California Bill Would Require Speed Governors on Cars

The legislation would call for speed-limiting technology on cars made and sold in the state that would keep speeds to no more than 10 miles over the posted speed limit.

1 minute read

January 25, 2024, 11:00 AM PST

By Diana Ionescu @aworkoffiction


70 mph speed limit sign with bullet holes on southwestern highway with desert mountains in background.

logoboom / Adobe Stock

A California bill proposed by state senator Scott Wiener could require vehicles sold in California to be equipped with speed governors, a mechanism that limits the vehicle’s top speed.

According to an article by Ricardo Cano in the San Francisco Chronicle, “The bill, introduced Wednesday, would require cars and trucks of the 2027 model year or later that are built or sold in California to include speed governors that would prohibit motorists from driving more than 10 mph over posted speed limits.” The bill would exempt emergency vehicles.

Cities are turning to lower speed limits as one tool for reducing roadway deaths. For pedestrians, the chance of dying after being hit by a vehicle dramatically increases with higher speeds.

The proposed bill would also require trucks over 10,000 pounds to be equipped with side underride guards, which prevent vehicles and people from going under trucks during a crash. Rear underride guards have been required since 1998—though the movement to mandate them began in 1967 after the grisly death of actress Jayne Mansfield in an underride crash.

Wednesday, January 24, 2024 in San Francisco Chronicle

Large blank mall building with only two cars in large parking lot.

Pennsylvania Mall Conversion Bill Passes House

If passed, the bill would promote the adaptive reuse of defunct commercial buildings.

April 18, 2024 - Central Penn Business Journal

Street scene in Greenwich Village, New York City with people walking through busy intersection and new WTC tower in background.

Planning for Accessibility: Proximity is More Important than Mobility

Accessibility-based planning minimizes the distance that people must travel to reach desired services and activities. Measured this way, increased density can provide more total benefits than increased speeds.

April 14, 2024 - Todd Litman

Rendering of wildlife crossing over 101 freeway in Los Angeles County.

World's Largest Wildlife Overpass In the Works in Los Angeles County

Caltrans will soon close half of the 101 Freeway in order to continue construction of the Wallis Annenberg Wildlife Crossing near Agoura Hills in Los Angeles County.

April 15, 2024 - LAist

Facade of brick multistory apartment buildings in New York City with fire scapes.

New York Passes Housing Package Focused on New Development and Adaptive Reuse

The FY 2025 budget includes a new tax incentive, funding for affordable housing on state land, and support for adaptive reuse and ADUs.

14 minutes ago - Governor Kathy Hochul

"No 710" lawn sign on green lawn.

LA Metro Board Approves New 710 Freeway Plan

The newest plan for the 710 corridor claims it will not displace any residents.

April 22 - Streetsblog LA

Close-up of row of electric cars plugged into chargers at outdoor station.

Austin’s Proposed EV Charging Rules Regulate Station Locations, Size

City planners say the new rules would ensure an efficient distribution of charging infrastructure across the city and prevent an overconcentration in residential areas.

April 22 - Austin Monitor

News from HUD User

HUD's Office of Policy Development and Research

Call for Speakers

Mpact Transit + Community

New Updates on PD&R Edge

HUD's Office of Policy Development and Research

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.