This week, EPA finalized a rule to ban some uses of CTC that have already ceased and establish robust workplace protections, including a Workplace Chemical Protection Program (WCPP), including an inhalation exposure concentration limit, direct dermal contact controls, and related workplace exposure
controls, and prescriptive controls, for uses not prohibited to address the unreasonable risk to human health.
The final rule closes the door on discontinued uses of CTC that EPA found present unreasonable risk, like for metal recovery and as an additive in fuel and plastic components used in the automotive industry. For most uses that continue, the rule requires measures to ensure workers are protected. Some uses prohibited by the proposed rule will be allowed to continue under the final rule, because public comments and supporting information demonstrated both that the uses were ongoing and that the workplace protections could be implemented. Uses of CTC allowed to continue under the Workplace Chemical Protection Program (which includes inhalation exposure limits and dermal protections) include: