A 2018 Connecticut law required each state agency to designate an agency data officer to manage high-value data sets and coordinate data-related activities with the state Chief Data Officer. The Chief Data Officer, along with individual agency data officers, is required to biannually update the state data plan, which covers open data and creates data standards for agencies. The plan also contains 11 principles and accompanying practices that all agencies should adopt to improve their management, use, sharing, and analysis of data. In addition, a 2019 law required a report on the legal issues surrounding interagency data sharing. Based on analysis of 17 state agencies and 224 data-sharing agreements, the report recommends: 1) establishing a coordinated governance structure for cross-agency data sharing, and 2) implementing cross-agency data-sharing agreements that are more flexible and durable. Building on this report, Connecticut released a Data-Sharing Playbook in 2020 to help agencies share data safely, securely, and ethically. Connecticut also expanded the coverage of the state longitudinal data system, P20 WIN, in 2021.