Federal Register #NHTSA-2026-1882

NHTSA Public Workshop on Aftermarket Vehicle Modifications and ADAS Performance

NHTSA is convening a public workshop on aftermarket vehicle modifications and their potential effects on advanced driver assistance systems (ADAS). - Government host: National Highway Traffic Safety Administration (NHTSA), within the U.S. Department of Transportation (DOT). - Workshop focus: Engineering considerations, real-world impacts, research and data needs, and ways to preserve safety-critical ADAS functionality while allowing vehicle modifications. - Participants and input: Industry stakeholders, technical experts, and policymakers are invited to discuss information gaps and potential next steps. - Procurement status: This is a public event, not a solicitation for products or services. No OEMs, vendors, products, quantities, or part numbers are identified. - Event details: Attendance is free with registration; the in-person workshop will be recorded for later viewing.

Description

The National Highway Traffic Safety Administration (NHTSA) will hold a public workshop on December 10, 2026, to discuss how aftermarket vehicle modifications affect advanced driver assistance system (ADAS) performance. The event will bring together industry stakeholders, technical experts, and policymakers to examine engineering parameters, field realities, and data frameworks, and to explore approaches to preserving safety-critical ADAS functionality while allowing vehicle modifications. Attendance is free but registration is required by December 3, 2026; the workshop will be held in person at DOT Headquarters and will not be livestreamed, though a recording will be made available afterward. Public comments may be submitted during the 90-day period following the meeting, through April 19, 2027.

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