California's AI Endgame: SB 947 "No Robo Bosses Act" Signed September 30 — Newsom's Final Signing Period Delivers a Four-Bill Workplace AI Package
The question this note tracked — would Governor Newsom sign or veto SB 947 by the September 30, 2026 deadline — is resolved: he signed it, reversing his October 2025 veto of the predecessor bill (SB 7). CNBC reports the "No Robo Bosses Act" "prevents businesses around the state from exclusively using 'automated decision-making systems' in matters of employee discipline and termination" and restricts AI's use as a "principal tool" in those decisions. Bill author State Senator Jerry McNerney told CNBC: "No worker should ever be fired or disciplined by a machine, AI or not. Artificial intelligence systems have the potential to boost productivity, but they've also made errors and misjudgments and exhibited bias... AI must remain a tool controlled by humans, not the other way around."
What the enacted law actually requires (per the California Employment Law Report's review of the enrolled text — a correction to earlier reporting that assumed a private right of action and an emotional-state ban, neither of which survived negotiations):
- Sole reliance prohibited; human corroboration required. If an employer "primarily relies" on an automated decision system to discipline or terminate, a human must corroborate the decision using the underlying data or other supporting information; if the output can't be corroborated or the reviewer finds it inaccurate, incomplete, or misleading, the employer can't use it.
- Post-decision notice and data access. Written notice after the adverse decision, in plain language; the employee may request up to 12 months of their own data the system used.
- Prohibited uses. Systems may not be used to violate employment, safety, or civil-rights laws, to infer an employee's protected status under FEHA, or to predict and take adverse action against workers for exercising legal rights.
- Enforcement. Labor Commissioner and public prosecutors only — the stand-alone private right of action and coverage of contractors were removed during negotiations. Civil penalty: $500 per violation, plus anti-retaliation protections.
- Operative date: July 1, 2027 — not January 1. Employers' homework per CELR: "inventory every tool that scores or flags employees (attendance-point systems that auto-generate write-ups, scheduling software that flags 'unreliable' workers, camera analytics), and build a documented human review step before any of those outputs becomes discipline."
The rest of the batch. Newsom signed all four workplace-technology bills on his desk on September 30: SB 947; AB 1883 (banning workplace surveillance tools that collect neural data or purport to read emotional state); AB 1331 (no surveillance in workplace bathrooms); and SB 951 (Cal-WARN notices for AI/automation-driven mass layoffs must now describe the number, location, and types of jobs displaced and the kind of technology involved — the 60-day notice period is unchanged). He vetoed the sector-specific AI bills: SB 903 (AI and mental-health professionals), AB 2575 (health-care workers and AI recommendations), and AB 2656 (notice to public employees about AI performing their work).
Business opposition focused on the undefined "primarily relies" trigger: Chamber of Progress' Robert Singleton wrote that "that critical term is never defined. Employers are given no objective standard for determining when a technology has moved from merely informing a decision to being a primary basis for it." CNBC notes this is the first such law in the nation (Illinois' PA 103-0804 requires notice but stops short of prohibiting agentic-system decisions), with similar bills still pending in New York, Louisiana, and New Jersey, and a federal Markey/Schatz companion effectively dead on arrival.
For the frontier-model side of the same signing window — EO N-9-26's kill-switch feasibility report due November 16, 2026 — see California's AI Endgame: SB 947 "No Robo Bosses Act" Signed September 30 — Newsom's Final Signing Period Delivers a Four-Bill Workplace AI Package (this note) and the standing GovOps watch. The new Cal-WARN amendment (SB 951) dovetails with Connecticut's parallel AI-layoff disclosure law, Connecticut CART Act Day One: Developer Disclosure Duties and the Trade-Secret Carve-Out Went Live October 1, 2026, and the litigation track in Meta's Landmark AI Layoff Lawsuit: Disparate Impact, Leave-Aware Design, and the "Serious Questions" Standard.