PFAS Observer
The Toxic Substances Control Act (TSCA) has been regulating new and existing chemicals for almost 50 years. Under the TSCA, the EPA was given broad authority to track the thousands of existing commercial chemicals and regulate any new chemicals before they enter the market.
The TSCA requires manufacturers that intend to use a chemical that is designated as a “significant new use” to notify the EPA at least 90 days before they manufacture, import or process the chemical for that use, i.e., the “significant new use rule” (SNUR). This pre-manufacture notice requirement gives the EPA the opportunity to evaluate the potential use and, if necessary, to place restrictions on the chemical or prohibit its use to manage any risks before they can occur.