Appendix B - Appendix B to Part 658—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 |
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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.