What is the legal BAC limit for adult drivers in Utah?
0.08%
Utah lowered its limit below the federal standard.
0.05%
0.10%
0.10% has not been the US standard in decades.
0.02%
0.02% applies to under-21 drivers in many states, not adults.
Utah is the only US state with an adult DUI threshold of 0.05% BAC, adopted December 30, 2018. Every other state uses 0.08% (the federal standard). The NHTSA estimated Utah's lower limit reduced fatal crashes by about 19.8% in its first full year.
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