That initiative became the Safe Drinking Water and Toxic Enforcement Act of 1986, better known by its original name of Proposition 65.[60] In December 2013 DINP was listed as a chemical "known to the State of California to cause cancer"[61] This means that, starting December 2014, companies with ten or more employees manufacturing, distributing or selling the product(s) containing diisononyl phthalate (DINP) are required to provide a clear and reasonable warning for that product. The California Office of Environmental Health Hazard Assessment, charged with maintaining the Proposition 65 list and enforcing its provisions, has implemented a "No Significant Risk Level" of 146 μg/day for DINP, as of 1 April 2016.