25 Pa. Code § 129.71a – Control of VOC emissions from the synthetic organic chemical manufacturing industry—air oxidation, distillation and reactor processes.

(a) Applicability.
1. (1) Except as specified in paragraph (3), this section applies to the owner and operator of a synthetic organic chemical manufacturing facility that has a vent stream originating from a process unit in which an air oxidation unit process, distillation operation or reactor process produces one or more of the chemicals listed in Table 1 as a product, coproduct, byproduct or intermediate.
2. (2) For purposes of this section, reference to total organic compounds or TOC in 40 CFR Part 60, Subpart III (relating to standards of performance for volatile organic compound (VOC) emissions from the Synthetic Organic Chemical Manufacturing Industry (SOCMI) air oxidation unit processes), 40 CFR Part 60, Subpart NNN (relating to standards of performance for volatile organic compound (VOC) emissions from Synthetic Organic Chemical Manufacturing Industry (SOCMI) distillation operations) or 40 CFR Part 60, Subpart RRR (relating to standards of performance for volatile organic compound (VOC) emissions from Synthetic Organic Chemical Manufacturing Industry (SOCMI) reactor processes) shall be considered equivalent to VOC as defined in § 121.1 (relating to definitions).
3. (3) The owner and operator of a synthetic organic chemical manufacturing facility located in this Commonwealth that has a vent stream originating from a process unit in which an air oxidation unit process, distillation operation or reactor process produces one or more of the chemicals listed in Table 1 as a product, coproduct, byproduct or intermediate shall meet the requirements of this section unless more stringent requirements in an applicable permit or plan approval issued by the Department apply.

(b) Standards.

(1) Process vents. For a process vent that is subject to equivalent VOC control provisions under an existing 40 CFR Part 60 (relating to standards of performance for new stationary sources) or 40 CFR Part 63 (relating to National emission standards for hazardous air pollutants for source categories) standard, compliance with the requirements of the existing 40 CFR Part 60 or 63 standard shall constitute compliance with the provisions of this section.
(2) Air oxidation unit processes.
1. (i) The owner or operator of a source with an air oxidation unit process meeting the applicability criteria in subsection (a) shall comply with the requirements of 40 CFR Part 60, Subpart III unless the source has RACT control measures approved in a permit as part of the Commonwealth’s Federally approved SIP prior to January 21, 2023.
2. (ii) The exemption listed in 40 CFR 60.610(c) (relating to applicability and designation of affected facility) applies to an owner or operator subject to this section.
3. (iii) Notwithstanding 40 CFR 60.610, for purposes of this section:
  1. (A) An affected source is one that meets the criteria in 40 CFR 60.610(a) regardless of the specific date of construction, modification or reconstruction of the source for a regulated chemical described in subsection (a)(1) and Table 1.
  2. (B) The owner or operator of an affected source shall comply with this section no later than January 21, 2025.
4. (iv) Notwithstanding 40 CFR 60.615(a) (relating to reporting and recordkeeping requirements), each owner or operator subject to this section shall notify the Department no later than April 21, 2023, of the method by which the owner or operator of the affected source will comply with the applicable provisions of 40 CFR 60.612 (relating to standards).
5. (v) For purposes of this section, 40 CFR 60.616 and 40 CFR 60.618 (relating to reconstruction; and delegation of authority) are not applicable.
6. (vi) Notwithstanding 40 CFR 60.610(d)(4), 60.614(g) (relating to test methods and procedures), 60.615(c), 60.615(g) (but not 60.615(g)(1) or 60.615(g)(4)), and 60.615(j), a reference to the Administrator shall mean the Department.
7. (vii) Notwithstanding 40 CFR 60.614(c), the Department reserves the option to require testing at other times as may be required.
(3) Distillation operations.
1. (i) The owner or operator of a source with a distillation operation subject to subsection (a) shall comply with the requirements of 40 CFR Part 60, Subpart NNN.
2. (ii) The following exemptions apply:
  1. (A) The exemptions listed in 40 CFR 60.660(c) (relating to applicability and designation of affected facility).
  2. (B) The owner or operator of a distillation operation with a vent stream that has a total VOC concentration of less than 500 ppmv is subject only to the test method and procedure and the recordkeeping and reporting requirements specified in 40 CFR 60.660(c)(6) and not to the test method and procedure and the recordkeeping and reporting requirements of this section.
3. (iii) Notwithstanding 40 CFR 60.660, for purposes of this section:
  1. (A) An affected source is one that meets the criteria in 40 CFR 60.660(a), regardless of the specific date of construction, modification or reconstruction of the source.
  2. (B) A regulated chemical is one described in subsection (a)(1) and Table 1, rather than in 40 CFR 60.667 (relating to chemicals affected by subpart NNN).
  3. (C) The owner or operator of an affected source shall comply with this section no later than January 21, 2025.
4. (iv) Notwithstanding 40 CFR 60.665(a) (relating to reporting and recordkeeping requirements), each owner or operator subject to this section shall notify the Department no later than April 23, 2023, of the method by which the owner or operator of the affected source will comply with the applicable provisions of 40 CFR 60.662 (relating to standards).
5. (v) For purposes of this section, 40 CFR 60.666 and 40 CFR 60.668 (relating to reconstruction; and delegation of authority) are not applicable.
6. (vi) Notwithstanding 40 CFR 60.660(d)(4), 60.664(g)(1) (relating to test methods and procedures), 60.665(c), 60.665(g) (but not 60.665(g)(1)(ii)), 60.665(l), 60.665(n) and 60.665(o), a reference to the Administrator shall mean the Department.
7. (vii) Notwithstanding 40 CFR 60.664(c), the Department reserves the option to require testing at other times as may be required.

