Under the Toxic Substances Control Act (TSCA) and related implementing regulations, the Environmental Protection Agency (EPA) proposed on July 24 to designate acetaldehyde (CASRN 75-07-0), acrylonitrile (CASRN 107-13-1), benzenamine (CASRN 62-53-3), vinyl chloride (CASRN 75-01-4), and 4,4’-methylene bis(2-chloroaniline) (MBOCA) (CASRN 101-14-4) as High-Priority Substances for risk evaluation. EPA is providing a 90-day comment period, during which interested persons may submit comments on the proposed designations of these chemicals as High-Priority Substances for risk evaluation.
