California Seeks EPA Rule Defining All Nanomaterials As 'New' Chemicals

California state regulators, in comments on EPA's proposed Toxic Substances Control Act (TSCA) data collection rule for nanoscale materials, are urging the agency to define all nanomaterials as new chemicals, arguing new reporting requirements are insufficient to protect the public though producers are seeking exemptions from the reporting proposal. EPA is taking comment through Aug. 5 on a proposed TSCA section 8(a) nano reporting and record-keeping rule, which the American Chemistry Council has said the agency should revise and re-propose...