The Ontario government can't keep you from re setting your speed once you go back to the US. As long as you are set while in Ontario you are compliant.
The Ontario scale guys (MTO) have access to the exact time you cross the border (they use it to write thousands of false logs tickets) so if the time stamp in your ECM shows the change happened before you got to Ontario you ARE LEGAL!!! There is no legal way the Ontario government can enforce it's law's beyond it's boundries. Lift axles are now forbidden on new trailers in Ontario (they have to be self steer and can only lift below a certain speed), doesn't mean if you drive in from Michigan with one you will get a ticket. As long as you don't use it in Ontario you are fine. The wording of the law (like any other local law) is written thinking only about the jurisdiction it is written for. If laws were written and had to have wording to reflect any and all other jurisdictions the law books would get pretty heavy.
Some entrepeneur will figure out it will pay to set up shop at the Detroiter or something and offer to change the trucks back and forth. If the guy charged 20 bucks a pop and did even 20 trucks a day that would be a very profitable business! You could run it out of a car with handheld tools or a laptop!
The Ontario scale guys (MTO) have access to the exact time you cross the border (they use it to write thousands of false logs tickets) so if the time stamp in your ECM shows the change happened before you got to Ontario you ARE LEGAL!!! There is no legal way the Ontario government can enforce it's law's beyond it's boundries. Lift axles are now forbidden on new trailers in Ontario (they have to be self steer and can only lift below a certain speed), doesn't mean if you drive in from Michigan with one you will get a ticket. As long as you don't use it in Ontario you are fine. The wording of the law (like any other local law) is written thinking only about the jurisdiction it is written for. If laws were written and had to have wording to reflect any and all other jurisdictions the law books would get pretty heavy.
Some entrepeneur will figure out it will pay to set up shop at the Detroiter or something and offer to change the trucks back and forth. If the guy charged 20 bucks a pop and did even 20 trucks a day that would be a very profitable business! You could run it out of a car with handheld tools or a laptop!