Cal. Bus. & Prof. Code § 10083

The commissioner may periodically issue a bulletin containing matter relating to the department, and to the provisions of this part and of Chapter 1 (commencing with Section 11000) of Part 2, and the administration thereof, and may publish the same character of matter in any established periodical published in the state which in his opinion would be most likely to disseminate such matter and information to licensees under this part.