North American Product Classification System (NAPCS) Canada 2017 Version 1.0
- 412 - Medium and heavy trucks, buses, and other motor vehicles
- 41213 - Freight and utility trailers
- 412131 - Truck trailers
- 4121311 - Truck trailers with high axle rating
- 4121312 - Truck trailers with low axle rating
- 412132 - Other trailers
- 4121321 - Other trailers
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