(4) Reactor processes.

(i) The owner or operator of a source with a reactor process subject to subsection (a) shall comply with the requirements of 40 CFR Part 60, Subpart RRR.
(ii) The following exemptions apply:
1. (A) Exemptions listed in 40 CFR 60.700(c) (relating to applicability and designation of affected facility), except that the cutoff for the vent stream flow rate shall be 0.0085 scm/min, not 0.011 scm/min as specified in 40 CFR 60.700(c)(4).
2. (B) The owner or operator of a reactor operation with a vent stream that has a total VOC concentration of less than 500 ppmv is subject only to the test method and procedure and the recordkeeping and reporting requirements specified in 40 CFR 60.700(c)(8), and not to the test method and procedure and recordkeeping and reporting requirements of this section.
(iii) Notwithstanding 40 CFR 60.700, for purposes of this section:
1. (A) An affected source is one that meets the criteria in 40 CFR 60.700(a), regardless of the specific date of construction, modification or reconstruction of the source.
2. (B) A regulated chemical is one described in subsection (a)(1) and Table 1 rather than in 40 CFR 60.707 (relating to chemicals affected by subpart RRR).
3. (C) The owner or operator of an affected source shall comply with this section no later than January 21, 2025.
(iv) Notwithstanding 40 CFR 60.705(a) (relating to reporting and recordkeeping requirements), each owner or operator subject to this section shall notify the Department no later than April 21, 2023, of the method by which the owner or operator of the affected source will comply with the applicable provisions of 40 CFR 60.702 (relating to standards).
(v) For purposes of this section, 40 CFR 60.706 and 40 CFR 60.708 (relating to reconstruction and delegation of authority) are not applicable.
(vi) Notwithstanding 40 CFR 60.700(d)(4), 60.704(f)(1) (relating to test methods and procedures), 60.705(c), 60.705(f) (but not 60.705(f)(1)), 60.705(l), 60.705(n), 60.705(o), 60.705(p) and 60.705(r), a reference to the Administrator shall mean the Department.

(vii) Notwithstanding 40 CFR 60.704(b)(5)(iii), the Department reserves the option to require testing at other times as may be required.

