Canadian Federal Regulations
The CVSE/DoT states -
"The truck shown below with the trailer stacked on the logging truck can use the personal use exemption of <75kms provided they are returning to the same location they left from to start the next day. However, if the vehicle is not scheduled to return to the same location the following day the personal exemption does not apply as this would be deemed repositioning of the commercial vehicle.
This does not apply to any logging truck set-up where a trailer remains in contact with the ground."