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S 3775
Recent Bills/S 3775

Stop Underrides Act 2.0

IntroducedFebruary 4, 2026
Introduced7 months ago
Intro
Senate
House
Pres
Introduced in Senate
Transportation and Public Works
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Why This Matters

This bill would require stronger underride protection on trailers, semitrailers, and single unit trucks to reduce deaths when smaller vehicles or Vulnerable Road Users slide underneath. It also updates federal definitions, directs safety studies and training, and creates public resources on underride safety.

Who this affects
Manufacturers of trailers · Operators of trailers · NHTSA · Law enforcement
What changes is this bill making?
  1. 1Requires the Department of Transportation (DOT) to issue regulations within 18 months for side underride guards on new trailers, semitrailers, and single unit trucks that prevent intrusion at speeds up to 40 miles per hour, protect Vulnerable Road Users, and improve fuel efficiency.
  2. 2Mandates full compliance with the new underride guard standards within two years of the final rule and requires DOT to review and update the standards at least every five years.
  3. 3Reconvenes and expands the Advisory Committee on Underride Protection, adding members such as families of crash victims, setting meeting schedules through 2031, and increasing member count.
  4. 4Directs DOT to publish and quarterly update a public website with underride research, rulemaking updates, victim stories, and crash data resources.
  5. 5Orders the National Academies of Sciences, Engineering, and Medicine (National Academies) to study front-end truck crashes and the Comptroller General to assess implementation of existing rear impact guard rules, each with reports to Congress.
  6. 6Requires the National Highway Traffic Safety Administration (NHTSA) to review the Fatality Analysis Reporting System (FARS) for underride crash reporting and to develop free web-based training for state and local law enforcement.
  7. 7Amends Title 49 of the United States Code to define terms such as front, side, and rear underride guards and to clarify definitions for trailers, semitrailers, single unit trucks, and Vulnerable Road Users.
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Bills must pass the House, Senate, and be signed by the President to become law.
Intro
Senate
House
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IntroducedCurrentFeb 4

Introduced in Senate

Sponsors
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Senate
House
President

The President

Donald Trump
President
Awaiting Vote
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