Cal. Business and Professions Code § 750

(a) For purposes of this section, “prescriber” means a person authorized to write or issue a prescription pursuant to Section 11150 of the Health and Safety Code. (b) (1) Each board that licenses a prescriber shall develop informational and educational material regarding the federal Drug Enforcement Administration’s “Three Day Rule,” as codified in subsection (b) of Section 1306.07 of Title 21 of the Code of Federal Regulations, in order to ensure prescriber awareness of existing medication-assisted treatment pathways to serve patients with substance use disorder. (2) Each board shall annually disseminate the informational and educational material developed pursuant to paragraph (1) to each licensed prescriber’s email address on file with the board. (3) Each board shall post the informational and educational material developed pursuant to paragraph (1) on their internet website. (4) The requirements of this subdivision shall not apply to the Veterinary Medical Board. (c) The Medical Board of California shall also annually disseminate the informational and educational material it develops pursuant to subdivision (b) to each acute care hospital in the state. The board may disseminate the informational and educational material to each acute care hospital in the state via email. (d) The department and boards may consult with other state agencies as necessary to implement this section.