CAS No.^a	Chemical name^b	Reactor and Distillation CTG Chemicals	Air Oxidation CTG Chemicals	Distillation NSPS Chemicals	Reactor Process NSPS Chemicals	Air Oxidation NSPS Chemicals
	1,1,1-Tribromo-2-methyl-2-propanol	X
584032	1,2 Butanediol	X
28553-12-0	1,2-Benzenedicarboxylic acid diisononyl ester	X
524-42-5	1,2-Naphthoquinone (particulate, vapor)		X
	1,4-Dichloride	X
109693	1-Chloro-4-nitrobenzene	X
63-25-2	1-Naphthyl-N-methylcarbamate			X
3071-32-7	1-Phenylethyl hydroperoxide	X
221-341-3	1-Phenylethyl hydroperoxide			X
107-01-7	2-Butene				X
110-65-6	2-Butyne-1,4-diol				X
26266682	2-Ethylhexanal			X
53971-27-0	2-Hydroxy-1,2,3-propanetricarboxylic acid	X
513-35-9	2-Methylbutenes, mixed	X
	3-Hydroxybutyraldehyde	X
617-94-7	a,a-Dimethyl Benzyl Alcohol (2-Phenyl-2-Propanol) (Vapor)		X
	Acrylic esters	X
67774-74-7	Alkyl benzene	X
6358-15-2	Amino-3,4,6-trichlorophenol (2-)	X
85-68-7	Butylbenzyl Phthalate				X
1111-78-0	Carbamic acid, mono ammonium salt	X
126-99-8	Chloroprene			X
61789-31-9	Coconut oil acids, sodium salt	X
75-34-3	Dichloropane (1,1-)	X
85687	Di-n-heptyl-n-nonyl undecyl phthalate			X
123-66-0	Ethyl caproate	X
61790-45-2	Fatty acids, tall oil, sodium salt	X
123013	Linear alkyl benzene	X
67774-74-7	Linear alkylbenzene			X
763-29-1	Methyl-1-pentene (2-)	X
25377837	Octene -	X
	Pentenes, mixed	X
463-49-0	Propadiene		X
108-32-7	Propyl carbonate	X
75-56-9	Propylene Oxide			X
98-51-1	p-tert-Butyltoluene	X
61790-32-7	Tallow acids, potassium salt	X
0000057-13-6	Urea ammonium nitrate	X
76131	(1,1,2-) Trichloro (1,2,2-) trifluoroethane	X		X	X
104756	(2-Ethylhexyl) amine	X		X	X
85687	1,2-Benzenedicarboxylic acid butyl, phenyl methyl ester -	X
78875	1,2-diechloropropane	X
110576	1,4-Dichlorobutene	X		X	X
106989	1-Butene	X		X	X
684255	1-Dodecene -	X
872504	1-Methyl-2-pyrrolidone	X		X	X
124118	1-Nonene	X
25167673	1-Phenyl ethyl hydroperoxide	X		X	X
3071-32-7	1-Phenylethyl hydroperoxide				X
	2,2’-Iminobisethanol - 11422	X
11466	2,2’-Oxybisethanol	X
80568	2,6,6-Trimethylbicyclo (3,1,1) hept-2-ene	X
78923	2-Butanol	X
110656	2-Butene	X		X	X
126998	2-Butyne-1,4-diol	X		X	X
78897	2-Chloro-1-propanol	X
1912249	2-Chloro-4-(ethylamino)- 6-(isopropylamino)-S-triazine	X		X
123057	2-Ethylhexanal -	X
104767	2-Ethylhexanol (2-ethyl-1-hexanol)	X		X	X
13042029	2-Hexenedinitrile	X		X
64037543	3,4-Dichloro-1-butene	X		X	X
1119853	3-Hexenedintrile	X		X
4635874	3-Pentenenitrile	X		X	X
1912249	6-Chloro-N-ethyl-N’- (1-methylethyl)- 1,3,5-triazine- 2,4-diamine -	X
15547178	6-Ethyl-1,2,3,4-tetrahydro- 9,10-antracenedione	X		X	X
26952216	6-Methyl-heptanol -	X
83329	Acenaphthene	X
105577	Acetal (1,1-diethoxy-ethane)	X
75070	Acetaldehyde -	X	X	X	X	X
107891	Acetaldol (3-hydroxy-butanal) -	X		X
60355	Acetamide	X
60355	Acetamides	X
103844	Acetanilide	X
64197	Acetic acid -	X	X	X	X	X
108247	Acetic anhydride -	X	X	X	X
102012	Acetoacetanilide	X
67641	Acetone -	X	X	X	X	X
75865	Acetone cyanohydrin -	X		X	X
75058	Acetonitrile -		X			X
98862	Acetophenone -		X			X
75365	Acetyl chloride	X
74862	Acetylene -	X		X	X
79276	Acetylene tetrabromide (1,1,2,2-tetrabromomethane)	X
107028	Acrolein -		X			X
79061	Acrylamide	X
79107	Acrylic acid -	X	X	X	X	X
107131	Acrylonitrile -	X	X	X	X	X
124049	Adipic acid -	X		X	X
111693	Adiponitrile -	X		X	X
	Alcohols, C-12 or higher, mixtures	X		X	X
	Alcohols, C-11 or lower, mixtures -	X		X	X
	Alcohols, C-12 or higher, unmixed	X		X	X
72480	Alizarin	X
84651	Alkyl anthraquinones	X
	Alkyl naphthalene sulfonates	X
91203	Alkyl naphthalenes	X
107186	Allyl alcohol	X
106956	Allyl bromide	X
107051	Allyl chloride	X		X	X
109751	Allyl cyanide	X
7360443	Aluminum acetate	X
7429905	Aluminum formates	X
1321115	Aminobenzoic acid	X
111411	Aminoethylethanolamine	X
123308	Aminophenol (p-isomer)	X
96-67-3	Aminophenol sulfonic acid	X
631618	Ammonium acetate	X
1762954	Ammonium thiocyanate	X
	Amyl acetates	X
71410	Amyl alcohol (n-) (1-pentanol)	X
75854	Amyl alcohol (tert-)	X
30899195	Amyl alcohols (mixed)	X
543599	Amyl chloride (n-)	X
	Amyl chlorides (mixed)	X
693652	Amyl ether	X
110587	Amylamines	X
513359	Amylene	X		X	X
	Amylenes, mixed	X		X	X
62533	Aniline	X		X	X
142041	Aniline hydrochloride	X
