Cal. Health and Safety Code § 6490

(a) A general regulation of the board shall be entered in its minutes, and shall be published once in a newspaper published in the district, if there is one, and if not, then it shall be posted for one week in three public places in the district. (b) The publication or posting of general regulations, as required by subdivision (a), may be satisfied by either of the following actions: (1) The board of directors may publish a summary of a proposed regulation or ordinance or proposed amendment to an existing regulation or ordinance. This summary shall be prepared by an official designated by the board. A summary shall be published along with the names of those board members voting for and against the regulation or ordinance or amendment, and a certified copy of the full text of the proposed regulation or ordinance or proposed amendment to same shall be posted in the office of the clerk of the board, along with the names of those board members voting for and against the regulation, ordinance, or amendment. (2) If the official designated by the board determines that it is not feasible to prepare a fair and adequate summary of the regulation or ordinance or amendment to same, and if the board so orders, a display advertisement of at least one-quarter of a page in a newspaper published in the district shall be published. The advertisement shall indicate the general nature of, and provide information about, the regulation, ordinance, or amendment, including information sufficient to enable the public to obtain copies of the complete text of the regulation or ordinance or amendment to same, and the names of those board members voting for and against the regulation, ordinance, or amendment. (c) A subsequent order of the board that publication or posting has been made is conclusive evidence that the publication or posting has been properly made. (d) A general regulation takes effect upon expiration of the week of publication or posting.