The Delaware Hazardous Substance Cleanup Act (HSCA) provides funding to clean up contaminated sites and environmental emergencies in Delaware. It is funded by a tax on petroleum products. HSCA funds the cleanup of leaking underground storage tanks, brownfields redevelopment projects, and serves as a match for federal Superfund cleanups. It also responds to over 200 hazardous material emergencies annually. The program aims to promote efficient cleanups and redevelopment through reforms like value stream mapping and a revised brownfields funding policy that prioritizes sustainable and affordable housing projects.