SB 1428 Arizona Senate · 57th Legislature - Second Regular Session

board of supervisors; membership

SB 1428 adjusts Arizona county board of supervisors membership based on population thresholds. Counties with populations under 175,000 typically have three members, while larger counties have five, seven, or nine members. It allows counties between 100,000-150,000 residents to vote via petition (requiring 10% of prior presidential election voters) to switch between 3- or 5-member boards, and counties with 150,000-175,000 residents must hold a vote on expanding to five members after population estimates are released. The bill also requires redistricting to maintain population equality within 10% across districts.
Bill status signed all 5 stages cleared
Introduction
Jan 2026
Committee Review
Feb 2026
Senate Passage
Feb 2026
House Passage
Jun 2026
Signed into Law
Jun 2026
Introduced Jan 28, 2026 Signed Jun 22, 2026
Maddy AI version diff · 3 comparisons

What changed between versions

Senate Engrossed Version (02/26/2026) Chaptered Version · 6 edits
MODERATE
The bill completely replaced the original text regarding county board of supervisor membership rules with an entirely new section focused on workers' compensation insurance. The new law requires insurers issuing 'zero estimated exposure' policies to include specific attestation statements and directs users to a public database for verification, aiming to increase transparency for small employers with no employees.
Scope change
The bill's scope shifted entirely from governing the number of members on county boards of supervisors to regulating workers' compensation insurance policies for employers with zero estimated exposure.
SCOPE

Removed all provisions defining the number of supervisors based on county population and election procedures for changing board sizes.

REQUIREMENT

Added a requirement for zero-exposure insurance policies to include a signed attestation statement from the applicant confirming they have no employees.

Added a requirement for construction employers with zero-exposure policies to provide copies of the policy and written notice to all direct contractors.

Added a requirement for certificates of insurance to include a specific statement directing users to a public database (ewccv.com) to verify policy status.

DEFINITION

Defined 'Zero estimated exposure policy' as an insurance policy obtained by an employer reporting a total estimated exposure of zero.

TIMELINE

Established that the new workers' compensation requirements apply to policies entered into or prepared on or after July 1, 2027.

Floor votes · Senate Jun 12, 2026 · House Jun 12, 2026

How they voted

290
Passed · 1 other
Total votes 30
Jun 12, 2026
D Democratic13
13 Yea
100% Yea
R Republican17
16 Yea 1
94% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
15
Key actions
7
Committee
1
Amendments
2
Jun 22, 2026
Signed into law
Signed by Governor
executive
Jun 12, 2026
Lower · Passed
PASSED
lower
Jun 11, 2026
Lower · Passed
DPA
lower
Mar 31, 2026
Lower · Passed
DPA/SE
lower
Feb 26, 2026
Upper · Passed
PASSED
upper
Feb 26, 2026
Upper · Passed
DP
upper
Feb 18, 2026
Upper · Passed
DP
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of J.D. Mesnard
J.D. Mesnard
RRepublican
AZ
13