rotormatic,
Sorry for the delay getting onto this, every now and then I have to work for a living!
The Fire Hawk S-70 has the T-700-701C's and has no restrictions on its power, cycles or use for fire fighting. In fact, GE provided a power by the hour plan for LA County!
The restricted catagory is one way of reflecting the military certification, and works very well for safety, I think.
I don't know of any reason why Canada would not allow it to be operated, but some other PPRUNER might have a better understanding.