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Adventurer, eh?
https://www.transportation.alberta.ca/2825.htm
Under the Traffic Safety Act a person is required to have an official vehicle identification number affixed to a vehicle that has its manufacturer's Vehicle Identification Number (VIN) lost or obliterated, a home made trailer or an amalgamated vehicle.
The cost for a single axle trailer is $105 ($100 + $5 GST) and $467.25 ($445 + $22.25 GST) for other vehicles. This fee covers the labour costs to examine the vehicle, confirm sources of parts to ensure they meet the requirements for VIN assignment, and to put the VIN plate on the vehicle. Included in the price is the cost of equipment and materials such as engravers, plates, and travel.