As Colorado officials continue their investigation of bogus drivers licenses, two truck-driving schools that served as third-party testers have lost their state certification. According to The Denver Post, the two schools will no longer be able to test on Colorado’s behalf.

The Post reports that Careers World Wide is accused of fraudulently reusing control numbers that are intended to track individual applicants for CDLs. In the other case, a hearing officer revoked the testing license of Colorado Driving Schools for “flagrant disregard for public safety.”