EPA regulatory flags

TP: Proposed section 4 test rule or order

Indicates a substance that is the subject of a proposed TSCA section 4 test rule or order.

148 substances carry it in the July 2026 release, of which 132 are designated active.

What it obliges

Nothing yet. Worth tracking, because a final rule carries testing obligations and a lower reporting threshold.

Substances carrying TP

Showing 100 of 148, active substances first. Search the full Inventory for a specific one.

CAS number Substance Status Other flags
35203-06-6 Benzenamine, 2-ethyl-6-methyl-N-methylene- Active PMN SP
61789-72-8 Quaternary ammonium compounds, benzyl(hydrogenated tallow alkyl)dimethyl, chlorides Active SP UVCB
61790-13-4 Naphthenic acids, sodium salts Active SP UVCB
65996-91-0 Distillates (coal tar), upper Active SP UVCB
68308-01-0 Tail gas (petroleum), cracked distillate hydrotreater stripper Active SP UVCB
68478-20-6 Residues (petroleum), steam-cracked petroleum distillates cyclopentadiene conc., C4-cyclopentadiene-free Active SP UVCB
68526-82-9 Alkenes, C6-10, hydroformylation products, high-boiling Active SP UVCB
68909-77-3 Ethanol, 2,2'-oxybis-, reaction products with ammonia, morpholine derivs. residues Active SP UVCB
68937-41-7 Phenol, isopropylated, phosphate (3:1) Active R UVCB
8007-45-2 Tar, coal Active SP UVCB
100-53-8 Benzenemethanethiol Active SP
104-91-6 Phenol, 4-nitroso- Active SP
110-03-2 2,5-Hexanediol, 2,5-dimethyl- Active SP
115-86-6 Phosphoric acid, triphenyl ester Active T
124-63-0 Methanesulfonyl chloride Active SP
142-30-3 3-Hexyne-2,5-diol, 2,5-dimethyl- Active SP
28106-30-1 Benzene, ethenylethyl- Active SP
3194-55-6 Cyclododecane, 1,2,5,6,9,10-hexabromo- Active S
35203-08-8 Benzenamine, 2,6-diethyl-N-methylene- Active SP
36483-60-0 Benzene, 1,1'-oxybis-, hexabromo deriv. Active S
37764-25-3 Acetamide, 2,2-dichloro-N,N-di-2-propen-1-yl- Active SP
40088-47-9 Benzene, 1,1'-oxybis-, tetrabromo deriv. Active S
460-00-4 Benzene, 1-bromo-4-fluoro- Active SP
553-26-4 4,4'-Bipyridine Active SP
61789-73-9 Quaternary ammonium compounds, benzylbis(hydrogenated tallow alkyl)methyl, chlorides Active UVCB
63936-56-1 Benzene, 1,2,3,4,5-pentabromo-6-(tetrabromophenoxy)- Active S
68131-13-5 Naphthenic acids, reaction products with diethylenetriamine Active UVCB
68153-60-6 Fatty acids, tall-oil, reaction products with diethylenetriamine, acetates Active UVCB
68424-85-1 Quaternary ammonium compounds, benzyl-C12-16-alkyldimethyl, chlorides Active UVCB
68442-77-3 2-Butenediamide, (2E)-, N1,N4-bis[2-(4,5-dihydro-2-nortall-oil alkyl-1H-imidazol-1-yl)ethyl] derivs. Active UVCB
68607-28-3 Quaternary ammonium compounds, (oxydi-2,1-ethanediyl)bis[coco alkyldimethyl, dichlorides Active UVCB
68609-96-1 Oxirane, 2-[(C8-10-alkyloxy)methyl] derivs. Active UVCB
68609-97-2 Oxirane, 2-[(C12-14-alkyloxy)methyl] derivs. Active UVCB
68909-18-2 Pyridinium, 1-(phenylmethyl)-, Et Me derivs., chlorides Active UVCB
68928-80-3 Benzene, 1,1'-oxybis-, heptabromo deriv. Active S
68937-40-6 Phenol, isobutylenated, phosphate (3:1) Active UVCB
68952-33-0 Tar acids, cresylic, C8-rich, phosphates Active UVCB
68952-35-2 Tar acids, cresylic, Ph phosphates Active UVCB
74398-71-3 9-Octadecenoic acid, 12-(2-oxiranylmethoxy)-, 1,2,3-propanetriyl ester, homopolymer Active FRI
98-16-8 Benzenamine, 3-(trifluoromethyl)- Active SP
100-21-0 1,4-Benzenedicarboxylic acid Active
101-90-6 Oxirane, 2,2'-[1,3-phenylenebis(oxymethylene)]bis- Active
106-37-6 Benzene, 1,4-dibromo- Active
106-90-1 2-Propenoic acid, 2-oxiranylmethyl ester Active
