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San Mateo County Hazard Mitigation Planning Table 2-1. Plan Changes Crosswalk 44 CFR Requirement 2016 Plan Updated Plan Requirement §201.6(b): In order to develop a more comprehensive approach to reducing the effects of natural disasters, the planning process shall include:  An opportunity for the public to comment on the plan during the drafting stage and prior to plan approval.  An opportunity for neighboring communities, local and regional agencies involved in hazard mitigation activities, and agencies that have the authority to regulate development, as well as businesses, academia and other private and non-profit interests to be involved in the planning process; and  Review and incorporation, if appropriate, of existing plans, studies, reports and technical information. The 2016 plan followed an outreach strategy utilizing multiple media developed and approved by the Steering Committee. This strategy involved:  Public participation on an oversight Steering Committee.  Establishment of a plan informational website.  Press releases.  Use of a public information survey Stakeholders were identified and coordinated with throughout the process. A comprehensive review of relevant plans and programs was performed by the planning team. The 2021 plan built upon the success from the 2016 and expanded the outreach strategy to support the equity objectives for the plan update process. These enhancements included:  Establishing the Steering Committee with 50 percent of its members from government agencies and 50 percent from non- government organizations.  Distributing two surveys  Use of multi-lingual surveys  The development of a “StoryMap” to support the plan’s implementation  Contracted support from eight community based organizations to increase survey responses and deliver multi-lingual community presentations in socially vulnerable areas and with hard-to-reach populations  Robust mitigation plan website As with the 2016 plan, the 2021 planning process identified key stakeholders and coordinated with them throughout the process. A comprehensive review of relevant plans and programs was performed by the planning team. §201.6(c)(2): The plan shall include a risk assessment that provides the factual basis for activities proposed in the strategy to reduce losses from identified hazards. Local risk assessments must provide sufficient information to enable the jurisdiction to identify and prioritize appropriate mitigation actions to reduce losses from identified hazards. Part 2 of Volume 1 presents a comprehensive risk assessment for the planning area that looks at eight hazards of concern: dam failure, drought, earthquake, flood, landslide, severe weather, tsunami, and wildfire. This section also includes an aggregate profile of human-caused hazards and climate change. The same methodology, using new, updated data, was deployed for the 2021 plan update. An equity lens factor was established using FEMA’s Social Vulnerability Index to support risk ranking. All hazard profiles were updated with the best available data and science, which in some cases (dam failure) resulted in increased risk for the planning area because of better data. Sea level rise was added as a fully assessed hazard of concern, and the profile on climate change impacts was enhanced. §201.6(c)(2)(i): [The risk assessment shall include a] description of the … location and extent of all natural hazards that can affect the jurisdiction. The plan shall include information on previous occurrences of hazard events and on the probability of future hazard events. Volume 1 presents a comprehensive risk assessment of each hazard of concern. Each hazard was profiled as follows:  Hazard profile, including maps of extent and location, historical occurrences, frequency, severity, and warning time  Secondary hazards  Exposure of people, property, critical facilities, and environment  Vulnerability of people, property, critical facilities, and environment  Future trends in development  Scenarios  Issues The same format, using updated data, was deployed for the 2021 plan update. 2-5