Mississippi Tire Regulations
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Tire Size, Thread Depth, Width and Snow Chains Regulations
Every solid rubber tire on a vehicle shall have rubber on its entire traction surface at least one (1) inch thick above the edge of the flange of the entire periphery.
No person shall operate or move on any highway any motor vehicle, trailer, or semitrailer having any metal tire in contact with the roadway.
No tire on a vehicle moved on a highway shall have on its periphery any block, stud, flange, cleat, or spike or any other protuberances of any material other than rubber which projects beyond the tread of the traction surface of the tire. However, it shall be permissible to use farm machinery with tires having protuberances which will not injure the highway, and it shall be permissible to use tire chains of reasonable proportions upon any vehicle when required for safety because of snow, ice, or other conditions tending to cause a vehicle to skid.
The Mississippi Department of Transportation and local authorities in their respective jurisdictions may, in their discretion, issue special permits authorizing the operation upon a highway of traction engines or tractors having movable tracks with transverse corrugations upon the periphery of such movable tracks or farm tractors or other farm machinery, the operation of which upon a highway would otherwise be prohibited under this title.
Front tire tread depth shall not be less than 4/32 inch in any two adjacent major tread grooves at three equally spaced intervals around the circumference of the tire.
- Overall Diameter (35 in example)
- Section Width (12.5 or 1250 in example)
- Rim Diameter (17 in example)
Source: https://www.ecfr.gov/cgi-bin/retrieveECFR?gp=1&ty=HTML&h=L&mc=true&=PART&n=pt49.5.393
Source: https://www.fmcsa.dot.gov/regulations/title49/section/393.75
