
They are things like having different requirements of a “first aid kit” in each province,
There are quite a number of different regulations for commercial vehicle equipment and operation across the provinces.
BC has some rules that were created to address thwir mountainous roads. Ontario has some of the most extensive rules on what the vehicle must be equipped with. The rules surrounding tire chains and studded tires differ across the country.
Of course, ir should be possible to harmonize them all, but that would put added burden on operators in some regions where certain requirements don’t make practical sense.
(Why would a truck in PEI need the same safety equipment as one operating in the BC mountains?)
I suspect much of the “radio silence” is a combination of “don’t tip our hand” and “not reacting prematurely to Trump’s bluster, but rather waiting to see what he actually does”.
Plus, there is a lot that is happening.
Trudeau is in Europe discussing the situation with various leaders there.
The premiers were in Washington talking to anyone and everyone they could.
And there have been a number of contingency plans made, we just have to see which (if any) of Trump’s “concepts of a plan” actually happens.
Meanwhile it looks like there is starting to be some infighting among Republicans. No need to interrupt them while that’s happening.