Grandfathered Semitrailer Lengths

State Feet and inches Alabama 53-6 Alaska 48-0 Arizona 57-6 Arkansas 53-6 California 1 48-0 Colorado 57-4 Connecticut 48-0 Delaware 53-0 District of Columbia 48-0 Florida 48-0 Georgia 48-0 Hawaii 48-0 Idaho 48-0 Illinois 53-0 Indiana 2 48-6 Iowa 53-0 Kansas 57-6 Kentucky 53-0 Louisiana 59-6 Maine 48-0 Maryland 48-0 Massachusetts 48-0 Michigan 48-0 Minnesota 48-0 Mississippi 53-0 Missouri 53-0 Montana 53-0 Nebraska 53-0 Nevada 53-0 New Hampshire 48-0 New Jersey 48-0 New Mexico 57-6 New York 48-0 North Carolina 48-0 North Dakota 53-0 Ohio 53-0 Oklahoma 59-6 Oregon 53-0 Pennsylvania 53-0 Puerto Rico 48-0 Rhode Island 48-6 South Carolina 48-0 South Dakota 53-0 Tennessee 50-0 Texas 59-0 Utah 48-0 Vermont 48-0 Virginia 48-0 Washington 48-0 West Virginia 48-0 Wisconsin 3 48-0 Wyoming 57-4 1 Semitrailers up to 53 feet may also operate without a permit by conforming to a kingpin-to-rearmost axle distance of 38 feet. Semitrailers that are consistent with 23 CFR 658.13(g) may operate without a permit provided the distance from the kingpin to the center of the rear axle is 46 feet or less. 2 Semitrailers up to 53 feet in length may operate without a permit by conforming to a kingpin-to-rearmost axle distance of 40 feet 6 inches. Semitrailers that are consistent with 23 CFR 658.13(g) may operate without a permit provided the distance from the kingpin to the center of the rear axle is 46 feet or less. 3 Semitrailers up to 53 feet in length may operate without a permit by conforming to a kingpin-to-rear axle distance of 41 feet, measured to the center of the rear tandem assembly. Semitrailers that are consistent with 23 CFR 658.13(g) may operate without a permit provided the distance from the kingpin to the center of the rear axle is 46 feet or less. [53 FR 2599, Jan. 29, 1988, as amended at 54 FR 1931, Jan. 18, 1989; 62 FR 10181, Mar. 5, 1997; 72 FR 7749, Feb. 20, 2007]