What happened as a result of the agreement between th united states and canada to eliminate tariffs?

The U.S. economy has gone through terrible things during the past time being but that does not stop them from tradeing with Canada. Therefor in my opinion nothing happen between them

I hope I was some help

1. the taxes paid are used to the government in developing its country 2. its also used to build community centers where people would go to spend some valuable time with each other3. the taxes are may also be used to pay some public health sectorhope i'll be