Cautionary statements that are required by law, or regulations adopted pursuant to law, to be printed upon the labels of containers in which dangerous drugs, poisons, and other harmful substances are packaged shall be printed in the English language in a conspicuous place in type of conspicuous size in contrast to the typography, layout, or color of the other printed matter on the label.
Source:
Section 108800, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=108800..