Cal. Bus. & Prof. Code § 2559.3
A certificate issued to a registered spectacle lens dispenser may, in the discretion of the board, be suspended or revoked for violating or attempting to violate any provision of this chapter or any regulation adopted under this chapter, or for incompetence, gross negligence, or repeated similar negligent acts performed by the certificate holder. A certificate may also be suspended or revoked if the individual certificate holder has been convicted of a felony as provided in Section 2555.1. Any proceedings under this section shall be conducted in accordance with Chapter 5 (commencing with Section 11500) of Part 1 of Division 3 of Title 2 of the Government Code, and the board shall have all the powers granted therein.
Ca. Bus. and Prof'l. Code § 2559.3