This legislation, known as the PFAS Research and Development Reauthorization Act of 2025, aims to prolong the period during which the Environmental Protection Agency (EPA) is authorized to receive appropriations for its research and development efforts concerning per- and polyfluoroalkyl substances (PFAS). Specifically, the bill amends Section 7362(b) of the National Defense Authorization Act for Fiscal Year 2020. This amendment changes the expiration date for the authorization of appropriations from fiscal year 2024 to fiscal year 2030 , thereby extending the funding window for an additional six years. The extension is crucial for supporting ongoing scientific investigation into the environmental and health impacts of PFAS, as well as developing mitigation strategies.