Within 10 days after his appointment and before entering upon the discharge of his official duties, each of the officers appointed under the provisions of this article shall take and file his oath of office pursuant to Sections 1360 and 1363 of the Government Code.
Source:
Section 101168, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PUC§ionNum=101168..