Utah Code § 23A-10-302: Conveyance or equipment detainment or quarantine.

(1) The division, a port-of-entry agent, a natural resources officer, or a peace officer may detain or quarantine a conveyance or equipment if:

(a) the division, agent, natural resources officer, or peace officer:

(i) finds the conveyance or equipment contains an invasive mussel; or

(ii) reasonably believes that the person transporting the conveyance or equipment is in violation of Section 23A-10-201; or

(b) the person transporting the conveyance or equipment refuses to submit to an inspection authorized by Section 23A-10-301.

(2) The detainment or quarantine authorized by Subsection (1) may continue for:

(a) up to five days; or

(b) the period of time necessary to:

(i) decontaminate the conveyance or equipment; and

(ii) ensure that an invasive mussel is not living on or in the conveyance or equipment.