(a) At the discretion of the department, the employer shall permit the department to test a sample of its drivers tested and certified by the employer, for the purposes of comparing pass/fail results between the employer's Examiner and the department's Examiners.

(b) The selection of drivers to be tested shall be determined by the department.

(c) The employer shall notify each certified driver of the possibility of being required to pass a department-administered test at the department's discretion.

(d) The department shall provide written notice to the employer and the driver when the driver is selected for the department-administered test.

(e) The employer shall be held responsible for ensuring that the driver is available for a test at the department within 30 days of the department's notice for a department-administered test unless the driver is no longer employed by the employer. The employer must submit a copy of the driver's drive test score sheets to the department within 30 days of the written notice of the selection. If the driver is no longer employed by the employer, the employer shall notify the department within 10 days of receipt of the department's notice of the selection for the department-administered test.

(f) The department shall invalidate the DL 170 ETP if the driver does not return to the department for the department-administered test, which shall result in the driver's license being downgraded to the previous class that the driver possessed before certification.

(g) The department will conduct an investigation of any driver who fails the department-administered test and may require a re-examination of the driver to retain the class of license issued through the DL 170 ETP.

(h) If the driver fails the department-administered re-examination, the department shall downgrade the license to the previous class that the driver possessed before certification.