106-92-3 Oxirane, 2-[(2-propen-1-yloxy)methyl]- Active
107-13-1 2-Propenenitrile Active
108-70-3 Benzene, 1,3,5-trichloro- Active
108-86-1 Benzene, bromo- Active
111-11-5 Octanoic acid, methyl ester Active
118-48-9 2H-3,1-Benzoxazine-2,4(1H)-dione Active
121-69-7 Benzenamine, N,N-dimethyl- Active
122-60-1 Oxirane, 2-(phenoxymethyl)- Active
123-30-8 Phenol, 4-amino- Active
1241-94-7 Phosphoric acid, 2-ethylhexyl diphenyl ester Active
126-80-7 Disiloxane, 1,1,3,3-tetramethyl-1,3-bis[3-(2-oxiranylmethoxy)propyl]- Active
128-44-9 1,2-Benzisothiazol-3(2H)-one, 1,1-dioxide, sodium salt (1:1) Active
13236-02-7 Oxirane, 2,2',2''-[1,2,3-propanetriyltris(oxymethylene)]tris- Active
13561-08-5 Oxirane, 2,2'-[[2-(2-oxiranylmethoxy)-1,3-phenylene]bis(methylene)]bis- Active
14228-73-0 Oxirane, 2,2'-[1,4-cyclohexanediylbis(methyleneoxymethylene)]bis- Active
17557-23-2 Oxirane, 2,2'-[(2,2-dimethyl-1,3-propanediyl)bis(oxymethylene)]bis- Active
17963-04-1 Oxirane, 2-[[3-(ethoxydimethylsilyl)propoxy]methyl]- Active
1809-19-4 Phosphonic acid, dibutyl ester Active
20217-01-0 Oxirane, 2-[(2,4-dibromophenoxy)methyl]- Active
2210-79-9 Oxirane, 2-[(2-methylphenoxy)methyl]- Active
2224-15-9 Oxirane, 2,2'-[1,2-ethanediylbis(oxymethylene)]bis- Active
2238-07-5 Oxirane, 2,2'-[oxybis(methylene)]bis- Active
22421-59-6 Oxirane, 2-[(2,6-dibromo-4-methylphenoxy)methyl]- Active
2425-79-8 Oxirane, 2,2'-[1,4-butanediylbis(oxymethylene)]bis- Active
2426-08-6 Oxirane, 2-(butoxymethyl)- Active
2461-15-6 Oxirane, 2-[[(2-ethylhexyl)oxy]methyl]- Active
25155-23-1 Phenol, dimethyl-, 1,1',1''-phosphate Active
2528-36-1 Phosphoric acid, dibutyl phenyl ester Active
2530-83-8 Oxirane, 2-[[3-(trimethoxysilyl)propoxy]methyl]- Active
25377-73-5 2,5-Furandione, 3-(dodecen-1-yl)dihydro- Active
26447-14-3 Oxirane, 2-[(methylphenoxy)methyl]- Active
26544-38-7 2,5-Furandione, dihydro-3-(tetrapropenyl)- Active
26761-45-5 Neodecanoic acid, 2-oxiranylmethyl ester Active
27193-86-8 Phenol, dodecyl- Active
27859-58-1 Butanedioic acid, 2-(tetrapropenyl)- Active
28108-99-8 Phosphoric acid, (1-methylethyl)phenyl diphenyl ester Active
28777-98-2 2,5-Furandione, dihydro-3-(octadecen-1-yl)- Active
2897-60-1 Oxirane, 2-[[3-(diethoxymethylsilyl)propoxy]methyl]- Active
29385-43-1 1H-Benzotriazole, 6(or 7)-methyl- Active
29761-21-5 Phosphoric acid, isodecyl diphenyl ester Active
3072-84-2 Oxirane, 2,2'-[(1-methylethylidene)bis[(2,6-dibromo-4,1-phenylene)oxymethylene]]bis- Active
3101-60-8 Oxirane, 2-[[4-(1,1-dimethylethyl)phenoxy]methyl]- Active
3188-83-8 Benzenemethanol, 5-[1-methyl-1-[4-(2-oxiranylmethoxy)phenyl]ethyl]-2-(2-oxiranylmethoxy)- Active
32072-96-1 2,5-Furandione, 3-(hexadecen-1-yl)dihydro- Active
348-51-6 Benzene, 1-chloro-2-fluoro- Active
3568-29-4 2-Propanol, 1,3-bis(2-oxiranylmethoxy)- Active
4016-11-9 Oxirane, 2-(ethoxymethyl)- Active
4016-14-2 Oxirane, 2-[(1-methylethoxy)methyl]- Active
54208-63-8 Oxirane, 2,2'-[methylenebis(2,1-phenyleneoxymethylene)]bis- Active
5493-45-8 1,2-Cyclohexanedicarboxylic acid, 1,2-bis(2-oxiranylmethyl) ester Active
556-52-5 2-Oxiranemethanol Active
56-40-6 Glycine Active
56803-37-3 Phosphoric acid, (1,1-dimethylethyl)phenyl diphenyl ester Active
57-10-3 Hexadecanoic acid Active
576-26-1 Phenol, 2,6-dimethyl- Active
60501-41-9 Oxirane, 2-[[(9Z)-9-octadecen-1-yloxy]methyl]- Active

From the EPA non-confidential TSCA Inventory, July 2026 release. EPA also maintains a confidential portion it does not publish, so a substance absent from this data is not thereby unflagged.