San Mateo County and the cities of Atherton, Belmont, Brisbane, Burlingame, East Palo Alto, Half Moon Bay, Pacifica, and San Bruno are working collaboratively on the Peninsula Resilience Project (PREP) to update Safety Element for each participating jurisdiction. The Safety Element identifies the hazards of concern in a community and includes detailed information and mapping as applicable for each hazard, describes the risks and projected changes over time of each hazard, assesses community climate change vulnerabilities, identifies evacuation-constrained parcels, and presents a set of goals, policies, and action to reduce hazard severity and promote resilience. Hazards included in a Safety Element will vary by community, but they can include wildfire, flooding, earthquakes, landslides, extreme weather, sea level rise, pests and diseases, human health hazards, hazardous materials, and others.

Information collected from the public will be shared between both the Environmental Justice Elements Planning Initiative and PREP project since some of the topics and audiences on both projects will be similar.