California’s open data policy (2019) promotes data sharing via the California OpenData Portal. In 2022, a new Open Data Handbook aimed to standardize data publishing and foster collaboration. All entities under the Governor’s authority signed the Interagency Data Exchange Agreement (IDEA) in Spring 2021, streamlining legal and secure data exchange through Business Use Case Proposals (BUCPs). Legislation in summer 2021 created the California Cradle-to-Career Data System, with data sharing agreements, governance procedures, and community engagement. CalHHS is developing a Data Exchange Framework (AB 133) to enhance health information exchange, supported by guiding principles and a single data sharing agreement with 1,400+ organizations. The state also launched an integrated data system for homelessness. The Cross-Systems Analytics and Assessment for Learning and Skills Attainment (CAAL-Skills) integrates workforce data across agencies.