In the event a health emergency is declared by the board of supervisors in a county, or in the event a county health emergency is declared by the county health officer pursuant to Section 101080, the local health officer shall have supervision and control over all environmental health and sanitation programs and personnel employed by the county during the state of emergency.
Source:
Section 101310, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=101310..