(c) School or Treatment. – Attendance at an ADET school is required if none of the following applies and completion of a treatment program is required if any of the following applies:

(1) The person took a chemical test at the time of the offense that caused the person's license to be revoked and the test revealed that the person had an alcohol concentration at any relevant time after driving of at least 0.15.

(2) The person has a prior conviction of an offense involving impaired driving.

(3) The substance abuse assessment identifies a substance abuse disability.