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SD HB1120

Bill

Official Source

Status

Introduced

1/23/2026

Primary Sponsor

Helene Duhamel

Click for details

Origin

House of Representatives

2026 Regular Session

AI Summary

  • Removes the 0.04-0.08% BAC range for commercial motor vehicle DUI violations, making any BAC of 0.04% or more a Class 2 misdemeanor
  • Allows blood alcohol testing results obtained within two hours of driving, boating, or aircraft operation to be used as evidence in DUI prosecutions
  • Adds marijuana explicitly to the list of prohibited substances for operating vehicles, boats, and aircraft while impaired
  • Expands aircraft impaired operation laws to include operation on water and lowers the BAC threshold to 0.04% (matching federal aviation standards)
  • Makes technical language changes throughout multiple statutes, replacing "shall" with "must" and updating grammatical phrasing

Legislative Description

Revise certain provisions related to operating a vehicle, boat, or aircraft while under the influence.

Motor Vehicles

Last Action

Judiciary Deferred to the 41st legislative day, Passed, YEAS 8, NAYS 4. H.J. 7

2/2/2026

Committee Referrals

Judiciary1/26/2026

Full Bill Text

No bill text available