SB 1200 Arizona Senate · 57th Legislature - Second Regular Session

assured water supply; certificate; model.

SB 1200 allows Arizona's Department of Water Resources to review and issue certificates of assured water supply for land in the Phoenix active management area. It specifically applies to applications submitted between January 2021 and August 2023 that were still pending as of the bill's effective date. The bill requires municipal water providers to calculate annual excess groundwater use and assign 25% of that amount as long-term storage credits to the Central Arizona Groundwater Replenishment District. This credit system reduces the providers' annual replenishment tax burden and allows landowners to retroactively apply these credits toward future water supply designations. The bill expires December 31, 2028.

Bill status passed 3 of 5 stages cleared

Introduction

Jan 2026

Committee Review

Feb 2026

Senate Passage

Feb 2026

House Passage

Governor

Introduced Jan 20, 2026 Last action Jun 9, 2026

Maddy AI version diff · 2 comparisons

What changed between versions

House Engrossed Version → Senate Engrossed Version (02/26/2026) · 5 edits · Feb 26, 2026

MODERATE

The bill was completely rewritten to replace a prohibition on filling water bodies for landscaping with a new program granting 'certificates of assured water supply.' This shift allows municipalities in the Phoenix area to legally use excess groundwater for landscape features, provided they transfer long-term storage credits to a regional groundwater replenishment district. The new law also includes a sunset clause, repealing itself after December 31, 2028.

Scope change

The bill's scope changed from a general prohibition on filling water bodies to a specific, time-limited authorization program exclusively for the Phoenix active management area.

REQUIREMENT

Removed the prohibition against using water to fill or refill bodies of water for landscape or recreational purposes, which previously banned such activities in active management areas.

Added a new requirement that municipal providers must transfer long-term storage credits to the Central Arizona Groundwater Replenishment District as a condition for receiving the certificate.

ELIGIBILITY

Added a new eligibility requirement limiting the certificate program to land located specifically in the Phoenix active management area.

TIMELINE

Added a sunset provision that repeals the entire section and the new certificate program effective December 31, 2028.

DEFINITION

Added a 'look-back' provision stating that certificates issued under this new program are treated as if they were issued in 2023 for the purpose of calculating base water supply.

Floor votes

How they voted

This bill passed the Senate by voice vote (no roll call recorded).

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Amendments

Jun 9, 2026

Lower · Passed

DPA

lower

Mar 17, 2026

Lower · Passed

DPA/SE

lower

Feb 26, 2026

Upper · Passed

PASSED

upper

Feb 26, 2026

Upper · Passed

upper

Feb 17, 2026

Upper · Passed

upper

1 primary · 0 co-sponsors