artificial intelligence service; disclosures; requirements
HB 2311 requires AI chat services (like conversational chatbots) to clearly disclose to minors they are interacting with artificial intelligence, using a visible warning at the start of each session and every three hours. It bans AI from generating sexual content for minors, pretending to be human (e.g., claiming sentience or romantic interest), or using unpredictable rewards to increase engagement. Service providers must offer privacy tools for minors under 13 and their parents, and implement suicide crisis response protocols. Violations could result in fines up to $500,000 per company, enforced by Arizona’s Attorney General. The law takes effect in 2027.
Bill status
vetoed
4 of 5 stages cleared
Introduction
Jan 2026
Committee Review
Mar 2026
House Passage
Jun 2026
Senate Passage
Jun 2026
Vetoed
Jun 2026
Introduced Jan 15, 2026
Vetoed Jun 19, 2026
Maddy AI version diff · 2 comparisons
What changed between versions
Introduced Version
→
House Engrossed Version (02/24/2026)
·
3 edits
·
Jun 11, 2026
MINOR
The bill was converted from an introduced version to a House Engrossed version, which involves standard formatting updates and the addition of specific exclusions for certain AI use cases. The most significant substantive change is the expansion of the definition of 'Conversational AI service' to explicitly exclude tools used for internal business purposes and those strictly for customer service or transactional assistance. This change narrows the bill's regulatory scope by ensuring that standard business support tools are not subject to the new disclosure and safety requirements.
Scope change
The scope of the bill was narrowed by adding exemptions for AI services used solely for internal business purposes and those strictly for customer service or transactional assistance.
DEFINITION
The definition of 'Conversational AI service' was modified to add two new exclusions: services used solely for internal business purposes and services strictly for customer service or transactional assistance.
TECHNICAL
The document header and title were updated from 'Introduced Version' to 'House Engrossed Version', and the bill title was changed from 'HB 2311' to 'HOUSE BILL 2311'.
Minor formatting adjustments were made to the chapter and article titles, splitting them across multiple lines for the engrossed version.
Floor votes · Senate Jun 9, 2026 · House Feb 24, 2026
How they voted
28–1
Passed · 1 other
Total votes 30
Jun 9, 2026
D
Democratic13
100% Yea
R
Republican17
88% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
18
Key actions
10
Committee
1
Amendments
4
Jun 19, 2026
Vetoed
Vetoed by Governor
executive
Jun 12, 2026
Lower · Passed
PASSED
lower
Jun 11, 2026
Upper · Passed
PASSED
upper
Jun 11, 2026
Upper · Passed
DPA
upper
Jun 10, 2026
Upper · Passed
PASSED
upper
Jun 9, 2026
Upper · Passed
PASSED
upper
Jun 9, 2026
Upper · Passed
DPA
upper
Mar 17, 2026
Upper · Passed
DP
upper
Feb 24, 2026
Lower · Passed
PASSED
lower
Feb 23, 2026
Lower · Passed
DPA
lower
Feb 12, 2026
Lower · Passed
DPA
lower
1 primary · 0 co-sponsors
Sponsors
Role
Legislator
Party
State
District
P
Tony Rivero
RRepublican
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