Appendix B to 658 - Grandfathered Semitrailer Lengths

StateFeet and inchesAlabama53-6Alaska48-0Arizona57-6Arkansas53-6California1 48-0Colorado57-4Connecticut48-0Delaware53-0District of Columbia48-0Florida48-0Georgia48-0Hawaii48-0Idaho48-0Illinois53-0Indiana2 48-6Iowa53-0Kansas57-6Kentucky53-0Louisiana59-6Maine48-0Maryland48-0Massachusetts48-0Michigan48-0Minnesota48-0Mississippi53-0Missouri53-0Montana53-0Nebraska53-0Nevada53-0New Hampshire48-0New Jersey48-0New Mexico57-6New York48-0North Carolina48-0North Dakota53-0Ohio53-0Oklahoma59-6Oregon53-0Pennsylvania53-0Puerto Rico48-0Rhode Island48-6South Carolina48-0South Dakota53-0Tennessee50-0Texas59-0Utah48-0Vermont48-0Virginia48-0Washington48-0West Virginia48-0Wisconsin3 48-0Wyoming57-41 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(h) 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(h) 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(h) may operate without a permit provided the distance from the kingpin to the center of the rear axle is 46 feet or less.