EPA has proposed a significant new use rule (SNUR) to protect consumers and workers from new uses and imports of toluene diisocyanates, chemicals that the agency says are currently used in residual amounts in the production of polyurethanes and consumer products such as coatings, adhesives, and sealants. According to EPA, diisocyanates are well-known dermal and inhalation sensitizers in the workplace and can cause asthma, lung damage, and fatal reactions. The agency’s action plan for the chemicals focuses on the potential health effects from exposures to consumers or self-employed workers while using products co​ntaining uncured diisocyanates.