90040	Anisidine (o-)	X
100663	Anisole (methoxyl benzene)	X
120127	Anthracene	X
118923	Anthranilic acid	X
84651	Anthraquinone -	X	X			X
25376458	ar-Methylbenzenediamine	X		X	X
103333	Azobenzene	X
543806	Barium acetate	X
100527	Benzaldehyde -	X	X			X
55210	Benzamide	X
71432	Benzene -	X	X	X	X
98486	Benzenedisulfonic acid	X
98113	Benzenesulfonic acid	X		X	X
68081812	Benzenesulfonic acid C10-16-alkyl derivatives, sodium salts	X		X	X
92875	Benzidine	X
134816	Benzil	X
76937	Benzillic acid	X
91769	Benzoguanamine	X
65850	Benzoic acid -	X	X	X		X
119539	Benzoin	X
100470	Benzonitrile	X
119619	Benzophenone	X
98077	Benzotrichloride	X
98884	Benzoyl chloride	X
94360	Benzoyl peroxide	X
140114	Benzyl acetate	X
100516	Benzyl alcohol	X
120514	Benzyl benzoate	X
100447	Benzyl chloride	X		X	X
98873	Benzyl dichloride	X
100469	Benzylamine	X
1896624	Benzylideneacetone	X
92524	Biphenyl	X		X
542881	Bis(Chloromethyl)Ether	X
80057	Bisphenol A	X		X	X
	Brometone	X		X	X
108861	Bromobenzene	X
75252	Bromoform	X		X
27497514	Bromonaphthalene	X
106990	Butadiene (1,3-) -	X	X	X	X	X
	Butadiene and butene fractions	X		X	X
106978	Butane -	X	X	X	X
110634	Butanediol (1,4-)	X		X	X
	Butanes, mixed	X		X	X
	Butenes, mixed	X		X	X
123864	Butyl acetate (n-) (Acetic Acid, butyl ester)	X		X	X
105464	Butyl acetate (sec-)	X
540885	Butyl acetate (tert-)	X
141322	Butyl acrylate (n-)	X		X	X
71363	Butyl alcohol (n-)	X		X	X
78922	Butyl alcohol (sec-)	X		X	X
75650	Butyl alcohol (tert-)	X		X	X
136607	Butyl benzoate	X
507200	Butyl chloride (tert-)	X
75912	Butyl hydroperoxide (tert-)	X		X	X
109795	Butyl mercaptan (n-)	X
97881	Butyl methacrylate (n-)	X
585-07-9	Butyl methacrylate (tert-)	X
88186	Butyl phenol (tert-)	X
109739	Butylamine (n-)	X
13952846	Butylamine (s-)	X
75649	Butylamine (t-)	X
98066	Butylbenzene (tert-)	X
98737	Butylbenzoic acid (p-tert-) -	X	X			X
85867	Butylbenzyl phthalate	X		X	X
107880	Butylene glycol (1,3-)			X
123728	Butyraldehyde (n-)	X		X	X
107926	Butyric acid (n-) -	X	X			X
106310	Butyric anhydride (n-)	X		X	X
96480	Butyrolacetone—must be Butyrolactone	X
109740	Butyronitrile	X
62544	Calcium acetate	X
4075814	Calcium propionate	X
142621	Caproic acid	X
105602	Caprolactam	X		X	X
63252	Carbaryl	X
86748	Carbazole	X
75150	Carbon disulfide	X		X	X
558134	Carbon tetrabromide	X		X
56235	Carbon tetrachloride	X		X	X
75730	Carbon tetrafluoride	X
75876	Chloral	X
2435532	Chloranil (o-chloranil)	X
79118	Chloroacetic acid	X			X
532274	Chloroacetophenone (2-)	X
108429	Chloroaniline (m-)	X
95512	Chloroaniline (o-)	X
106478	Chloroaniline (p-)	X
89985	Chlorobenzaldehyde (2-)	X
587042	Chlorobenzaldehyde (3-)	X
104881	Chlorobenzaldehyde (4-)	X
108907	Chlorobenzene	X		X	X
118912	Chlorobenzoic acid (2-)	X
535808	Chlorobenzoic acid (3-)	X
74113	Chlorobenzoic acid (4-)	X
2136892	Chlorobenzotrichloride (o-)	X
5216251	Chlorobenzotrichloride (p-)	X
609654	Chlorobenzoyl chloride (o-)	X
122010	Chlorobenzoyl chloride (p-)	X
25497294	Chlorodifluoroethane	X
75456	Chlorodifluoromethane	X			X
	Chlorofluorocarbons	X
67663	Chloroform	X		X	X
	Chlorohydrin	X
25586430	Chloronaphthalene	X
121733	Chloronitrobenzene (m-)	X
88733	Chloronitrobenzene (o-)	X
100005	Chloronitrobenzene (p-)	X		X	X
108430	Chlorophenol (m-)	X
95578	Chlorophenol (o-)	X
106489	Chlorophenol (p-)	X
126998	Chloroprene -	X
7790945	Chlorosulfonic acid	X
108418	Chlorotoluene (m-)	X
95498	Chlorotoluene (o-)	X
106434	Chlorotoluene (p-)	X
79389	Chlorotrifluoroethylene	X
67481	Choline chloride	X
218019	Chrysene	X
140103	Cinnamic acid	X
77929	Citric acid	X		X	X
	Cobalt acetate	X
142712	Copper acetate	X
108394	Cresol and cresylic acid (m-)	X
95487	Cresol and cresylic acid (o-)	X
106445	Cresol and cresylic acid (p-)	X
1319773	Cresols and cresylic acids (mixed)	X
4170300	Crotonaldehyde	X		X
3724650	Crotonic acid -	X	X	X		X
98828	Cumene -	X	X	X	X
80159	Cumene hydroperoxide -	X	X	X	X	X
420042	Cyanamide	X
372098	Cyanoacetic acid	X
	Cyanoformamide	X
506774	Cyanogen chloride	X
108805	Cyanuric acid	X
108770	Cyanuric chloride	X		X	X
110827	Cyclohexane -	X	X	X	X
68512152	Cyclohexane, oxidized	X		X	X
108930	Cyclohexanol -	X	X	X	X	X
108941	Cyclohexanone -	X	X	X	X	X
