solar radiation management; prohibition; enforcement.
SB 1278 prohibits anyone in Arizona from intentionally injecting, releasing, or dispensing materials for solar radiation management (technologies that reflect sunlight to cool the planet) within state borders. It also bans public funding - such as grants from cities, universities, or other entities receiving public money - for developing these technologies. The law allows Arizona residents to file complaints with the Attorney General about violations, who must investigate and can sue violators in court for injunctive relief and fees. This bill directly affects individuals, companies, and public institutions conducting or funding solar radiation management activities in Arizona.
Bill status
passed
3 of 5 stages cleared
Introduction
Jan 2026
Committee Review
Feb 2026
Senate Passage
Mar 2026
House Passage
Governor
Introduced Jan 27, 2026
Last action Mar 3, 2026
Maddy AI version diff · 1 comparison
What changed between versions
Introduced Version
→
Senate Engrossed Version (02/25/2026)
·
3 edits
·
Mar 3, 2026
MINOR
The bill text was reformatted from a standard introduced version to a clean, official Senate engrossed version. While the layout, headers, and page numbering were significantly updated, the actual legal content, prohibitions, and enforcement mechanisms remain identical.
TECHNICAL
The document structure was updated to reflect the official 'Senate Engrossed' status, replacing the 'Introduced' header and removing internal page markers.
Formatting inconsistencies were corrected, including standardizing capitalization in the title and section headers.
The text was cleaned of draft annotations (such as 'START_STATUTE' and 'END_STATUTE') and extraneous spacing to match final legislative formatting standards.
Floor votes
How they voted
This bill passed the Senate by voice vote (no roll call recorded).
Full legislative history
Actions timeline
Total actions
7
Key actions
4
Committee
1
Mar 3, 2026
Upper · Passed
PASSED
upper
Feb 25, 2026
Upper · Passed
PASSED
upper
Feb 25, 2026
Upper · Passed
DP
upper
Feb 3, 2026
Upper · Passed
DP
upper
1 primary · 0 co-sponsors
Sponsors
Role
Legislator
Party
State
District
P
Dave Farnsworth
RRepublican
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