Unusual definition of class 3. I thought class 3 was typically 45 KM/h, but with no throttle. Raleigh has a class 3 bike with a throttle option, but if you engage the throttle it drops the assisted speed from 45 KM/h down to 32 KM/h to comply with class 2 rules in most jurisdictions, since class 3 is usually throttle-less.
What's interesting about this for me is that it seems to be presaging new motor vehicles rules for British Columbia. At present, BC's motor vehicle act doesn't have the 3 class system, but them using it in their new parks policy suggests they're anticipating updates to bring the 3 class system to our motor vehicle act. That'd be pretty awesome.