A licensee or registrant shall give written notice to the board of a name change within 30 days after each change, giving both the old and new names. A copy of the legal document authorizing the name change, such as a court order or marriage certificate, shall be submitted with the notice.
Source:
Section 4984.9, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=4984.9..