HB 2787 Arizona House · 57th Legislature - Second Regular Session

federal nullification; Mexican wolf; reintroduction

HB 2787 prohibits Arizona state agencies, employees, and political subdivisions from using state resources to enforce, administer, or cooperate with the federal Mexican wolf reintroduction program under the Endangered Species Act. It directly affects state government operations by banning state involvement in the wolf program, though it exempts the existing livestock loss program managed by the Livestock Loss Board. The bill does not change federal law but aims to limit state-level support for the program, which the legislature claims has exceeded population goals since 2014 and causes economic harm to ranchers. The bill focuses on state authority over resource use, not altering the federal program itself.
Bill status vetoed 4 of 5 stages cleared
Introduction
Jan 2026
Committee Review
Mar 2026
House Passage
Feb 2026
Senate Passage
Apr 2026
Vetoed
Apr 2026
Introduced Jan 20, 2026 Vetoed Apr 13, 2026
Maddy AI version diff · 1 comparison

What changed between versions

Introduced Version House Engrossed Version (02/26/2026) · 1 edit · Apr 8, 2026
MINOR
The bill text was reformatted from a standard legislative introduction style to a formal 'House Engrossed' version, including the addition of page headers and a specific statute start/end marker. No substantive policy changes, such as new laws, funding amounts, or eligibility criteria, were made to the actual content of the bill.
TECHNICAL

The document structure was updated to include official House Engrossed headers and a specific 'START_STATUTE' and 'END_STATUTE' block around the new section 1-273, replacing the previous introductory text.

Floor votes · House Feb 26, 2026

How they voted

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

Actions timeline

Total actions
15
Key actions
6
Committee
2
Apr 13, 2026
Vetoed
Vetoed by Governor
executive
Apr 8, 2026
Upper · Passed
PASSED
upper
Apr 8, 2026
Upper · Passed
DP
upper
Mar 24, 2026
Upper · Passed
DP
upper
Feb 26, 2026
Lower · Passed
PASSED
lower
Feb 24, 2026
Lower · Passed
DP
lower
Feb 9, 2026
Lower · Passed
DP
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Lupe Diaz
Lupe Diaz
RRepublican
AZ
19