NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION ISSUES PROPOSED RULE: FEDERAL MOTOR VEHICLE SAFETY STANDARDS; MODERNIZATION OF FMVSS NO. 135 TO ACCOMMODATE ADS-EQUIPPED VEHICLES; EXTENSION OF COMMENT PERIOD

WASHINGTON, July 28 -- National Highway Traffic Safety Administration has issued a proposed rule called: Federal Motor Vehicle Safety Standards; Modernization of FMVSS No. 135 To Accommodate ADS-Equipped Vehicles; Extension of Comment Period.

The proposed rule was published in the Federal Register on July 28 by Jonathan Morrison, Administrator.

Summary: In response to a request from Varnum LLP (Varnum), NHTSA is announcing a 30-day extension of the public comment period for the notice of proposed rulemaking (NPRM) published on June 26, 2026 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 ...