In addition to the unprofessional conduct described in RCW 18.235.130, the director may take disciplinary action against any applicant or licensee under this chapter if the licensee or applicant:
(1) Has been found to have violated any provisions of chapter 19.86 RCW;
(2) Has engaged in a practice prohibited under RCW 18.16.060 without first obtaining, and maintaining in good standing, the license required by this chapter;
(3) Has engaged in the commercial practice of cosmetology, hair design, barbering, manicuring, esthetics, or master esthetics in a school;
(4) Has not provided a safe, sanitary, and good moral environment for students in a school or the public;
(5) Has failed to display licenses required in this chapter; or
(6) Has violated any provision of this chapter or any rule adopted under it.