A majority of the board or of a standing committee entitled to vote constitutes a quorum for the transaction of business. All official acts of the board or a standing subcommittee of the board require the affirmative vote of a majority of the board or committee members present.
Source:
Section 107013, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PUC§ionNum=107013..