The benefits of using an E-ZPass are that a driver can pass through participating toll plazas without stopping to make a manual payment, and he does not need to carry a supply of coins or tokens. Special antennae in designated lanes at toll plazas collect the money electronically from a pre-paid account through an E-ZPass transponder attached to a vehicle's windshield.
When a customer first joins the E-ZPass program, he opens an account by pre-paying the greater of either the center's recommended minimum amount or his average monthly toll payments. He also pays a one-time fee to cover the cost of each new transponder. Customers can link their account to a credit card to ensure the account is automatically replenished when it gets low, or top up their account manually with cash or a personal check.
A driver can apply for the E-ZPass program online with one of the 26 participating agencies or in person at a customer service center. E-ZPassIAG.com offers a list of centers with links to each one's website, and a map showing the 15 states that accept the E-ZPass, including Indiana, Pennsylvania and Maine, as of September 2015. Illinois' I-Pass and North Carolina's NC Quick Pass are compatible with the E-ZPass scheme.