California Code, Government Code - GOV § 402

(a) Every person who maliciously or for commercial purposes uses or allows to be used any reproduction or facsimile of the Great Seal of the State in any manner whatsoever is guilty of a misdemeanor.

(b) Notwithstanding subdivision (a), the Great Seal of the State may be used for commercial purposes by the Golden State Museum Store located at 1020 O Street in Sacramento, and by the Capitol Bookstore and Gift Shop located in the rotunda of the restored State Capitol Building.

(c) Notwithstanding subdivision (a), the California Sesquicentennial Commission may enter into an agreement to use the Great Seal of the State for officially sanctioned products of the California Sesquicentennial celebration as approved by the commission. The funds received from these sales shall revert to the California Sesquicentennial Foundation and be used only for official Sesquicentennial celebration purposes.