All approved schools and courses of instruction are subject to review by the Department. The review shall include consideration of a comparison between the graduation or completion rate for the school and the graduation or completion rate for the schools within that classification of schools. Consideration shall be given to complaints and information forwarded to the Department by the Federal Trade Commission, Better Business Bureaus, the Illinois Attorney General’s Office, a State‘s Attorney’s Office, other State or official approval agencies, local school officials, and interested persons. The Department shall investigate all complaints filed with the Department about a school or its sales representatives.
     A school shall retain the records, as defined by rule, of a student who withdraws from or drops out of the school, by written notice of cancellation or otherwise, for any period longer than 7 years from the student’s first day of attendance. However, a school shall retain indefinitely the transcript of each student who completes the program and graduates from the school.