100641	Cyclohexanone oxime	X		X	X
110838	Cyclohexene	X		X	X
108918	Cyclohexylamine	X
29965977	Cyclooctadiene	X
3806595	Cyclooctadiene (1,3-)			X
111784	Cyclooctadiene (1,5-)	X
542-92-7	Cyclopentadiene (1,3-)	X
75194	Cyclopropane	X		X	X
91178	Decahydronaphthalene	X
117828	Di(2-methoxyethyl) phthalate	X
123422	Diacetone alcohol	X		X	X
25260-60-0	Diacetoxy-2-Butene (1,4-)	X
1087-21-4	Diallyl isophthalate	X
131179	Diallyl phthalate	X
27576041	Diaminobenzoic acids	X
137097	Diaminophenol hydrochloride	X
	Dibutanized aromatic concentrate	X		X
17-83-9	Dibutoxyethyl phthalate	X
760236	Dichloro-1-butene (3,4-)	X
764410	Dichloro-2-butene (1,4-)	X
27134276	Dichloroaniline (mixed isomers)	X
541731	Dichlorobenzene (m-)	X
95501	Dichlorobenzene (o-)	X
106467	Dichlorobenzene (p-)	X
91941	Dichlorobenzidine (3,3’-)	X
75718	Dichlorodifluoromethane	X		X	X
75785	Dichlorodimethylsilane	X		X	X
107062	Dichloroethane (1,2-) (Ethylene dichloride) (EDC) -	X	X
111444	Dichloroethyl ether (bis(2-chloroethyl) ether)	X
540590	Dichloroethylene (1,2-)	X
75434	Dichlorofluoromethane	X		X	X
96231	Dichlorohydrin (a-)	X		X
99-54-7	Dichloronitrobenzenes	X
628-76-2	Dichloropentanes	X
120832	Dichlorophenol (2,4-)	X
78999	Dichloropropane (1,1-)	X
542756	Dichloropropene (1,3-)	X
	Dichloropropene/dichloropropane (mixed)	X
1320372	Dichlorotetrafluoroethane	X
461585	Dicyandiamide	X
101837	Dicyclohexylamine	X
77736	Dicyclopentadiene	X
111422	Dietholamine (2,2’-Iminodiethanol)			X	X
84662	Diethyl phthalate	X
64675	Diethyl sulfate	X
109897	Diethylamine	X
579668	Diethylaniline (2,6-)	X
91667	Diethylaniline (N,N-)	X
25340174	Diethylbenzene	X		X	X
111466	Diethylene glycol	X		X	X
112732	Diethylene glycol dibutyl ether	X
112367	Diethylene glycol diethyl ether	X
111966	Diethylene glycol dimethyl ether	X
112345	Diethylene glycol monobutyl ether	X
124174	Diethylene glycol monobutyl ether acetate	X
111900	Diethylene glycol monoethyl ether	X
112152	Diethylene glycol monoethyl ether acetate	X
111773	Diethylene glycol monomethyl ether	X
629389	Diethylene glycol monomethyl ether acetate	X
75379	Difluoroethane (1,1-)	X
25167708	Diisobutylene	X
26761400	Diisodecyl phthalate	X		X	X
28553120	Diisononyl phthalate	X		X
27554263	Diisooctyl phthalate	X
108189	Diisopropylamine	X
674828	Diketene (4-methylene- 2-oxetanone) -	X	X
115106	Dimethyl ether -	X	X
131113	Dimethyl phthalate	X
77781	Dimethyl sulfate	X
75183	Dimethyl sulfide	X
67685	Dimethyl sulfoxide	X
120616	Dimethyl terephthalate -	X	X	X	X	X
127195	Dimethylacetamide (N,N-)	X
124403	Dimethylamine	X		X
108010	Dimethylaminoethanol (2-)	X
121697	Dimethylaniline (N,N)	X
119937	Dimethylbenzidine (3,3’-)	X
68122	Dimethylformamide (N,N-)	X
57147	Dimethylhydrazine (1,1-)	X
526750	Dimethylphenol (2,3-) Xylenol (2,3-)	X
105679	Dimethylphenol (2,4-) Xylenol (2,4-)	X
95874	Dimethylphenol (2,5-) Xylenol (2,5-)	X
576261	Dimethylphenol (2,6-) Xylenol (2,6-)	X		X
95658	Dimethylphenol (3,4-) Xylenol (3,4-)	X
108689	Dimethylphenol (3,5-) Xylenol (3,5-)	X
25154545	Dinitrobenzenes (NOS)c	X
99343	Dinitrobenzoic acid (3,5-)	X
51285	Dinitrophenol (2,4-)	X
602017	Dinitrotoluene (2,3-)	X
121142	Dinitrotoluene (2,4-)	X		X	X
606202	Dinitrotoluene (2,6-)	X		X	X
610399	Dinitrotoluene (3,4-)	X
117817	Dioctyl phthalate	X		X	X
97392	Di-o-tolyguanidine	X
123911	Dioxane (1,4-) (1,4-Diethyleneoxide)	X
646060	Dioxolane (1,3-)	X
101815	Diphenyl methane	X
101848	Diphenyl oxide	X
102089	Diphenyl thiourea (N,N’-)	X
122394	Diphenylamine	X
110985	Dipropylene glycol	X
112414	Dodecene (branched)	X
25378227	Dodecene (n-)	X		X	X
123013	Dodecyl benzene (branched)	X			X
121158585	Dodecyl phenol (branched)	X
28675174	Dodecylaniline	X
121013	Dodecylbenzene (n-)	X
27176870	Dodecylbenzene sulfonic acid	X		X	X
25155300	Dodecylbenzene sulfonic acid, sodium salt	X		X	X
	Dodecylbenzene, nonlinear	X		X	X
25103586	Dodecylmercaptan (branched)	X
27193868	Dodecylphenol	X
106898	Epichlorohydrin (1-chloro-2,3-epoxypropane)	X		X	X
74840	Ethane -	X	X
64175	Ethanol -	X	X	X	X
141435	Ethanolamine (2-Aminoethanol)	X		X	X
141786	Ethyl acetate (Acetic acid, ethyl ester)1 -	X	X	X	X
141979	Ethyl acetoacetate	X
140885	Ethyl acrylate	X		X	X
