Utah Code » Title 41, Chapter 6a — Traffic Code; part 41-6a-6 — Speed Restrictions
Utah Code

Utah Code § 41-6a-605 (2026)

Minimum speed regulations

✓ current as of May 2026
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10/1/2026

An individual may not operate a motor vehicle at a speed so slow as to impede or block the normal and reasonable movement of traffic except when:
a reduced speed is necessary for safe operation;
upon a grade; or
in compliance with a traffic-control device.
Operating a motor vehicle on a limited access highway at less than the speed limit side by side with and at the same speed as a vehicle operated in the adjacent right lane is evidence of a violation of Subsection (1).
If, based on an engineering and traffic investigation, a highway authority determines that slow speeds on any part of a highway under the highway authority's jurisdiction consistently impede the normal and reasonable movement of traffic, the highway authority may post a minimum speed limit.
If a minimum speed limit is posted under this Subsection (3), an individual may not operate a vehicle at a speed below the posted minimum speed limit except:
when necessary for safe operation; or
in accordance with Section 41-6a-205.
The minimum speed limit is effective when appropriate signs giving notice are erected along the highway or section of the highway.
An individual operating a classic vehicle as described in Section 41-28-102 is exempt from the requirements of this section.
A violation of this section is an infraction.
Notes of Decisions
Cited in 1 case, 2018–2018 · leading case: State v. Salgado, 2018 UT App 139 (Utah Ct. App. 2018).
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State v. Salgado, 2018 UT App 139 (Utah Ct. App. 2018). “She testified that she was driving slowly because her "car was making a strange noise" and she "was afraid [she] was going to get into an accident.”
Utah Code § 41-6a-605(1)(a): 1 case
State v. Salgado, 2018 UT App 139 (Utah Ct. App. 2018). “She testified that she was driving slowly because her "car was making a strange noise" and she "was afraid [she] was going to get into an accident.”
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