables1-3.pdf