SB 5 (Public Act 26-15), An Act Concerning Online Safety
The one-paragraph answer
The Connecticut AI Act (SB 5, enacted as Public Act 26-15, formally titled An Act Concerning Online Safety and informally the CART Act) was signed by Governor Ned Lamont on May 27, 2026. Its provisions phase in on staggered dates from October 1, 2026 through January 1, 2028. It is one of the broadest state AI laws in force. It covers employment AI disclosure, whistleblower protections for workers at frontier AI developers, synthetic content provenance watermarking, AI companion rules for minors, subscription-based AI service disclosures, and anti-discrimination amendments that prevent automated decision-making from being used as a defense to discrimination claims. Enforcement is by the Connecticut Attorney General only.
Connecticut is a financial-services and insurance hub. Hartford has one of the largest concentrations of insurance companies in the country. Fairfield County is home to major hedge funds and asset managers. When Connecticut passes a broad AI law that touches employment, discrimination, and consumer disclosure, it hits industries that already sit inside layered federal regulation. The Connecticut AI Act takes effect October 1, 2026, which is a short runway to build compliance for the employment disclosure and anti-discrimination provisions alone.
Deployers using AI as a substantial factor in hiring, promotion, discipline, or discharge decisions must notify employees and applicants that AI was used. This is a broader reach than a bias audit; it captures any material AI use in employment decisions in Connecticut.
Workers at developers of frontier AI models (models trained with more than 10 to the 26th floating-point operations) receive statutory whistleblower protections when reporting safety or compliance concerns. First state law with this specific scope.
AI-generated audio, video, and images must carry provenance markers. Applies to platforms and to producers of synthetic content distributed in Connecticut.
AI systems marketed or reasonably foreseeable to be used by minors as companions (chatbot friends, emotional AI, virtual companions) face specific restrictions and disclosure obligations designed to protect youth mental health.
Connecticut's civil rights statutes are amended so that automated decision-making cannot be used as a defense to a discrimination claim. This forecloses the "the algorithm did it" argument in Connecticut discrimination litigation.
Subscription AI products must provide clear disclosures about capabilities, limitations, data use, and cancellation.
The Connecticut Attorney General is the sole enforcer. There is no private right of action. A 60-day right to cure applies through December 31, 2027, giving deployers a limited grace period to correct violations before enforcement action. Penalties fall under the Connecticut Unfair Trade Practices Act (CUTPA), which includes civil penalties and injunctive relief.
The Connecticut AI Act operates alongside the Colorado AI Act for multi-state deployers, alongside EEOC enforcement under Title VII for employment claims, and alongside HIPAA for health-adjacent AI. Alignment to NIST AI RMF or ISO/IEC 42001 supports (but does not automatically satisfy) reasonable-care defenses.
Companies with Connecticut operations, Connecticut employees, or Connecticut consumers face compliance obligations starting October 1, 2026. The employment disclosure and anti-discrimination provisions are the most operationally demanding elements, and they apply to any employer using AI as a substantial factor in employment decisions in Connecticut. The frontier developer whistleblower protection is narrower but establishes a template other states are likely to follow.
The academic literature on Connecticut AI Act is ahead of most corporate practice, and it is unusually blunt. Two findings are worth putting in front of any executive who thinks this is a compliance formality.
“concerns about their impact on individual and societal wellbeing, particularly due to the lack of transparency and accountability”
That is the gap between having AI and governing it. The second finding is the one that tends to change the room.
“organizational culture and structure impact the effectiveness of responsible AI initiatives in practice”
Neither of these is a fringe position. Both come from peer-reviewed work, and both describe the condition most organisations are actually in when the question about Connecticut AI Act arrives from the board, the buyer, or the regulator.
This is the sequence that works, and it is not the sequence most organisations choose. They start with the framework and work backwards toward reality. Start with reality.
Done in this order, Connecticut AI Act becomes tractable. Done out of order, it becomes a document nobody uses and a control nobody exercises.
Staggered. The Act begins to phase in October 1, 2026, when the subscription-disclosure, frontier whistleblower, provenance and watermarking, and the automated employment decision technology (AEDT) framework provisions take effect. AI companion requirements and the large-frontier internal reporting channel follow January 1, 2027. The AEDT employer disclosure duties apply to systems deployed on or after October 1, 2027. Social media protections for minors take effect January 1, 2028.
Yes, if your AI touches Connecticut employees, applicants, or consumers.
A term of art meaning the AI meaningfully influenced the decision. Not every incidental use triggers disclosure; but any AI that materially shapes hiring, promotion, discipline, or discharge does.
No, but it supports a reasonable-care posture and helps in a cure response.
The employment AI disclosure obligation is addressed in the HR addendum in Volume III of The Operating Discipline for AI Library™. The AI Business Enablement Audit™ includes Connecticut-specific compliance mapping.
The authoritative texts and agency pages behind this summary. We keep this page current, but where a compliance decision turns on exact wording, read the source. Anything concerning Connecticut AI Act that carries legal consequence should be confirmed against the enrolled text or the issuing body, not against a secondary summary, including this one.
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