So take all those costs of engineering, flight test, design review, fees to Designated Engineering Representatives (or whatever the Canadian equivalent is)
= Design Approval Representative (DAR) in Canada.
Those claiming that this won't cost "tens of thousands of dollars" are simply delusional. Yes it will cost tens of thousands of dollars, many tens of thousands of collars.
Correct. Worse, there will be delays of years getting around to approving each of these type specific installations. The approval process is operating near capacity now, an industry wide program for such installation approvals would be unsustainable in operator's perception of reasonable time lines.