California Code, Government Code - GOV § 84505

(a) In addition to the requirements of Sections 84502, 84503, and 84506.5, the committee placing the advertisement or persons acting in concert with that committee shall be prohibited from creating or using a noncandidate-controlled committee or a nonsponsored committee to avoid, or that results in the avoidance of, the disclosure of any individual, industry, business entity, controlled committee, or sponsored committee as a top contributor.

(b) Written disclosures required by Sections 84503 and 84506.5 shall not appear in all capital letters, except that capital letters shall be permitted for the beginning of a sentence, the beginning of a proper name or location, part of the contributor's trademark name or part of its name in common usage or parlance, or as otherwise required by conventions of the English language.