If hot water is used for sanitization in manual warewashing operations, the sanitizing compartment of the sink shall be designed with an integral heating device that is capable of maintaining water at a temperature not less than 171°F and provided with a rack or basket to allow complete immersion of equipment and utensils into the hot water.
Source:
Section 114099.4, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=114099.4..