It is unlawful for any person to sell, offer, or hold for sale any shellstock or shucked shellfish that has not been harvested from a growing area which has been certified by the department or that has not been purified in accordance with Section 112170.
Source:
Section 112190, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=112190..