Phase Out of Perchloroethylene from the Dry Cleaning Process
Transportation and Toxics Division
Following its identification of Perchloroethylene (Perc) as a toxic air contaminant (TAC) in 1991, CARB evaluated exposure to Perc in California. At the time dry cleaning operations were found to be a major source of Perc exposure to the public. CARB subsequently approved regulations to reduce Perc emissions from dry cleaning operations. Due to these regulations Perc will no longer be used in dry cleaning operations by January 1, 2023.
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