# NHTSA vehicle lighting standards modernization

> Live situation record from CLSTR: https://clstr.news/situations/nhtsa-vehicle-lighting-standards-modernization
> Updated: 2026-10-23T20:20:46.000Z. Sources: 15. Developments: 3.

The National Highway Traffic Safety Administration (NHTSA) has announced plans to modernize Federal Motor Vehicle Safety Standard No. 108, marking the first major overhaul of U.S. vehicle lighting regulations in over 25 years.

The initiative aims to address motorist complaints regarding headlight glare, specifically caused by modern LED systems and vehicles with higher ride heights. Drivers have reported that high-intensity LED headlights can be mistaken for high beams, creating visibility and safety concerns for oncoming motorists.

To facilitate this rulemaking process, Transportation Secretary Sean P. Duffy will appoint up to 18 representatives from sectors including lighting manufacturers, safety organizations, and research institutions. The review will examine technologies such as automatic high beams, dusk sensors, and replaceable light sources, while seeking to harmonize American requirements with international standards.

NHTSA Administrator Jonathan Morrison stated that current standards prevent automakers from deploying the latest safety-improving lighting technologies. The agency is currently utilizing negotiated rulemaking and is soliciting public comments and formal nominations for committee membership through November 9, 2026.

In a new development, the NHTSA has proposed updates to the standard to accommodate automated driving systems (ADS). This proposal includes the introduction of distinctive cyan marker lamps to signal to pedestrians, cyclists, law enforcement, and other drivers when a vehicle is being operated by software rather than a human. While the use of these cyan lights would be voluntary, the agency seeks to establish uniform standards for their color, brightness, and mounting locations. Additionally, the proposal aims to provide regulatory flexibility for purpose-built vehicles that lack traditional human controls, such as steering wheels or pedals, by revising requirements for manually activated signals and switches.

## Timeline

### 2026-10-23: NHTSA proposes cyan lighting standards for autonomous vehicles

The NHTSA has proposed new US safety standards featuring optional cyan marker lamps to identify autonomous vehicles and updated regulations for cars without traditional human controls.

4 sources. https://clstr.news/cluster/nhtsa-proposes-cyan-lighting-for-automated-vehicles-in-the-us

### 2026-10-09: NHTSA to modernize vehicle lighting standards to improve road safety

The NHTSA is updating outdated vehicle lighting standards for the first time in 25 years to address headlight glare, modernize LED technology, and align with international safety regulations.

7 sources. https://clstr.news/cluster/nhtsa-to-modernize-vehicle-lighting-standards-to-address-headlight-glare

### 2026-10-07: NHTSA to modernize U.S. vehicle lighting standards to address headlight glare

NHTSA is initiating its first major overhaul of U.S. vehicle-lighting standards in over 25 years to address headlight glare and modernize regulations for LED and adaptive lighting technologies.

5 sources. https://clstr.news/cluster/nhtsa-to-modernize-us-vehicle-lighting-standards-to-address-headlight-glare

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Cite as: NHTSA vehicle lighting standards modernization. CLSTR, https://clstr.news/situations/nhtsa-vehicle-lighting-standards-modernization