Utah Admin. Code R714-162-8 - Tires and Wheels

(1) When examining the tire and wheels of a vehicle, the inspector shall:

(a) check the vehicle for proper mudguard protection, which must be at least as wide as the tire it is protecting, be directly in line with the tire, and maintain a ground clearance of not more than 50% of the diameter of a rear axle wheel under any conditions; and

(i) issue a rejection inspection certificate when:

(A) tire tread is not fully covered by the body, trailer, or fender;

(B) rear tires do not have the top 50% of the tire covered by mudflaps; or

(C) rear mud flaps are not as wide as the tire;

(ii) Wheel covers, mudguards, flaps, or splash aprons are not required if the motor vehicle, trailer, or semi-trailer is designed and constructed to meet the requirements in Subsection R714-162-8(1)(a).

(b) check for proper tire width, size, and load rating; and (i) issue a rejection inspection certificate when:

(A) a tire's width is beyond the outside of the vehicle body; or

(B) a tire is not of proper size and load rating per axle as determined by OEM specifications;

(c) check valve stems for damage or cracks; and

(i) issue a rejection inspection certificate when:

(A) a valve stem is cracked, damaged, or shows evidence of wear because of misalignment;

(d) check the rims; and

(i) issue a rejection inspection certificate when:

(A) rims and rings are mismatched;

(B) a ring shows evidence of slippage, rust, or damage;

(C) a rim or ring is bent, sprung, cracked, improperly sealed, or otherwise damaged;

(D) there is slippage on Louisville or Dayton type wheels;

(E) wheel nuts, studs, or clamps are loose, broken, damaged, missing, mismatched, cracked, stripped, have improper thread engagement, or otherwise ineffective;

(F) wheel rings, disc, spoke, or rim type wheels show any evidence of having been repaired or re-welded;

(G) stud holes are out of round or elongated;

(H) there are cracks between the hand holes or the stud holes in the disc; or

(I) wheel casting is cracked or there is evidence of wear in the clamping area; and

(e) check the wheel welds; and

(i) issue a rejection inspection certificate when:

(A) there are any cracks in welds attaching wheel disc to rim;

(B) there are any cracks in welds attaching tubeless demountable rim to the adapter;

(C) there are any welded repairs on any aluminum wheels; or

(D) there are any welded repairs other than disc to rim attachment on steel disc wheels mounted on the steering axle.

(2) When examining the front steering axle tires of a vehicle, the inspector shall:

(a) check tire tread depth, which may not be measured on the tread wear bar; and

(i) issue a rejection inspection certificate when tread depth is less than 4/32 inch on steering axle tires when measured in any two adjacent major tread grooves at three equally spaced intervals around the circumference of the tire; and

(b) check tire condition and inflation; and

(i) issue a rejection inspection certificate when:

(A) a tire is cut or otherwise damaged, exposing body ply or belt material through the tread or sidewall;

(B) a tire has any tread or sidewall separation;

(C) a tire is labeled for other than highway use or displaying other markings that would exclude use on a steering axle;

(D) a tire is a tube-type radial tire without radial tube stem markings, which include a red band around the tube stem, the word "radial" embossed in metal stems, or the word "radial" molded in rubber stems;

(E) there is mixing of bias and radial tires on the same axle;

(F) a tire flap protrudes through the valve slot in rim and touches the stem;

(G) There are re-grooved tires on the steering axle;

(H) a tire has a boot, blowout patch, or other ply repairs;

(I) the weight carried exceeds the tire load limit, including an overloaded tire resulting from low air pressure;

(J) a tire is flat, has noticeable leak, or is inflated to less than 50% of the vehicle manufacturer's recommended tire pressure;

(K) a tire is mounted or inflated so that it comes in contact with any part of the vehicle;

(L) a tire is over inflated;

(M) a tire is worn to the extent secondary rubber is exposed in the tread or sidewall area; or

(N) if the vehicle is a bus and is equipped with a recapped or re-treaded tire.

(3) When examining tires other than the front steering axle tires of a vehicle, the inspector shall:

(a) check the tire tread depth, which may not be measured on the tread wear bar; and

(i) issue a rejection inspection certificate when tread depth is less than 2/32 inch in any two adjacent major tread grooves at three equally spaced intervals around the circumference of the tire; and

(b) check the tire condition and inflation; and (i) issue a rejection inspection certificate when:

(A) the weight carried exceeds the tire load limit, including an overloaded tire resulting from low air pressure;

(B) a tire is flat, has noticeable leak, or is inflated to less than 50% of the vehicle manufacturer's recommended tire pressure;

(C) a tire is cut or otherwise damaged, exposing body ply or belt material through the tread or sidewall;

(D) a tire has any tread or sidewall separation;

(E) a tire is mounted or inflated so that it comes in contact with any part of the vehicle, including a tire that contacts its mate;

(F) a tire is labeled for other than highway use or displays other markings that would exclude its use; or

(G) a tire is worn to the extent secondary rubber is exposed in the tread or sidewall area.

(4) When examining the dual tires of a vehicle, if equipped, the inspector shall:

(a) check for mismatching of tire construction, such as radial and bias, sizes, and wear on any set of duals; and

(i) issue a rejection inspection certificate when:

(A) the tire diameter of one of the duals is not within 1/4 inch of the other on 8.25-20 and smaller, or 1/2 inch on 9.00-20 and larger;

(B) the dual tires are in contact with any part of vehicle body or adjacent tire; or

(C) a tire has a boot, blowout patch, or other ply repairs that are sub-standard and not identified by a triangular label in the immediate vicinity.

Notes

Utah Admin. Code R714-162-8

Amended by Utah State Bulletin Number 2017-15, effective 7/18/2017