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A person entering a Tesla factory in Lathrop, California, in September 2021. Photo: David Paul Morris/Bloomberg via Getty Images

The National Highway Traffic Safety Administration (NHTSA) questioned Tesla in a letter Wednesday on why the company did not file a recall when it updated the self-driving software for some of its vehicle models last month.

Why it matters: Federal law requires automakers to submit a recall when they issue an "over-the-air" update that mitigates a defect that poses an unreasonable risk to drivers.

The big picture: Tesla updated its Full Self-Driving software in late September so the system could detect flashing emergency vehicle lights in low light conditions and adjust vehicle speed in response.

  • Tesla should have issued a recall "no more than five working days after the manufacturer knew or should have known of the safety defect or noncompliance," NHTSA said.

In a separate letter, the agency questioned why the company allegedly required people to sign non-disclosure agreements in order to participate in beta testing for its Full Self-Driving feature.

  • NHTSA said the agreements "limit the participants from sharing information about [Full Self-Driving] that portrays the feature negatively, or from speaking with certain people about [Full Self-Driving]" and limited its ability to function as a regulator, since it significantly relies on reports from consumers as a source for information.

What's next: The agency ordered Tesla to send it requested information by Nov. 1 or face daily penalties up to a total amount of more than $114 million.

  • Telsa did not immediately comment on the NHTSA letter.

Go deeper: Tesla to move headquarters from California to Texas

Go deeper

Biden: "Being a cop today is one hell of a lot harder than it's ever been"

President Biden speaks during the 40th Annual National Peace Officers Memorial Service at the U.S Capitolon Oct. 16. Photo: Brendan Smialowski/AFP via Getty Images

President Biden speaking at the U.S. Capitol on Saturday honored members of law enforcement who died in the line of duty in 2019 and 2021 and saluted those who are currently serving.

Driving the news: "We expect everything of you, and it's beyond the capacity of anyone to meet the total expectations. Being a cop today is one hell of a lot harder than it's ever been," Biden said.

Updated 4 hours ago - World

Islamic State claims responsibility for deadly bombing in southern Afghanistan

The mosque after the explosion in southern Kandahar province on Oct. 15. Photo: Murteza Khaliqi/Anadolu Agency via Getty Images

The Islamic State group claimed responsibility for a massive blast that tore through a crowded Shiite mosque in the southern Afghan city of Kandahar on Friday, killing at least 47 people and injuring dozens more, AP reports.

Why it matters: Friday's attack was the deadliest to strike Afghanistan since the U.S. withdrew its troops from the region and is the second major attack on a Shiite mosque in a week, underscoring the Taliban's growing security threat from other militant groups.

New wave of strikes will test worker power

Illustration: Sarah Grillo/Axios

Thousands of John Deere workers hit the picket line this week after the union smacked down a new worker contract from the farm and equipment maker.

Why it matters: There’s a wave of worker angst spreading across the country. They wield new power that’s come with a historic worker shortage.