Utah Code Title 72. Transportation Code § 72-7-401. Application of size, weight, and load limitations for vehicles--Exceptions

(1)(a) Except as provided in Subsection (2), the maximum size, weight, and load limitations on vehicles under this part apply to all highways throughout the state.

(b) Local authorities may not alter the limitations except as expressly provided under Sections 41-6a-204 and 72-7-408.

(a) fire-fighting apparatus;

(b) highway construction and maintenance equipment being operated at the site of maintenance or at a construction project as authorized by a highway authority;

(c) highway construction and maintenance equipment temporarily being operated between a material site and a highway maintenance site or a highway construction project if:

(d) implements of husbandry incidentally moved on a highway while engaged in an agricultural operation or incidentally moved for repair or servicing, subject to the provisions of Section 72-7-407;

(e) vehicles transporting logs or poles from forest to sawmill:

(f) tow trucks or towing vehicles under emergency conditions when:

(3)(a) Except when operating on the national system of interstate and defense highways, a motor vehicle carrying livestock as defined in Section 4-1-109, or a motor vehicle carrying raw grain if the grain is being transported by the farmer from his farm to market prior to bagging, weighing, or processing, may exceed by up to 2,000 pounds the tandem axle weight limitations specified under Section 72-7-404 without obtaining an overweight permit under Section 72-7-406.

(b) Subsection (3)(a) is an exception to Sections 72-7-404 and 72-7-406.