The agency has been booking 2,000 appointments a week for drivers who provide foreign documents that lack a U.S. visa stamp.
The system allowed hundreds of thousands of undocumented immigrants to drive but has made Maryland vulnerable to fraud.
But a ban on licenses for illegal immigrants that passed this week is set to go into effect on June 1. It will require drivers to present a Social Security card or other proof that they are in the country legally to get a license.
MVA officials say they'll send cancellation letters to the 8,000 applicants who have already made appointments for June.