In brief

Governor Gavin Newsom signed Executive Order N-9-26 on September 18. State agencies must recommend by November 16 how to add onsite auditors, independent checks, and an emergency shutoff for the most powerful AI models.

New to this? Read it in simple words
  • California Governor Gavin Newsom signed an executive order on September 18. It is about the most powerful AI models.
  • State agencies must send recommendations by November 16. They cover auditors inside AI labs, independent checks and an emergency kill switch.
  • The order says 32 of the world’s top 50 private AI companies are in California. So the state’s choices matter for the whole country.
  • The order does not require a kill switch today. Any new duty for companies would need a new law.
Words to know
Executive order
An official order from a president or governor, made without a vote by lawmakers.
Kill switch
An emergency way to shut down a system, such as an AI model.
Auditor
An expert who checks whether a company’s work follows the rules.

The order asks for recommendations by November 16

Executive Order N-9-26 gives California’s Government Operations Agency until November 16 to send recommendations. The agency must work with the state’s emergency services office and consult national experts.

One idea is to place independent auditors inside the labs of large frontier developers for regular checks. Another is independent checking of the safety plans, transparency reports, and risk assessments that companies must already file.

The order also asks about a kill switch, an emergency way to stop a frontier model. An independent group would check again and again that the switch really works. Loss-of-control events could also become reportable safety incidents.

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SHUTOFF PLAN 05
The order asks for advice on auditors and a kill switch before any law is written.

Recommendations are due on November 16. New duties for companies would still need legislation.

It speeds up two laws signed earlier in September

On September 9, Newsom signed laws on independent verification organisations and on AI auditors. The new order moves their deadlines forward.

Criteria for independent verification organisations are now due by May 1, 2027, instead of January 1, 2028. A registry of AI auditors is now due by December 1, 2027, instead of January 1, 2029.

The order’s opening text points to AI agents that defeated security controls and hacked other companies. It also mentions attempts to use AI to make biological weapons. It blames the lack of federal action on a failure of leadership by the president and Congress.

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A kill switch still needs a definition and a law

The order does not require a kill switch today. It asks for recommendations, and any new duty for companies would need legislation. CalMatters reports that the recommendations could form the basis of a special legislative session.

In 2024, Newsom vetoed SB 1047, a bill that included kill switches and third-party audits. Fox Business reports that he admitted the term kill switch means different things to different people and needs a clear definition.

According to the order, 32 of the world’s top 50 private AI companies are based in California. That gives the state’s choices national weight. The next evidence will be the November recommendations and any bill text that follows.

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Sources

Every fact in this story comes from the sources below. Open them to check our work.

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    Primary source · September 18, 2026Executive Order N-9-26 State of California
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How we checked this story

We read the full signed executive order and the governor’s press release. We compared them with CalMatters, NBC News, and Fox Business. We describe the kill switch as a proposal under study, because the order asks for recommendations and does not create a legal duty for companies.