State-Managed Disaster Act of 2026; establish.

HB 1645 establishes the State-Managed Disaster Assistance Program, creating a state-funded trust fund administered by Mississippi's Emergency Management Agency (MEMA) to cover disaster preparedness, response, and recovery costs. The bill directly affects MEMA, local governments, and state agencies by providing a dedicated funding mechanism for disaster assistance when federal aid thresholds increase. Key provisions include setting up the State-Managed Disaster Assistance Trust Fund in the state treasury, requiring annual reports to the Legislature, and allowing MEMA to request funds from the trust for declared emergencies or training. Funds remain in the trust if unspent rather than lapsing into the general fund, ensuring continuity for disaster management needs.