74964	Ethyl bromide	X
75003	Ethyl chloride (Chloroethane) -	X	X	X	X
105395	Ethyl chloroacetate	X
107120	Ethyl cyanide	X		X
60297	Ethyl ether	X
75081	Ethyl mercaptan (ethanethiol)	X
122510	Ethyl orthoformate	X
95921	Ethyl oxalate	X
41892711	Ethyl sodium oxalacetate	X
75047	Ethylamine	X
103695	Ethylaniline (n-)	X
578541	Ethylaniline (o-)	X
100414	Ethylbenzene	X		X	X
9004573	Ethylcellulose	X
105566	Ethylcyanoacetate	X
74851	Ethylene -	X	X	X	X
96491	Ethylene carbonate	X
107073	Ethylene chlorohydrin	X
106934	Ethylene dibromide (Dibromoethane)	X		X	X
107062	Ethylene dichloride -	X	X	X	X	X
107211	Ethylene glycol	X		X
111557	Ethylene glycol diacetate	X
112481	Ethylene glycol dibutyl ether	X
629141	Ethylene glycol diethyl ether (1,2-diethoxyethane)	X
110714	Ethylene glycol dimethyl ether	X
542596	Ethylene glycol monoacetate	X
111762	Ethylene glycol monobutyl ether	X		X	X
112072	Ethylene glycol monobutyl ether acetate	X			X
110805	Ethylene glycol monoethyl ether	X		X
111159	Ethylene glycol monoethyl ether acetate	X		X	X
109864	Ethylene glycol monomethyl ether	X		X	X
110496	Ethylene glycol monomethyl ether acetate	X
	Ethylene glycol monooctyl ether	X
122996	Ethylene glycol monophenyl ether	X
2807309	Ethylene glycol monopropyl ether	X
75218	Ethylene oxide -	X	X	X	X	X
107153	Ethylenediamine	X
60004	Ethylenediamine tetraacetic acid	X
151564	Ethylenimine (Aziridine)	X
149575	Ethylhexanoic acid (2-)	X
103117	Ethylhexyl acrylate (2-isomer)	X
	Ethylhexyl succinate (2-)	X
25550145	Ethylmethylbenzene	X		X
206440	Fluoranthene	X
50000	Formaldehyde -	X	X	X	X	X
75127	Formamide	X
64186	Formic acid -	X	X			X
110178	Fumaric acid	X
111308	Glutaraldehyde	X
367475	Glyceraldehyde	X
56815	Glycerol	X		X	X
26545737	Glycerol dichlorohydrin	X
556525	Glycidol	X
56406	Glycine	X
	Glycol ethers	X
107222	Glyoxal (ethane dial) -	X	X			X
	Guanidine	X
506934	Guanidine nitrate	X
592-76-7	Heptenes	X		X	X
118741	Hexachlorobenzene	X
87683	Hexachlorobutadiene	X
77474	Hexachlorocyclopentadiene	X
67721	Hexachloroethane	X
36653824	Hexadecyl alcohol (1-hexadecanol)	X
4860031	Hexadecyl chloride			X
592450	Hexadiene (1,4-)	X
3323533	Hexamethylene diamine adipate	X		X	X
124094	Hexamethylenediamine	X		X	X
100970	Hexamethylenetetramine	X		X	X
110543	Hexane	X		X	X
106694	Hexanetriol (1,2,6-)	X
111273	Hexyl alcohol	X
107415	Hexylene glycol	X
	Higher glycols	X
74908	Hydrogen cyanide -	X	X	X		X
123319	Hydroquinone	X
141311	Hydroxyadipaldehyde	X
99967	Hydroxybenzoic acid (p-)	X
111422	Iminodiethanol (2,2-) (diethanolamine)	X
123513	Isoamyl alcohol	X
	Isoamyl chloride (mixed)	X
26760645	Isoamylene	X
75285	Isobutane	X		X	X
78831	Isobutanol	X		X	X
110190	Isobutyl acetate	X
106638	Isobutyl acrylate	X
97869	Isobutyl methacrylate	X
109535	Isobutyl vinyl ether	X
115117	Isobutylene	X		X	X
78842	Isobutyraldehyde (2-methyl-propanal)	X		X	X
79312	Isobutyric acid -	X	X			X
25339177	Isodecanol	X		X
	Isohexyldecyl alcohol	X
27458-94-2	Isononyl alcohol	X
26952216	Isooctyl alcohol	X		X
78784	Isopentane	X		X	X
78591	Isophorone	X
7027114	Isophorone nitrile	X
121915	Isophthalic acid -	X	X	X		X
78795	Isoprene	X		X	X
67630	Isopropanol	X		X	X
108214	Isopropyl acetate	X
75296	Isopropyl chloride	X
108203	Isopropyl ether	X
75310	Isopropylamine	X
25168063	Isopropylphenol	X
463514	Ketene	X		X	X
79334	Lactic acid	X
1643-20-5	Lauryl dimethylamine oxide	X
6080564	Lead acetate	X
17976-436-1	Lead phthalate	X
1335326	Lead subacetate	X
	Linear alcohols, ethoxylated and sulfated, sodium salt, mixed	X		X	X
	Linear alcohols, ethoxylated, mixed	X		X	X
	Linear alcohols, sulfated, sodium salt, mixed			X	X
	Linear alkyl benzene (linear dodecylbenzene)	X
142723	Magnesium acetate (Acetic acid, magnesium salt)	X		X
110167	Maleic acid -	X	X
108316	Maleic anhydride -	X	X	X	X	X
123331	Maleic hydrazide	X
6915157	Malic acid	X
108781	Melamine (1,3,5-triazine-2,4,6-triamine)	X		X
1600277	Mercuric acetate	X
141797	Mesityl oxide -	X	X	X	X
121471	Metanilic acid	X
79414	Methacrylic acid	X
126987	Methacrylonitrile	X		X
513428	Methallyl alcohol	X
563473	Methallyl chloride	X
74828	Methane -	X	X
67561	Methanol -	X	X	X	X
63683	Methionine	X
79209	Methyl acetate -	X	X
