Approved Tridem List

In order to be authorized to travel at Tridem weights in Alberta, any Service Rig with a Tridem Drive must be on the Approved Tridem List.

To add a unit to the Approved Tridem List, you must provide the following documents to the Central Permit Office of Alberta:
  • Government Weigh Scale Slip – Must show equalization of each axle within 1000 kg
  • Spec Sheet
For instructions on how to obtain the proper Tridem Split Weight, please open this document:

  Tri-Split How To

Adobe Reader is required to view and print these documents.