California Code, Penal Code - PEN § 330.8

Notwithstanding Sections 330a, 330b, and 330.1 to 330.5, inclusive, the sale, transportation, storage, and manufacture of gambling devices, as defined in Section 330.1, including the acquisition of essential parts therefor and the assembly of such parts, is permitted, provided those devices are sold, transported, stored, and manufactured only for subsequent transportation in interstate or foreign commerce when that transportation is not prohibited by any applicable federal law. Those activities may be conducted only by persons who have registered with the United States government pursuant to Chapter 24 (commencing with Section 1171) of Title 15 of the United States Code, as amended. Those gambling devices shall not be displayed to the general public or sold for use in California regardless of where purchased, nor held nor manufactured in violation of any applicable federal law. A violation of this section is a misdemeanor.