On May 23, 2019, the California Air Resources Board (CARB or Board) approved the Community Air Protection Incentives 2019 Guidelines which contain criteria and eligibility for Community Air Protection incentives supporting Assembly Bill 617 (Chapter 136, Statutes of 2017). In Board Resolution 19-12, the Board delegated authority to the Executive Officer to modify the Guidelines as necessary, and directed that staff provide regular progress updates to members of the Board. This memo includes the most recent air district progress reported to CARB during the May 2021 reporting period.