The proposed bill would amend current statutes regarding certificates of assured water supply by introducing new requirements and processes for the Arizona Department of Water Resources (ADWR). Specifically, it mandates that ADWR review applications for certificates submitted for land in the Phoenix active management area between January 26, 2021, and August 31, 2023, provided certain conditions are met, including the absence of a previously issued certificate for the applicant. The bill also requires municipal providers to submit a notice of intent to serve, detailing their obligations regarding excess groundwater and long-term storage credits, which must be calculated and reported annually.

Additionally, the bill stipulates that certificates issued under these new provisions will relate back to calendar year 2023 for the purposes of assured water supply designation applications. It includes provisions for the review of pending or withdrawn applications and establishes a timeline for ADWR to notify eligible applicants. The bill also repeals these new requirements after December 31, 2028, and emphasizes that all remaining requirements for certificates of assured water supply will still apply.