California Code, Health and Safety Code - HSC § 114379.20

(1) Water, sparkling water, or flavored water, with no added natural or artificial sweeteners.

(2) Unflavored milk.

(3) A nondairy milk alternative that contains no more than 130 calories per container or serving. For purposes of this paragraph, “nondairy milk alternative” means a non-dairy fluid milk substitute that meets the standards for the National School Lunch Program as set forth in Section 210.10 of Title 7 of the Code of Federal Regulations.