INDIANAPOLIS (AP) — As many as 4 million Indiana drivers could become plaintiffs in a lawsuit alleging the Indiana Bureau of Motor Vehicles has overcharged for driver’s licenses since 2007.

WISH-TV and the Indianapolis Star report Marion Superior Court Judge Heather Welch granted class-action status to the case Monday.

Indianapolis attorney Irwin Levin filed suit in March claiming all Indiana drivers under the age of 75 who obtained or renewed a license since 2007 were overcharged as much as $7 per license.

Levin says drivers over 75 receive a different type of license and the BMV hasn’t overcharged for those.

The suit seeks more than $30 million in damages. It claims Indiana has more than 4 million licensed drivers.

BMV spokesman Dennis Rosebrough has said the agency doesn’t comment on pending litigation.