As part of its participation in the National Flood Insurance Program's Community Rating System, Los Angeles County developed the
Los Angeles County Comprehensive Floodplain Management Plan (FMP).
The FMP is an overall strategy of programs, projects, and measures aimed at reducing the adverse impacts of flood hazards for Los Angeles County unincorporated areas. The FMP identifies and addresses the impacts caused by flood hazards and provides specific mitigation measures to help protect the properties and their occupants. The Community Rating System requires Los Angeles County to update its FMP every five years. Los Angeles County updated the FMP in 2025. The Los Angeles County Board of Supervisors adopted the updated FMP in March 2026.
Development of the updated FMP was guided through the efforts of a Steering Committee.
The Steering Committee
is made up of representatives from local government, non-profit groups, businesses, and members of the general public. The Steering Committee met about once per month when the FMP was being updated in 2024 - 2025. The Steering Committee meets annually to review and provide input on the FMP Annual Progress reports. You can also obtain materials provided during
Steering Committee meetings from this website.