Toxic Substances Control Act (TSCA)

TSCA is a U.S. Environmental Protection Agency measure against persistent, bioaccumulative, and toxic (PBT) chemicals, which are subject to prohibitions and restrictions on manufacture, further processing, and distribution. All chemicals on the list are considered “existing.” All non-listed chemicals are designated as “new” and are evaluated and regulated prior to marketing. Only substances known to exist within TSCA may be imported into the U.S. under this regulation.

EPA TSCA (Toxic Substances Control Act)

The following chemicals are affected:

Chemicals Restriction
PIP (3:1) – phenol, isopropylated phosphate (CAS 68937-41-7)
Use expected to be completely banned from 2021-07-06 onwards
DeCaBDE – decabromodiphenyl ether (CAS 1163-19-5)
Use completely prohibited since  2021-03-08
HCBD – hexachlorobutadiene (CAS 87-68-3)
Use completely prohibited since  2021-03-08
PCTP – pentachlorothiophenol (CAS 133-49-3) Use prohibited since  2021-03-08 at a concentration of more than 1% w/w
TTBP – 2,4,6-tris(tert-butyl)phenol (CAS 732-26-3)
Use expected to be prohibited at concentrations greater than 0.3% w/w in containers less than 35 gallons as of 2026-01-06

Find out more about other regulations:

Prop. 65