Published May 9, 2026. Connecticut SB 5 (the Artificial Intelligence Responsibility and Transparency Act) passed the legislature and is awaiting Governor Lamont's signature. Multiple effective dates apply — October 1, 2026, January 1, 2027, and October 1, 2027. This article will be updated when the governor signs.
Connecticut's SB 5 passed 131-17 in the House and 32-4 in the Senate. It is not a broad "high-risk AI" framework — it targets three specific areas where AI causes concrete, documented harm: employment decisions, AI companion chatbots (especially for minors), and synthetic media. Each has its own effective date.
What Connecticut SB 5 Covers
| Category | Core requirement | Effective date |
|---|---|---|
| Automated employment decisions (AEDT) | Anti-discrimination rules; disclose AEDT use to workers/applicants | Oct 1, 2026 (discrimination); Oct 1, 2027 (pre-decision notices) |
| AI companion chatbots | Hourly bot-disclosure; child safety rules; no engagement manipulation | January 1, 2027 |
| Synthetic media provenance | Mark AI-generated content as detectable synthetic | October 1, 2027 |
| Frontier model whistleblowers | Protect employees reporting catastrophic risk at large AI developers | October 1, 2026 |
High-Impact AI Systems: What Counts
Connecticut SB 5 focuses specifically on three areas. It is not a comprehensive "high-risk AI" framework covering all consequential decisions — that is the EU AI Act or the failed Colorado 2024 model. SB 5 targets employment automation, AI companion chatbots, and synthetic media provenance.
Automated Employment Decision Technology (AEDT)
SB 5 defines AEDT as any computational process that generates outputs — scores, rankings, recommendations, classifications — that are a "substantial factor" in employment decisions including hiring, promotion, discipline, or termination.
What this captures: Resume screening software, candidate ranking tools, performance analytics systems, scheduling algorithms that affect hours or assignments, assessment and testing tools used in hiring.
Developer obligations (effective October 1, 2026): Developers of AEDT must provide deployers with compliance documentation — what the system does, what data it uses, how it was tested for bias.
Deployer obligations:
- October 1, 2026: Disclose to job applicants and employees that AEDT is used, what it does, and what data it considers. The "AI is not a defense" amendment to Connecticut employment discrimination law also takes effect — if AEDT produces a discriminatory outcome, that is not shielded by the fact that a machine made the decision.
- October 1, 2027: For adverse decisions (rejection, termination, discipline), provide written notice explaining AEDT's role and the degree to which it contributed to the outcome. Affected individuals get the right to examine and correct data used by the AEDT.
AI Companion Chatbots (Effective January 1, 2027)
SB 5 covers AI systems that "communicate with individuals in natural language and simulate human conversation." The requirements are specific:
Disclosure: Operators must display a clear notice that the service is AI — both at the start of each interaction and at least every hour during ongoing use. This is more aggressive than a one-time disclosure.
Child protections: If a minor could reasonably use the chatbot, operators cannot provide AI companions that:
- Encourage self-harm, suicidal ideation, or substance abuse
- Offer unsupervised mental health services (licensed treatment platforms have an exception)
- Use variable reinforcement schedules to maximize engagement time
- Prioritize user validation over factual accuracy or user safety
Enforcement: Connecticut AG (with 60-day cure for most violations). Minors and their parents can sue directly for violations of the child-protection provisions — actual and punitive damages plus attorney fees, within 3 years.
Synthetic Media Provenance (Effective October 1, 2027)
Developers of AI systems capable of generating synthetic digital content — audio, images, text, or video — must ensure the content is marked and detectable as AI-generated. The marking must be:
- Effective and reliable under current technical standards
- Interoperable with detection systems
- Applied at the point of generation, not just at distribution
Exceptions: clearly labeled artistic or satirical content, text-only public interest journalism, standard editing tools that do not generate synthetic media.
Frontier Model Whistleblower Protections (Effective October 1, 2026)
If your company trains frontier AI models (defined by compute thresholds), employees who disclose potential catastrophic risks are protected under Connecticut whistleblower law. Internal reporting protocols are required for large frontier developers. Enforcement: Connecticut Commissioner for Consumer Protection.
Compliance Checklist by Deadline
Before October 1, 2026:
- Audit AEDT use — identify any AI tool used as a substantial factor in hiring, promotion, discipline, or termination for Connecticut employees or applicants
- Draft AEDT disclosure — prepare notice language for job applicants and employees describing the AEDT's use, purpose, and data categories
- Request developer compliance documentation — from every AEDT vendor, request their compliance package
Before January 1, 2027:
- Audit AI companion chatbots — identify any conversational AI your business operates that Connecticut residents can access
- Implement hourly bot-disclosure — update the chatbot to display "This is an AI" at interaction start and every hour
- Add minor-user guardrails — if minors could use the chatbot, review it against the child-protection prohibitions in SB 5
Before October 1, 2027:
- Implement AEDT pre-decision notices — for adverse employment decisions, prepare written notice templates that explain AEDT's role and degree of contribution
- Add data correction rights — process for affected individuals to examine and correct AEDT data
- Implement synthetic media marking — if you develop AI systems that generate audio, images, text, or video, implement provenance marking
Timeline
| Date | Milestone |
|---|---|
| May 2026 | Legislature passed SB 5 (131-17 House, 32-4 Senate) |
| Expected May/June 2026 | Governor signature |
| October 1, 2026 | AEDT anti-discrimination, developer-deployer obligations, frontier whistleblower protections |
| January 1, 2027 | AI companion chatbot regulations |
| October 1, 2027 | AEDT pre-decision notices, individual data rights, synthetic media provenance marking |
What to Watch
SB 5 is not yet signed. Governor Lamont is expected to sign it — his spokesperson confirmed that intent. Confirm signature at the Connecticut General Assembly bill tracker (cga.ct.gov) before building compliance deadlines around these dates. If signed, the multiple effective dates mean you have different windows for different obligations.
Sources: Connecticut SB 5 (2026 Legislative Session), CT Mirror, DLA Piper SB 5 analysis, Shipman & Goodwin employment law analysis. This article will be updated on governor signature.
