Federal Motor Vehicle Safety Standards; Modernization of FMVSS No. 108 To Accommodate ADS-Equipped Vehicles

The National Highway Traffic Safety Administration (NHTSA) proposes amending Federal Motor Vehicle Safety Standard (FMVSS) No. 108 so that certain requirements for manually operated turn signal, hazard warning signal and beam switching controls, and certain telltale requirements, apply only to vehicles with manually operated driving controls, and to allow cyan-colored Automated Driving System (ADS) marker lamps as optional equipment on ADS-equipped vehicles.

The record

Kind

Rule

Source record

Federal Motor Vehicle Safety Standards; Modernization of FMVSS No. 108 To Accommodate ADS-Equipped Vehicles (Federal Register notice)

Record published

2026-10-26

Posted here

2026-10-24

World

Machines · Road vehicles

Controls concerned

none tagged

Checked

Checked against its record on 2026-10-24 by a reader who did not draft it; report verification/reports/SIG-2026-10-24-001-2026-10-24.md.

A signal's controls are the ones its record points at, the exposure; a case's controls are the ones its records show were absent or failed, so the two can differ.

What a signal is. A signal records what a primary record says; it assigns no fault. It is lighter than a case: one dated item from one record, tagged with the world, sector and controls it touches. It becomes a case when it meets the bar for one.

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