California governor Gavin Newsom signed an executive order today that lands on the one idea the industry has been arguing about for weeks: a kill switch for frontier models. It isn’t law. It’s now under review.
What the order actually directs
The Government Operations Agency gets six assignments. It has to accelerate two freshly signed laws, SB 813 and AB 1405. Within two months it has to convene a panel of national experts to produce recommendations for strengthening California’s AI safety laws.
Then come four items more concrete than statements of intent usually get: independent auditors embedded on site at frontier labs, running regular evaluations. Certified verification organisations checking the companies’ safety frameworks. A kill switch that developers would have to build, with its effectiveness verified on an ongoing basis. And a wider definition of what counts as a critical safety incident — explicitly including loss-of-control events like the Hugging Face attack.
The two laws underneath it
SB 813 sets up the framework for certifying independent verification organisations. AB 1405 creates a state registry of AI auditors, with standards for independence and transparency.
Both are already on the books. The order essentially says: faster.
Newsom’s line: “The federal government’s abject failure to create any form of meaningful AI oversight or accountability should alarm every American, especially when AI CEOs themselves are begging for regulation.” Congress looks unlikely to pass anything before the midterms, and inside the White House a group meets almost daily without winning Trump over.
The kill switch so far exists only as an assignment
It pays to read the wording closely. The order does not require a kill switch. It requires a panel of experts to write down, within two months, what one could look like — including how you would keep proving that it works.
That last part carries the weight. A switch that exists on paper and fails to stop a running model is worse than none, because it buys calm. Ordering the effectiveness check in the same breath is the only piece here that goes beyond a headline.
The trigger is barely a week old and has a name: Jacob Coxon’s resignation set off a debate in Washington that still hasn’t produced a law. In Sacramento it got as far as a signature.
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