Under Utah law, when must you reduce your speed below the posted speed limit?
In Utah, drivers are required to reduce their speed below the posted limit when encountering conditions that make it unsafe to drive at the normal speed. This includes adverse weather conditions like rain or snow, heavy traffic, or road construction. The rule is in place to maintain control of the vehicle and ensure safety for all road users.
See the exact questions that will be on the 2026 Utah DMV exam.
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