EZ pass is an automated, electronic toll collection system used on turnpikes, bridges and tunnels. There are 25 agencies spread across 14 states that constitute the EZ pass Interagency Group. All the member states use similar technology, permitting the travelers to make use of the same EZ pass transponder through the network. To open an EZ pass account, a minimum balance of $25 is required. The average cost of an EZ pass is $7. Interestingly, an earlier proposal by the Maryland Transport Authority to charge $1.50 per month on EZ pass accounts was vehemently opposed by a majority of the over 500,000 people, who use EZ pass accounts.