Border Crossing Transponders :
The transponder, also known as a User Fee, is a sticker that contains an electronic chip that transmits information about a vehicle and border crossing User Fee payment status.
The User Fee year begins January 1st and ends December 31st. Therefore, all User Fees expire December 31st and are eligible for renewal.
User Fees are valid for the calendar year only. Transponders have a life span of up to 10 years and remain with the vehicle. Transponders must be deactivated from your fleet if the vehicle is sold. Vehicles that do not have an annual User Fee will be required to pay a per crossing fee each time the vehicle enters the United States. If the vehicle’s User Fee is not renewed, the transponder will continue to transmit information at the port. However, a per-crossing fee will be charged.
The transponder is to be placed horizontally on the inside lower left of the truck’s windshield at least 2-1/2 inches away from the metallic frame but within a band 4-1/2 inches from the bottom of the windshield and at least 3 inches from any other windshield mounted transponder.
The transponder should never be placed in a vertical position or in a location where it would obstruct the vision of the driver. Transponders CANNOT be affixed to the wing-windows and areas with glass curvature should be avoided.