To the OP, I suspect that you got your information here:
http://www.rvibrake.com/Towing-Laws-s/1826.htmThe information presented in the above link contains errors and is not up-to-date.
Keep in mind that RVibrake is a business that sells braking systems and breakaway systems. The information on their website is presented in such a way to help influence you into purchasing a braking system - preferably theirs.
It is up to each RVer to know the the towing laws of each state/province that they are driving through. Relying on a summary page that was prepared by a 3rd party may give the arresting officer a good chuckle when they add towing violations to your {insert name of} citation.