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Utah officially uses the term “driving under the influence” (DUI) instead of “driving while intoxicated” (DWI). However, some people still use DWI and DUI interchangeably to refer to drunk or drugged driving.

Utah's DWI laws prohibit all motorists from operating a motor vehicle:

  • + with a blood alcohol concentration (BAC) of .05% or more, or
  • + while under the influence of drugs or alcohol.

A driver is considered “under the influence” if “incapable of safely operating a vehicle” as the result of ingesting alcohol, drug or any other substance.

Utah has a “not-a-drop” law that makes it illegal for motorists who are under the age of 21 years to drive with any detectable amount of alcohol in their system.

  1st Offense 2nd Offense 3rd Offense
Maximum 180 days in jail (mandatory 2 days in jail or 48 community service)
Maximum 180 days in jail (mandatory 10 days in jail or 5 days in jail plus 30 days of electronic monitoring) Maximum 5 years in prison (mandatory 62 days in jail if prison isn't ordered)
At least $1,310
At least $1,560 At least $2,850
License Suspension
120 days
Revoked for 2 years Revoked for 2 years
Ignition Interlock Device
1 year mandatory with BAC of .16% or more (at judge’s discretion for lower BACs)
2 years (with one or more prior convictions within 10 years) 2 year (with one or more prior convictions within 10 years)