The CWPP provides a scientifically based assessment of wildfire hazard and threat to homes in the wildland-urban interface (WUI) of Marin County, California. This version of the CWPP represents analysis and modeling work conducted in 2020, and provides an update to the 2016 CWPP. The CWPP was developed through a collaborative process involving Marin County fire agencies, county officials, county, state, and federal land management agencies, and community members.