Any person who is a member of the board may be appointed by his or her appointing authority to continue to serve as a member of the board after the termination of his or her term of office for a period not to exceed four years after the date of termination of his or her term of elected office.
Source:
Section 120050.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PUC§ionNum=120050.5..