The Public Health Alliance of Southern California (Public Health Alliance) 2024 Policy Platform outlines important and timely regional, state, and federal policy opportunities that can create transformative changes in our communities. The platform builds off of the 2023 Policy Platform and identifies new and emerging polices that have arisen in the past year, as well as new legislation and budget proposals for the 2024 session. This includes increasing resources and investments in local health jurisdictions; elevating health equity, prevention, and upstream Social Drivers of Health (SDOH) approaches across sectors; and other priorities that are aligned with our Strategic Plan. We will use our resources to both accelerate paradigm shifts in public health practice, and mobilize power for healthier, sustainable and just communities. Together as a regional coalition, the Public Health Alliance aims to establish a legacy of enduring health equity across Southern California. The Strategic Plan identifies key strategies that work in concert to achieve the vision of vibrant and activated communities achieving health, justice, and opportunities for all. Policy opportunities are organized according to how they will work to advance the goals laid out in the strategic plan and aligned with the Healthy Places Index domain areas that contribute most to Life Expectancy at Birth (LEB). Unless specified, all non-legislative items include engagement at the local, state and/ or federal level, as appropriate. The Public Health Alliance Charter also allows us to take actions on policy items supported by the County Health Executives Association of California (CHEAC) and the Health Officers Association of California (HOAC)/California Conference of Local Health Officers (CCLHO) without prior Leadership Council approval. Policy opportunities closely aligned with the Public Health Alliance strategic plan are included in the platform.