The US EPA has proposed 30 TSCA significant new use rules (Snurs) for substances that were the subject of pre-manufacture notices (PMNs).
The Snurs include certain restrictions, such as how the substance may be manufactured or used, or protective measures that must be put in place. These are designed to safeguard against potential risks identified in each new substance’s premarket review.
Any manufacturer wishing to use a substance outside these parameters must first submit a significant new use notice (Snun), which gives the EPA the opportunity to review it and determine if it poses an unreasonable risk.
Seventeen of the substances were subject to 5(e) consent orders. But because these are only applicable to the original PMN submitter, the EPA is looking to impose Snurs to extend the requirements contained in each order to the rest of the market.