Analysis
Robotaxi oversight in the US split into two competing tracks this weekend. Rep. Kevin Mullin (D-Calif.) introduced legislation directing federal regulators to set minimum national safety standards for autonomous vehicle operators, telling reporters "we have seen disturbing, and frankly, an unacceptable number of incidents where autonomous vehicles inadvertently interfere with emergency responders." Within days, San Francisco Mayor Daniel Lurie asked California regulators to strengthen the state's own AV rules -- a request that arrived almost two weeks after Waymo vehicles went immobile in heavy July 4 traffic, ran out of power mid-route, and blocked several key downtown streets.
The Waymo incident wasn't an isolated glitch. It followed a string of scrutiny that has built since spring, including a federal investigation into Waymo robotaxi crashes and possible traffic violations, and a separate NHTSA push demanding robotaxi operators show "solutions" for how their vehicles interact with police, fire and ambulance crews after a run of interference incidents nationwide. Mullin's bill is effectively Congress's answer to a year of state and local officials each writing their own patchwork response to the same underlying problem.
The regulatory picture isn't uniformly adversarial, though. Zoox -- Amazon's robotaxi unit -- won NHTSA's first-ever commercial exemption for a purpose-built robotaxi with no steering wheel or pedals, clearing the way to operate roughly 2,500 vehicles in Las Vegas. That approval shows federal regulators can move quickly and favorably when a design meets their bar, even as the same agency presses Waymo and others over safety incidents. Tesla, meanwhile, continues expanding its own robotaxi service under existing state frameworks rather than waiting on a federal standard -- a third approach entirely.
“Mullin's bill is effectively Congress's answer to a year of state and local officials each writing their own patchwork response to the same underlying problem.”
The stakes extend past US borders. London is shaping up as the next robotaxi battleground: Baidu has started testing there in partnership with Lyft and Freenow, aiming to open public rides in 2027; Waymo has been running tests with human safety operators in London since April; and Uber, together with self-driving partner Wayve, has announced its own London launch plans for later this year. A fragmented, state-by-state US regulatory environment risks handing first-mover advantage abroad to operators who can move faster where the rules are already clear.
For AV and robotics founders, the practical takeaway is that "getting federal approval" is no longer a finish line, if it ever was -- city halls and state agencies can still impose operational constraints that make federal clearance close to meaningless in a given metro. Investors underwriting AV, robotics, and adjacent infrastructure bets need to model a 50-state-plus-major-cities compliance function into any go-to-market plan, not a single Washington lobbying line item.
The bear case is that a genuinely fragmented regulatory map slows the entire category down, favoring incumbents with the balance sheets to run compliance teams in dozens of jurisdictions simultaneously -- squeezing out smaller AV startups that can't afford the same overhead. There's also a real possibility Mullin's bill stalls in a divided Congress the way most federal AV legislation has for the better part of a decade, leaving the current patchwork as the status quo indefinitely.
What to watch next: whether Mullin's bill gets a committee hearing or dies in the same graveyard as prior federal AV safety proposals, how California responds to Lurie's request, whether NHTSA extends Zoox-style purpose-built exemptions to other operators, and how the London robotaxi race between Waymo, Baidu, and Uber/Wayve plays out as a preview of what happens when regulators actually align around one clear framework.
