CARB Proposes to Repeal Advanced Clean Fleets Regulation
The California Air Resources Board (CARB) has proposed to repeal the High-Priority and Drayage components of the Advanced Clean Fleets (ACF) regulations. The proposal also includes changes to the Low Carbon Fuel Standard (LCFS) regulations and implements AB 1594 (flexibility for public utilities).
Congress Eliminates Corporate Average Fuel Economy (CAFE) Penalties for Passenger Cars and Light Trucks
In one of its many changes, the One Big Beautiful Bill Act, enacted on July 4, 2025, eliminated civil penalties for noncompliance with federal fuel economy standards. Specifically, Section 40006 of the Act amends the language of the Corporate Average Fuel Economy (CAFE) statute to reset the maximum civil penalty to $0.00. Although the statute and its implementing regulations otherwise remain in place, this amendment removes any civil penalties for producing passenger cars and light trucks that do not meet fuel economy requirements.
Department of Transportation Announces a Streamlined Regulatory Exemption Process for Autonomous Vehicles
On June 13, the U.S. Department of Transportation (DOT) and the National Highway Traffic Safety Administration (NHTSA) announced changes to the process for exempting autonomous vehicle companies from the Federal Motor Vehicle Safety Standards (FMVSS) under 49 C.F.R. Part 555. Part 555 offers an important route for the sale and deployment of innovative autonomous vehicles. The recent announcement evidences a desire to speed up agency decisions on Part 555 exemptions, though the application process will continue to be a substantial undertaking.
Deregulatory Announcements at the U.S. Department of Transportation: A Sign of Bigger Things to Come?
On May 29, the U.S. Department of Transportation announced more than 50 deregulatory actions at the three operating administrations of the department that focus on road transportation: the Federal Highway Administration (FHWA), Federal Motor Carrier Safety Administration (FMCSA), and National Highway Traffic Safety Administration (NHTSA). The Secretary of Transportation was quoted as saying, “my department is slashing duplicative and outdated regulations that are unnecessarily burdensome, waste taxpayer dollars, and fail to ensure safety.”
NHTSA Announces New Policies to Promote Autonomous Vehicles
On April 24, 2025, the Department of Transportation announced the new Automated Vehicle (AV) Framework from the National Highway Traffic Safety Administration (NHTSA). The announcement, which was accompanied by a video from the Secretary of Transportation, included two new policy developments. First, NHTSA released a Third Amended version of its Standing General Order on Automated Driving Systems (ADS) and Advanced Driver Assistance Systems (ADAS). Second, NHTSA announced that it would expand its exemption program for autonomous vehicles that do not fully comply with NHTSA’s Federal Motor Vehicle Safety Standards. This update discusses both developments and their broader implications.