The Fisheries Restoration and Irrigation Mitigation Act (FRIMA) (Public Law 106-502) of 2000 was established with the goals of decreasing fish mortality associated with the withdrawal of water for irrigation and other purposes without impairing the continued withdrawal of water for those purposes; and to decrease the incidence of juvenile and adult fish entering water supply systems.

FRIMA is a voluntary fish screening and passage program targeted to Pacific Ocean drainage areas of Idaho, western Montana, Oregon, and Washington. Eligible projects include fish screens, fish passage devices, and related inventories by the States.

Initial proposals should be developed and submitted in coordination with FWS field and regional staff following regional processes.