Who uses an EZ Pass?

[Chasnracin]

I just called the PA EZ Pass customer no-Service line. I was asking if I could register my truck under our existing account and use the transponder from our car in the truck when pulling the 5th wheel. She initially told me I would need a Commercial RV transponder when pulling the trailer because the total weight would be over 15,000 lbs and a regular transponder when not pulling it. I pressed her on how stupid that sounded. Then she changed the story and said that i could use the regular transponder all the time, no matter the weight and axle/tire count, as long as the truck is registered in the system. Bottom line...I don’t trust her answers as far as I could throw an elephant.

So if anyone uses an EZ Pass, could you let me know the regulations for it concerning our rigs and which transponder can be used? Thanks!!!