EPA SNUR Imposes 90-Day Pre-Import Notification for Multi-Walled Carbon Nanotubes

EPA finalized a Significant New Use Rule (SNUR) under TSCA requiring importers and manufacturers of multi-walled carbon nanotubes (MWCNTs) to notify EPA at least 90 days before commencing any designated significant new use. Import is explicitly covered under the statutory definition of manufacture, making this rule a de facto import control measure for affected MWCNT applications.