On December 20, 2019, EPA finalized the designation of 20 high-priority chemicals. These chemicals will move through the process required by TSCA to evaluate any unreasonable risks they may present to human health or the environment. One of these chemicals is trans DCE, often used as an alternative to TCE, perc, and nPB. Trans-DCE is on the TURA list of toxic or hazardous substances. It is reportable if more than 10,000 lbs. are otherwise used in one calendar year. Read more about trans-DCE.