The vehicle should be same class vehicle as the pass was issued for and it should be added to the account of the EZPass holder. If you use an EZPass registered for a passenger car or SUV on a big rig you will be commiting an infraction and will have to pay the associated fines. All the info is on the EZPass site for the state that issued the EZPass
You will be charged full price, if not a penelty fee
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