The director may revoke a private tramway, elevator or lift inspector's license for the following causes:
1. Failure to submit true reports. For failure to submit true reports concerning the conditions of a tramway or elevator or for conduct determined by the director to be contrary to the best interests of tramway or elevator safety or the director; and
2. Physical infirmities. For physical infirmities that develop to a point at which it appears that an inspector is no longer able to perform the required duties in a thorough and safe manner.
3. Failure to comply with chapter or rules.