(a)
Except on a mobile food facility that only utilizes the water for handwashing purposes, a water heater or an instantaneous heater capable of heating water to a minimum of 120ºF, interconnected with a potable water supply, shall be provided and shall operate independently of the vehicle engine. On a mobile food facility that only utilizes the water for handwashing purposes, a minimum one-half gallon-capacity water heater or an instantaneous water heater capable of heating water to a minimum of 100°F, interconnected with a potable water supply, shall be provided and shall operate independently of the vehicle engine.(b)
A water heater with a minimum capacity of four gallons shall be provided for mobile food facilities that have a warewashing sink.(c)
A mobile food facility equipped with a three-gallon-capacity water heater that is in compliance with this section on January 1, 2014, is in compliance with this section after that date.
Source:
Section 114325, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=114325..