The following definitions are applicable to this chapter:

1. (1) “Major Source” means any stationary source or group of stationary sources located within a contiguous area and under common control that emits or has the potential to emit considering controls, in the aggregate, 10 tons per year or more of any hazardous air pollutant or 25 tons per year of any combination of hazardous air pollutants. In addition, the provisions of subpart (11)(b)14.(i) of Rule 1200-03-09-.02 are recognized as to the grouping or aggregation of emissions for the purpose of calculating emission potential as it relates to the applicability thresholds of this definition. Additionally, electric utility steam generating units will not be regulated as major sources until the United States Environmental Protection Agency decides that they should be so regulated pursuant to Section 112(n) of the Federal Clean Air Act.
2. (2) “Area Source” means any stationary source of hazardous air pollutants that is not a major source. Mobile sources such as vehicles, trains, planes, ships, et cetera are not area sources.
3. (3) “New Source” means a stationary source that emits hazardous air pollutants as they are defined in this paragraph and is constructed or reconstructed on or after the date that the United States Environmental Protection Agency approves the major source operating permit program submitted by the State of Tennessee in accordance with Section 502(d) of the Federal Clean Air Act.
4. (4) “Stationary Source” shall have the meaning given to it in subparagraph (1)(ddd) of Rule 1200- 03-02-.01.
5. (5) “Existing Source” is any stationary source that emits hazardous air pollutants as they are defined in paragraph (6) of this rule and is not a new source.
6. (6) “Hazardous Air Pollutant” - means any of the following air contaminants: AIR POLLUTANT CONTROL REQUIREMENTS CAS No. 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 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-Dichlorobenzene(p) 91941 3,3-Dichloro benzidene AIR POLLUTANT CONTROL REQUIREMENTS 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 (1-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-Dichlorethane) 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) AIR POLLUTANT CONTROL REQUIREMENTS 108101 Methyl isobutyl ketone (Hexone) 624839 Methyl isocyanate 80626 Methyl methacrylate 1634044 Methyl tert butyl ether 101144 4,4-Methylene bis(2-chloronaniline) 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 (Arochlors) 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 Tetrachoroethylene (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 AIR POLLUTANT CONTROL REQUIREMENTS 593602 Vinyl bromide 75014 Vinyl chloride 75354 Vinylidene chloride (1,1-Dichloroethylene) 1330207 Xylenes (isomers and mixture) 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, 6 0 Lead Compounds 0 Manganese Compounds 0 Mercury Compounds 0 Fine mineral fibers3 0 Nickel Compounds 0 Polycyclic Organic Matter4 0 Radionuclides (including radon)5 0 Selenium Compounds
7. (7) “Federal Clean Air Act” means the federal statutes found at 42 U.S.C. 7401 et seq. as amended by Public Law No. 101-549 (November 15, 1990).
8. (8) “MACT” means maximum achievable control technology. It is a case-by-case determination of what constitutes a maximum achievable reduction of hazardous air pollutants considering the costs of achieving the emission reduction and any non-air quality health and environmental impacts and energy requirements. MACT may include but is not limited to: control equipment, work practice standards, emission standards, process modifications, or raw materials substitution and/or reformulation. 1 X'CN where X = H' or any other group where a formal dissociation may occur. For example KCN or Ca(CN)2 2 Include 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. This action deletes each individual compound in a group called the surfactant alcohol ethoxylates and their derivatives (SAED) from the glycol ethers category in the list of hazardous air pollutants (HAP) established by section 112(b)(1) of the Clean Air Act (CAA). 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 than one benzene ring, and which have a boiling point greater than or equal to 1000 C. 5 a type of atom which spontaneously undergoes radioactive decay. 6 The substance ethylene glycol monobutyl ether (EGBE, 2-Butoxyethanol) (Chemical Abstract Service (CAS) Number 111-76-2) is deleted from the list of hazardous air pollutants established by 42 U.S.C. 7412(b)(1). AIR POLLUTANT CONTROL REQUIREMENTS
9. (9) “GACT” means generally available control technology. It is a case-by-case determination of what constitutes reasonable and proper control for hazardous air pollutants from area sources. GACT may include, but is not limited to: control equipment, work practice standards, emission standards, process modification, or raw materials substitution and/or reformulation.
10. (10) Reserved.

Authority: T.C.A. §§ 4-5-201, et seq.; 68-201-101, et seq.; and 68-201-105. Administrative History: Original rule filed July 5, 1994; effective September 18, 1994. Amendment filed November 12, 1998; effective January 26, 1999. Amendment filed June 30, 2006; effective October 27, 2006. Amendment filed October 17, 2006; effective December 31, 2006. Amendments filed September 29, 2022; effective December 28, 2022.