NHTSA Memorandum on Base Course Wear Rate

NHTSA has released a memorandum detailing updated guidance on the Base Course Wear Rate (BCWR), with an effective date of January 2026. The memorandum, identified by docket number NHTSA-2001-9395-0086, provides specific information and potentially new standards for assessing wear rates.

Manufacturers and automotive firms should review this guidance to ensure compliance with the updated BCWR standards by the January 2026 effective date. While this document is classified as guidance and non-binding, adherence is crucial for demonstrating compliance with NHTSA's evolving safety and environmental standards. No specific penalties are mentioned, but non-compliance could lead to future regulatory scrutiny.