Any person selling, offering for sale, or advertising for sale, at retail to the general public, any gasoline or other motor vehicle fuel from any place of business in this state by use of or through or from any dispensing apparatus and displaying any sign showing the total price per liter, shall, in addition, display in a conspicuous fashion in full view of the retail purchaser and in accordance with provisions of this chapter, a gallon-to-liter conversion table showing quantity and price equivalents.
Source:
Section 13470.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=13470.5..