(a) The director shall supervise and certify all inspectors authorized to conduct vehicle safety inspections at official inspection stations. The director shall:
(1) Determine minimum standards and application criteria for inspectors;
(2) Administer written and performance examinations for all applicants;
(3) Issue official inspector certificates;
(4) Monitor inspection activities of inspectors; and
(5) Conduct investigations of reported or suspected improper inspection activities.
(b) Inspector certificates shall expire four years from the date of issuance, unless revoked or suspended by the director.
(c) Recertification of inspectors shall follow the application process for initial certification.