The bill amends RCW 36.70A.130 to improve the review and revision process for comprehensive land use plans and development regulations in Washington State, with a particular focus on critical aquifer recharge areas. It introduces criteria allowing cities and towns to opt out of full reviews based on specific population and growth rate thresholds. Additionally, any revisions to urban growth areas are restricted from increasing their total surface area, ensuring that critical aquifer recharge areas are preserved in accordance with county regulations. The bill also emphasizes public participation in the planning process and sets specific deadlines for compliance.

Key provisions require counties and cities to regularly review their comprehensive plans and development regulations, with deadlines tailored to different regions. The bill establishes a mechanism for financial assistance based on compliance with these deadlines and progress in protecting critical areas. It mandates the development of a work plan for implementing necessary regulations and requires completion of this work within two years of submitting an implementation progress report. Furthermore, jurisdictions must review and potentially revise their comprehensive plans to include a climate change and resiliency element by December 31, 2024, and update their transportation elements accordingly, contingent on the appropriation of funds by December 31, 2027. Overall, the bill aims to promote sustainable urban growth while integrating climate considerations into local planning efforts.