This tool shares California's Adaptation Planning Guide (APG) 2020, a resource that provides guidance to support regional and local communities in proactively addressing the unavoidable consequences of climate change. Usage of the APG is meant to allow for flexibility in the commitment of time, money, and effort to suit the needs of the community. This tool includes: Planning for Adaptive Communities - presents the basis for climate change adaptation planning and introduces a step-by-step process for local and regional climate vulnerability assessment and adaptation strategy development. All communities seeing climate adaptation planning guidance should start with this document. Defining Local and Regional Impacts - provides a more in-depth understanding of how climate change can affect a community. Seven "impact sectors" are included to support communities conducting a climate vulnerability assessment. Identifying Adaptation Strategies - explores potential adaptation strategies that communities can use to meet adaptation varying needs.