The Department of Defense, through the Washington Headquarters Services, is issuing a Request for Information (RFI) to gather insights on the use of existing chemicals under the Toxic Substances Control Act (TSCA) for its Chemical and Material Risk Management Program (CMRMP). The objective is to assess critical applications of these chemicals within the defense supply chain, focusing on their necessity and availability of alternatives, to enhance readiness and supply chain resilience. This initiative is vital for understanding the implications of regulatory changes on the defense sector and ensuring compliance with environmental standards. Interested parties are encouraged to submit their responses, including detailed information on chemical applications and criticality, to the designated email address by the specified deadline, with further inquiries directed to Kelsey Hendrixson at kelsey.v.hendrixson.civ@mail.mil.