35 years ago, I worked in a motor home factory. When a coach was to be shipped to Canada, CSA standards applied to wiring and plumbing.
1. The difference between a CSA and non-CSA faucet was the lable. The purchasing agent got the supplier to hand deliver CSA lables. I would put the CSA label on the faucets when they were sent to the floor. The lables were hidden in the parts room and I was the only one who knew where they were kept. That did not comply with CSA standards at all, as the labels were to be put on only at the factory.
2. CSA wiring was crinkled and had paper covering. The sales department did not always stamp the build orders "CSA" so some coaches were built w/UL wiring. Now the inspectors were not stupid, and would pull the covers off of some of the receptacles and switches. So we were told to remove the wiring devices, wire nut CSA wire onto the UL wires, wire the devices and poke the extra wire back into the box. Of course, sometimes the existing wire was too short, especially if the staple was placed properly. You really had to pull on the UL wire to get enough length to wire nut the CSA wire, then you had to push all that extra wire and nuts back into a box that was not designed for that much wire. But a screwdriver and hammer usually made it all fit.
Next class we will discuss why staples do not hold seat belts to 1/8 panels very well, then why seats held in place with number 8 wood screws is faster than bolts welded in place and using nuts. If we have time the class will discuss how to remove silicone sealer from drain lines.