Introduced February 4, 2026 by Stephen Cohen · Last progress February 4, 2026
The bill aims to reduce deadly underride crashes by creating clearer federal standards, better data, and greater victim input, but it relies on later rulemaking and studies and will impose costs and administrative burdens—especially on small carriers and taxpayers—while raising some privacy and process risks.
Drivers, passengers, and vulnerable road users (pedestrians, bicyclists) are likely to see fewer fatal and serious underride crashes because the bill drives development and adoption of comprehensive underride protections and clearer safety definitions.
Road users and industry gain clearer, uniform federal standards and statutory definitions that simplify compliance and enable enforceable, nationwide underride protections instead of a patchwork of voluntary measures.
Policymakers, researchers, and the public will get better data, centralized research, independent studies, and improved crash reporting/training, enabling more targeted safety interventions and stronger, evidence-based rulemaking.
Small carriers, fleet operators, and vehicle manufacturers will face significant capital and operational costs (new equipment, redesigns, retrofits, testing) and compliance deadlines that can be passed on to consumers and disproportionately burden small businesses.
The bill creates increased administrative and program costs (committee meetings, public repository, studies, training) and new NHTSA/DOT obligations without dedicated funding, potentially diverting agency resources or raising taxpayer outlays.
Because many provisions are definitional or tied to future studies and rulemaking, regulatory action and safety upgrades could be delayed, postponing protections for vulnerable road users.
Based on analysis of 9 sections of legislative text.
Requires the Department of Transportation to adopt a safety performance standard that mandates side underride guards on new trailers, semitrailers, and single-unit trucks, with a final rule due within 18 months and full compliance required within 2 years after the rule is finalized. Also reconvenes and revises the federal Advisory Committee on Underride Protection, creates a public underride resource website, directs independent studies by the National Academies and GAO, and requires NHTSA to review underride fatality reporting and provide online training for state and local law enforcement.