The department may revoke or suspend any plumber's license upon proof that the licensee: (1) Has knowingly violated this chapter, the Kentucky State Plumbing Code, or the rules and regulations of the department; (2) Has practiced fraud or deception in applying for or obtaining a license; (3) Is incompetent to perform services as a licensed master plumber or a licensed journeyman plumber; (4) Has permitted his or her license to be used directly or indirectly by another to obtain or perform plumbing work or services; or (5) Is guilty of other unprofessional or dishonorable conduct of a character likely to deceive or defraud the public. Effective:June 29, 2017