On October 12, 2023, EPA introduced a proposed rule under the Toxic Substances Control Act (TSCA) to phase out trichloroethylene. Trichloroethylene is primarily used as a degreasing solvent for metal equipment, to make refrigerants, and to produce other hydrofluorocarbons, but it is a known human carcinogen. Trichloroethylene is also a skin and eye irritant and exposures to high levels can cause dizziness, headaches, sleepiness, confusion, nausea, liver damage, and even death. Harm caused by exposure to trichloroethylene is well known after the long exposure of soldiers at Camp Lejeune and from the movie “A Civil Action” which tells the story of children’s leukemia after exposure to contaminated water.

Under EPA’s proposed rule, most solvent uses would be eliminated within one year, including presence in consumer products. About 84% of the annual trichloroethylene production is used to make hydrofluorocarbon refrigerant, and EPA’s proposed rule would allow that use to continue for the next 8.5 years. Trichloroethylene is still expected to be used by NASA and the Department of Defense, and in lithium batteries under a 10-year phase out exemption.

If you use any products containing trichloroethylene, now is a good time to check in with the manufacturer to discuss if this regulation will affect your raw materials. Further information can be found on EPA’s “Risk Management for Trichloroethylene” webpage. Comments on the proposed rule must be received by December 15, 2023 using the docket identification number EPA-HQ-OPPT-2020-0465 through the Federal eRulemaking Portal at https://www.regulations.gov/.