This article does not prohibit the addition of fluorine or fluorine compounds to water intended for sale to the public as bottled water for domestic use in the manner and to the extent as may be approved by the department. The label of the bottled water shall, however, satisfy all of the labeling requirements prescribed by this part.
Source:
Section 110650, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=110650..