(a)
Except as specified in subdivision (b), a sign or poster that notifies food employees to wash their hands shall be posted at all handwashing lavatories used by food employees, and shall be clearly visible to food employees.(b)
This section does not apply to toilet rooms in guestrooms of restricted food service facilities.
Source:
Section 113953.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=113953.5..