The best way is to go to the office. You can do it by mail or internet, but i always go.
Login to your NTTA account and that's how you can manage your vehicles for adding and manage ur auto information or not then call or go on their website.
Yes or by mail. You can call them for help. Online is a bit confusing
You have to go to the office off of Plano Pkwy and get a new toll tag
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