Each of the following facts constitutes a ground for disciplinary action against a holder of a license or certificate:
- (1) he is practicing in violation of the provisions of this chapter;
- (2) he has obtained the certificate or license by fraud or misrepresentation;
- (3) he is impersonating a landscape architect or a former landscape architect of the same or similar name, or is practicing under an assumed, fictitious, or corporate name;
- (4) he has aided or abetted, in the practice of landscape architecture, a person not authorized to practice landscape architecture under the provisions of this chapter;
- (5) in the practice of landscape architecture, he has been guilty of fraud or deceit, negligence, wilful misconduct, or gross incompetence;
- (6) he has affixed his seal to plans, drawings, specifications, or other instruments of service which have not been prepared by him or under his immediate and responsible direction or has permitted his name to be used for the purpose of assisting a person, not a landscape architect, to evade the provisions of this chapter.