The U.S. Environmental Protection Agency (EPA) has published a significant new use rule (SNUR ) under the Toxic Substances Control Act (TSC A) for the chemical substance identified as phenol, 2, 4-dimethyl-6-(1-methylpentadecyl). 77 Fed. Reg. 41692 (7/16/12). Effective August 15, 2012, the SNUR requires those who intend to manufacture, import or process the substance for an activity designated as a significant new use to notify EPA at least 90 days before commencing that activity. According to EPA, the absence of personal protective equipment to prevent dermal exposure is considered a new use requiring EPA review unless the chemical is used in a mixture and is present in concentrations less than 1.0 percent. The SNUR also exempts certain recordkeeping requirements once the chemical has been incorporated into a polymer.