105453	Methyl acetoacetate	X
96333	Methyl acrylate	X
74839	Methyl bromide (Bromomethane)	X
	Methyl butenols	X
37365712	Methyl butynol	X
74873	Methyl chloride (Chloromethane) -	X	X	X	X
78933	Methyl ethyl ketone (2-butanone) -	X	X	X	X	X
107313	Methyl formate	X
60344	Methyl hydrazine	X
74884	Methyl iodide -	X	X	X
108112	Methyl isobutyl carbinol	X
108101	Methyl isobutyl ketone (Hexone)	X		X	X
624839	Methyl isocyanate	X
74931	Methyl mercaptan	X
80626	Methyl methacrylate	X		X	X
98851	Methyl phenyl carbinol	X
119368	Methyl salicylate	X
1634044	Methyl tert-butyl ether	X		X	X
74895	Methylamine	X		X	X
100618	Methylaniline (N-)	X
910807	Methylbenzene (80/20 mixture) -	X
137326	Methylbutanol (2-)	X
108872	Methylcyclohexane	X
25639423	Methylcyclohexanol	X
1331222	Methylcyclohexanone	X
75092	Methylene chloride (Dichloromethane)	X		X	X
101779	Methylene dianiline (4,4’)	X
101688	Methylene diphenyl diisocyanate (4,4’) (MDI)	X
79696	Methylionones (a-)	X
90120	Methylnaphthalene (1-)	X
91576	Methylnaphthalene (2-)	X
107835	Methylpentane (2-)	X		X
77758	Methylpentynol	X
98839	Methylstyrene (a-) -	X	X			X
110918	Morpholine	X
91203	Naphthalene	X		X	X
85472	Naphthalene sulfonic acid (a-)	X
120183	Naphthalene sulfonic acid (b-)	X
1338-24-5	Naphthenic acids	X
90153	Naphthol (a-)	X
135193	Naphthol (b-)	X
567180	Naphtholsulfonic acid (1-)	X
134327	Naphthylamine (1-)	X
91598	Naphthylamine (2-)	X
84866	Naphthylamine sulfonic acid (1,4-)	X
81163	Naphthylamine sulfonic acid (2,1-)	X
75832	Neohexane	X
75989	Neopentanoic acid	X
126307	Neopentyl glycol	X
142825	n-Heptane	X		X	X
3349-06-2	Nickel formate	X
	Nitriloacetic acid	X
99092	Nitroaniline (m-)	X
88744	Nitroaniline (o-)	X
100016	Nitroaniline (p-)	X
91236	Nitroanisole (o-)	X
100174	Nitroanisole (p-)	X
98953	Nitrobenzene	X		X	X
121926	Nitrobenzoic acid (m-)	X
552169	Nitrobenzoic acid (o-)	X
62237	Nitrobenzoic acid (p-)	X
122-04-3	Nitrobenzoyl chloride (p-)	X
79243	Nitroethane	X
556887	Nitroguanidine	X
75525	Nitromethane	X
86577	Nitronaphthalene (1-)	X
88755	Nitrophenol (o-)	X
100027	Nitrophenol (p-)	X
25322014	Nitropropane (1-)	X
79469	Nitropropane (2-)	X
1321126	Nitrotoluene (all isomers)	X
99081	Nitrotoluene (m-)	X
88722	Nitrotoluene (o-)	X
99990	Nitrotoluene (p-)	X
25168041	Nitroxylene	X
27215958	Nonene	X		X	X
1430808	Nonyl alcohol	X		X	X
1081772	Nonylbenzene (branched)	X
25154523	Nonylphenol	X		X	X
25154523	Nonylphenol (branched)	X
9016459	Nonylphenol, ethoxylated	X		X	X
111659	Octane	X
111660	Octene-1	X		X	X
107459	Octylamine (tert-)	X
27193288	Octylphenol	X
	Oil-soluble petroleum sulfonate calcium salt	X		X	X
	Oil-soluble petroleum sulfonate sodium salt	X		X
144627	Oxalic acid	X
471465	Oxamide	X
	Oxo chemicals	X
30525894	Paraformaldehyde	X
123637	Paraldehyde	X
87865	Pentachlorophenol	X
78-11-5	Pentaerythritol tetranitrate	X
109660	Pentane	X		X
115775	Pentanethiol	X		X	X
6032297	Pentanol (2-)	X
584021	Pentanol (3-)	X
109671	Pentene (1-)	X		X	X
109682	Pentene (2-)	X
79210	Peracetic acid	X
594423	Perchloromethyl mercaptan	X
62442	Phenacetin	X
85018	Phenanthrene	X
94702	Phenetidine (o-)	X
156434	Phenetidine (p-)	X
108952	Phenol -	X	X	X	X	X
77098	Phenolphthalein	X
1333397	Phenolsulfonic acids (all isomers)	X
91407	Phenyl anthranilic acid (all isomers)	X
108452	Phenylenediamine (m-)	X
95545	Phenylenediamine (o-)	X
106503	Phenylenediamine (p-)	X
89-25-8	Phenylmethylpyrazolone	X
103651	Phenylpropane	X		X	X
108736	Phloroglucinol (1,3,5-benzenetriol)	X
75445	Phosgene	X		X	X
88993	Phthalic acid	X
85449	Phthalic anhydride -	X	X	X	X	X
85416	Phthalimide	X
91156	Phthalonitrile	X
109-06-8	Picoline (a-)	X
108996	Picoline (b-)	X
96-91-3	Picramic acid	X
88891	Picric acid	X
110850	Piperazine	X
504609	Piperlyene	X
25322683	Polyethylene glycol	X
25322694	Polypropylene glycol	X
127082	Potassium acetate	X
74986	Propane -	X	X	X	X
57578	Propiolactone (beta-) (2-Oxetanone)	X
123386	Propionaldehyde	X		X	X
79094	Propionic acid -	X	X	X		X
109604	Propyl acetate (n-)	X
71238	Propyl alcohol (n-)	X		X	X
540545	Propyl chloride	X
107108	Propylamine	X
115071	Propylene -	X	X	X	X
127004	Propylene chlorohydrin	X		X
57556	Propylene glycol	X		X	X
