Cal. Bus. & Prof. Code § 5272
(a) With the exception of Article 4 (commencing with Section 5300) and Sections 5400 to 5404, inclusive, this chapter does not apply to any advertising display used exclusively for any of the following purposes:
(b) With the exception of Article 4 (commencing with Section 5300) and Sections 5400 to 5404, inclusive, this chapter does not apply to any advertising display used exclusively either to advertise products, goods, or services sold by persons on the premises of an arena on a regular basis, or to advertise products, goods, or services marketed or promoted on the premises of an arena pursuant to a sponsorship marketing plan, if all of the following conditions are met:
(3) The advertising display is either of the following:
(c)
(1) Any advertising display erected pursuant to subdivision (b) and located on the premises of the arena shall be lawful only if authorized by, or in accordance with, an ordinance, including, but not limited to, a specific plan or sign district, adopted by the city, county, or city and county, that regulates advertising displays on the premises of the arena by identifying the specific displays or establishing regulations that include, at a minimum, all of the following:
(d) As used in this section, “the premises of an arena” means either of the following:
(e) As used in this section, “sponsorship marketing plan” means an agreement between the property owner, facility owner, facility operator, or occupant of the premises of an arena and a sponsor pursuant to which the sponsor is allowed to include its logo, slogan, or advertising on advertising displays and that meets both of the following conditions:
(f) Authorization of an advertising display under subdivision (b) that is a message center display is subject to the owner of the display complying with one of the following conditions: