PrePass® Weigh Station Bypass
PrePass® is an automated, state-of-the-art system allowing heavy vehicles that are registered in the program to legally bypass open weigh stations.
For questions re. PrePass, call 1-800-PrePass (1-800-773-7277) or go to the PrePass web site at http://www.prepass.com.
|Transponders: Carriers obtain special transponders used for communication between computers in the weigh stations and the vehicles.|
|Green Signal: If all requirements for weight, size, safety, etc. are met, the driver receives a green signal that allows the vehicle to bypass the weigh station.|
|Red Signal: If all requirements for weight, size, safety, etc.are NOT met, the driver receives a red signal which requires the vehicle to go through the weigh station.|
|Non-PrePass™ vehicles: All heavy vehicles that are not registered in PrePass™ are required to pass through weigh stations that are open.|
|Program Statistics: The system has been in operation in California since 1994. Currently, there are 35 weigh stations across California deploying the PrePass™ technology.|
|How PrePass® Works|
|This graphic diagram shows the process of the PrePass™ system.|
|Bypass Sites Map|
|This 2.2 megabyte map shows the location of the California PrePass™ sites.|
|Bypass Sites List|
|This list includes the location and status of all bypass sites in California.|
|How to register for PrePass®|
|The PrePass™ web site allows you to register easily and learn more about the PrePass™ system.|
For questions re. PrePass®, such as enrollment and account information, call:
For technical questions re. weigh-in-motion devices, contact:
Stan Norikane at California Dept. of Transportation at (916) 654-5651.
Last revised 3/26/09.
Return to the Caltrans "Office of Truck Services" page.