Significant New Use Rules on Certain Chemical Substances

EPA is proposing significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) for 13 chemical substances which are the subject of premanufacture notices (PMNs). This action would require persons to notify EPA at least 90 days before commencing manufacture (defined by statute to include import) or processing of any of these 13 chemical substances for an activity that is designated as a significant new use by this proposed rule. If this proposed rule is made final, persons may not commence manufacture or processing for the significant new use until they have submitted a Significant New Use Notice, and EPA has conducted a review of the notice, made an appropriate determination on the notice, and has taken any actions as are required as a result of that determination.