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The Alabama Law Enforcement Agency, Department of Public Safety has adopted Part 393 of the Federal Regulations.
The Public Service Commission has regulations that are similar to the Federal Regulations.
Under the Department of Public Safety adoption, Part 393 applies to intrastate commercial motor vehicles 26,001 pounds or more, or vehicles of any size which transport a placardable amount of hazardous materials.
No requirements.
All buses, truck and semitrailers shall have mudflaps covering the rear of the rear wheels sufficient to prevent as far as practicable gravel, stones or other materials from being thrown into the windshields of other vehicles. This applies only to vehicles regulated by the Public Service Commission.
No tire with any block, stud, flange, cleat or spike or other protuberance made of any material other than rubber which projects beyond the tread of the traction surface may be used on a vehicle moved on a highway in Alabama.
Exception — Metal studded or safety spike tires of reasonable proportions may be used when required for safety because of snow, rain, or other conditions tending to cause a vehicle to slide or skid.
Tire chains of reasonable proportions may be used when required for safety because of snow, rain, or other conditions tending to cause a vehicle to slide or skid.
The windshields and windows of all motor vehicles shall afford a clear view, and no sign, poster or other non-transparent material shall be displayed on any glass area.