SB 320 Virginia Senate · 2026 Regular Session

Autonomous truck-mounted attenuators; pilot program authorized.

Summary

Department of Transportation; autonomous truck-mounted attenuators; pilot program authorized. Authorizes the Department of Transportation to establish a pilot program for the implementation and deployment of autonomous truck-mounted attenuators within mobile work zones, defined in the bill. The bill has an expiration date of December 31, 2031. This bill is identical to HB 582.

Issues: ✓ Transportation

Bill status signed all 5 stages cleared

Introduction

Jan 2026

Committee Review

Feb 2026

Senate Passage

Mar 2026

House of Delegates Passage

Mar 2026

Signed into Law

Apr 2026

Introduced Jan 13, 2026 Signed Apr 6, 2026

Maddy AI version diff · 2 comparisons

What changed between versions

Enrolled → Chaptered · 2 edits

MINOR

The bill was finalized and published as Chapter 180 of the 2026 Virginia Acts of Assembly. The substantive legal text regarding the pilot program for autonomous truck-mounted attenuators remains unchanged, but the document now includes official approval dates and chapter numbering.

Scope change

The bill's scope and applicability remain unchanged; the pilot program for autonomous truck-mounted attenuators in mobile work zones is authorized with the same conditions as before.

TECHNICAL

Added official chapter number (Chapter 180) and approval date (April 6, 2026) to the document header, indicating the bill has been enacted into law.

Removed draft session headers and placeholder lines that were present in the enrolled version before final publication.

Floor votes · Senate Jan 26, 2026 · House of Delegates Feb 27, 2026

How they voted

37–0

Passed · 2 other

Total votes 39

Jan 26, 2026

D Democratic20

20 Yea

100% Yea

R Republican19

17 Yea 2

89% Yea

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Apr 6, 2026

Signed into law

Approved by Governor-Chapter 180 (effective 7/1/2026)

executive

Mar 4, 2026

Upper · Passed

Signed by President

upper

Mar 4, 2026

Lower · Passed

Signed by Speaker

lower

Mar 4, 2026

Upper · Passed

Bill text as passed Senate and House (SB320ER)

upper

Feb 27, 2026

Lower · Passed

Passed House (96-Y 0-N 0-A)

lower

Feb 24, 2026

Lower · Passed

Reported from Transportation (21-Y 0-N)

lower

Feb 4, 2026

Committee

Referred to Committee on Transportation

lower

Jan 28, 2026

Upper · Passed

Read third time and passed Senate (40-Y 0-N 0-A)

upper

Jan 26, 2026

Upper · Passed

Passed by for the day

upper

Jan 26, 2026

Upper · Passed

Passed by for the day (Voice Vote)

upper

Jan 22, 2026

Upper · Passed

Reported from Transportation (15-Y 0-N)

upper

Jan 13, 2026

Committee

Referred to Committee on Transportation

upper

1 primary · 0 co-sponsors