107982	Propylene glycol monomethyl ether	X
75569	Propylene oxide -	X	X	X	X	X
95636	Pseudocumene	X
137-17-7	Pseudocumidine	X
129000	Pyrene	X
110861	Pyridine	X
616455	Pyrrolidone (2-)	X
106514	Quinone	X
108463	Resorcinol (1,3-benzenediol)	X
69727	Salicylic acid	X
11206	Sebacic acid	X
127093	Sodium acetate	X
532321	Sodium benzoate	X
3926623	Sodium chloroacetate	X
143339	Sodium cyanide	X		X
25155-30-0	Sodium dodecyl benzene sulfonate	X
141537	Sodium formate	X
124414	Sodium methoxide	X
62760	Sodium oxalate	X
139026	Sodium phenate	X
137406	Sodium propionate	X
110441	Sorbic acid	X
50704	Sorbitol (D-Glucitol)	X		X	X
588590	Stilbene	X
100425	Styrene -	X	X	X	X	X
110156	Succinic acid	X
110612	Succinonitrile	X
121573	Sulfanilic acid	X
126330	Sulfolane	X
	Synthesis gas	X
	Tallow acids, sodium salt Tetra (methyl-ethyl) plumbane	X
526830	Tartaric acid	X
100210	Terephthalic acid -	X	X	X	X	X
100209	Terephthaloyl chloride	X
	Tetra (methyl-ethyl) lead	X		X	X
632791	Tetrabromophthalic anhydride	X
634-90-2	Tetrachlorobenzene (1,2,3,5-)	X
95943	Tetrachlorobenzene (1,2,4,5-)	X
79345	Tetrachloroethane (1,1,2,2-)	X		X
127184	Tetrachloroethylene (Perchloroethylene)	X		X	X
117088	Tetrachlorophthalic anhydride	X
78002	Tetraethyl lead	X		X	X
112607	Tetraethylene glycol	X
112572	Tetraethylenepentamine	X
116-14-3	Tetrafluoroethylene	X
109999	Tetrahydrofuran	X		X	X
119642	Tetrahydronapthalene	X
85438	Tetrahydrophthalic anhydride	X
110601	Tetramethylenediamine	X
110189	Tetramethylethyle-nediamine	X
75741	Tetramethyllead	X		X	X
62566	Thiourea	X
108883	Toluene	X		X	X
95807	Toluene diamine (2,4-)	X		X
584849	Toluene diisocyanate (2,4-)	X
26471627	Toluene diisocyanates (mixture)	X		X	X
1333079	Toluene sulfonamides (o- and p-)	X
104154	Toluene sulfonic acids	X
584-84-9 (2,4-TDI) and 91-08-7 (2,6-TDI)	Toluene-2,4 (and 2,6)-diisocyanate (80/20) mixture			X
98599	Toluenesulfonyl chloride	X
95534	Toluidine (o-)	X
76039	Trichloroacetic acid	X
634935	Trichloroaniline (2,4,6-)	X
87616	Trichlorobenzene (1,2,3-)	X
120821	Trichlorobenzene (1,2,4-)	X
108703	Trichlorobenzene (1,3,5-)	X
71556	Trichloroethane (1,1,1-)	X		X	X
79005	Trichloroethane (1,1,2-)	X		X	X
79016	Trichloroethylene	X		X	X
75694	Trichlorofluoromethane	X		X	X
95954	Trichlorophenol (2,4,5-)	X
96184	Trichloropropane (1,2,3-)	X
1330785	Tricresyl phosphate	X
112709	Tridecyl alcohol	X
102716	Triethanolamine	X		X	X
121448	Triethylamine	X
112276	Triethylene glycol	X		X	X
112492	Triethylene glycol dimethyl ether	X
112505	Triethylene glycol monoethyl ether	X
112356	Triethylene glycol monomethyl ether	X
7756947	Triisobutylene	X
552307	Trimellitic anhydride	X
144194	Trimethyl-1,3-pentanediol (2,2,4-)	X
16325636	Trimethyl-1-pentanol (2,4,4-)	X
75503	Trimethylamine	X
933482	Trimethylcyclohexanol	X
2408379	Trimethylcyclohexanone	X
34216347	Trimethylcyclohexylamine	X
77996	Trimethylolpropane	X
540841	Trimethylpentane (2,2,4-)	X
24800440	Tripropylene glycol	X
57136	Urea	X
88120	Vinyl (N-)-pyrrolidone (2-)	X
108054	Vinyl acetate (Acetic acid, ethenyl ester)	X		X	X
75014	Vinyl chloride (Chloroethylene)	X		X	X
25013154	Vinyl toluene	X
100403	Vinylcyclohexene (4-)	X
75354	Vinylidene chloride (1,1-dichloroethylene)	X		X	X
140896	Xanthates	X
108383	Xylene (m-)	X	X	X	X
1330207	Xylene (NOS)c	X		X	X
95476	Xylene (o-) -	X	X	X	X
106423	Xylene (p-) -	X	X	X	X
25321419	Xylene sulfonic acid	X
1300716	Xylenols (Mixed)	X
1300738	Xylidene (2,3-)	X
1300738	Xylidene (2,4-)	X
1300738	Xylidene (2,5-)	X
1300738	Xylidene (2,6-)	X
1300738	Xylidene (3,4-)	X
1300738	Xylidene (3,5-)	X
5970456	Zinc acetate	X

^a CAS Number = Chemical Abstract Service number.

^b Isomer means all structural arrangements for the same number of atoms of each element and does not mean salts, esters or derivatives.

Table 1. List of Regulated SOCMI Chemicals

Authority

The provisions of this § 129.71a added under section 5(a)(1) and (8) of the Air Pollution Control Act (35 P.S. § 4005(a)(1) and (8)).

Source

The provisions of this § 129.71a added January 20, 2023, effective January 21, 2023, 53 Pa.B. 465.

Cross References

This section cited in 25 Pa. Code § 121.1 (relating to definitions).