Trailer registrations for overweight/overdimensional (known as Code 23) trailers are available at motor vehicle agencies. You must register your trailer prior to applying for a permit to operate. Overdimensional and/or Overweightpermits are issued by the New Jersey Department of Transportation (NJDOT).
Code 23 trailer or semitrailer registration specifications are as follows:
To apply for a special trailer registration:
After registering your trailer, you may apply for an overdimensional and/or overweight vehicle permit. There are two permit options to apply for with a Code 23 registration. Those options are:
1. Code 23 Overdimensional Trailer Permit
This permit is to be used on the roadways of this State to move either an empty Code 23 registered trailer that exceeds the dimensional limits set forth under N.J.S.A. 39:3-84(a), OR a Code 23 overdimensional trailer with a load that does not exceed 80,000 lbs. gross vehicle weight (GVW) or any of the weight limitations specified under N.J.S.A. 39:3-84(b). This permit type is subject to the following conditions/limitations:
This Code 23 Overdimensional Trailer Permit is considered invalid if any of the above conditions are not met. If any of the above conditions are not met, the carrier must apply for a Code 23 Overweight/Overdimensional Route Permit, described below, for each one-way trip and pay any associated excess size fees.
2. Code 23 Overweight/Overdimensional Route Specific Permit
A Code 23 Overweight/Overdimensional Route Specific Permit is a special permit category that is used for the transport of heavy construction or road building machinery that exceeds the weight, or weight and size limits, specified under N.J.S.A. 39:3-84. As specified under N.J.S.A. 39:4-26, this permit is to be used to transport overweight and overdimensional road building machinery, construction related equipment or any apparatus/machinery of unusual size or weight along or across a public roadway. The following conditions and limitations apply:
a). When the combination vehicle exceeds the dimensional limits (10 feet in width and 70 feet in overall length) described under the Code 23 Overdimensional Trailer Permit above. Excess size fees shall apply in this case.
b) When the combination vehicle measures between 8 and 10 feet in width or 55 to 70 feet in overall length and the carrier does not possess a Code 23 Overdimensional Trailer Permit described above.
c) When the load exceeds the confines of the Code 23 registered trailer, including width and/or length overhang. Excess size fees shall apply in this case.
These permits are issued by the (NJDOT. Please visit the NJDOT website for further information on permitting. For direct access to “SUPERLOAD”, the State’s on-line OS/OW permitting system, click here.