Absent EPA, Manufacturers Target California’s Draft 1,4-Dioxane Threshold

September 9, 2019
Manufacturers of cleaning and cosmetic products are challenging California’s draft proposal to set a health risk threshold of 1 part per million (ppm) for when they may have to remove 1,4-dioxane from their products, a challenge that is being intensified as the Trump EPA’s review of the chemical is unlikely to preempt the state’s effort. In an Aug. 29 letter to the California Department of Toxic Substances Control (DTSC), the Household & Commercial Products Association (HCPA) charges the state’s plan...


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