Cal. Elec. Code § 9302
Before circulating an initiative petition in any district, the proponents of that measure shall publish a notice of intention. The notice shall be accompanied by a printed statement stating the reasons for the proposed petition. The printed statement shall not exceed 500 words. The notice shall be signed by at least one, but not more than five, proponents, and shall be in substantially the following form:
"Notice of Intention to Circulate Initiative Petition
Notice is hereby given of the intention of the persons whose names appear hereon of their intention to circulate the petition within the ____ district for the purpose of ____. A statement of the reasons for the proposed action as contemplated in the petition is as follows:"
Ca. Elec. Code § 9302