Cal. Bus. & Prof. Code § 7860
(b) By a majority vote, the board may publicly reprove, suspend for a period not to exceed two years, or revoke the certificate of any geologist or geophysicist registered hereunder, on any of the following grounds:
(c) By a majority vote, the board may publicly reprove, suspend for a period not to exceed two years, or may revoke the certificate of any geologist or geophysicist registered under this chapter, for unprofessional conduct. Unprofessional conduct includes, but is not limited to, any of the following: