Light motor vehicle brake systems; Quality (ICS code(s): 03.120); Braking systems (ICS code(s): 43.040.40); Passenger cars. Caravans and light trailers (ICS code(s): 43.100)

Federal Motor Vehicle Safety Standards; Modernization of FMVSS No. 135 To Accommodate ADS-Equipped Vehicles

In response to a request from Varnum LLP (Varnum), the National Highway Traffic Safety Administration (NHTSA) is announcing a 30-day extension of the public comment period for the notice of proposed rulemaking (NPRM) published on 26 June 2026 (notified as G/TBT/N/USA/2294) proposing to amend Federal Motor Vehicle Safety Standard (FMVSS) No. 135, ''Light vehicle brake systems.'' The proposed modifications would distinguish how regulations apply to vehicles with and without manually operated driving controls. The comment period for the NPRM was originally scheduled to end on 27 July 2026. It will now end on 26 August 2026.

The comment period for the NPRM published at 91 FR 38593 on 26 June 2026, is extended to 26 August 2026.