Turnpike reviews who gets a free pass at tolls

Is this for real? There are people who don't have to pay tolls....even though, by nature of their job, they're probably MOST likely to be using the Pike???

Facing the prospect of new toll increases, the Massachusetts Turnpike Authority is taking a fresh look at an old program that allows nearly 4,000 drivers to pass through toll booths without spending a dime.