A. Definitions. For the purposes of this section, the terms "harmful matter," "person," "distribute," "knowingly," "exhibit," and "minor," shall have the meanings specified in Section 313 of the California Penal Code, as may be amended from time to time. The term "blinder rack" shall mean opaque material affixed in front of or inside a newsrack which prevents exposure of harmful matter to the public view.

B. Prohibition. No person shall knowingly exhibit, display, or cause to be exhibited or displayed, harmful matter in any newsrack located in a public place from which minors are not excluded, unless blinder racks have been installed so that the lower two-thirds of the matter is not exposed to public view.