Cal. Gov't Code § 23252
The commission shall conduct a public hearing to receive information regarding its determinations, and to hear any protests and objections to the proposed county boundary change. Notices of hearing shall be published pursuant to Section 6061 in a newspaper of general circulation in each affected county.
(c) In the event any land within the territory proposed to be transferred is tide or submerged land owned by the state, the commission shall also cause written notice of the hearing to be mailed to the State Lands Commission. Such notice shall be given not less than 45 days before the time fixed for hearing.
The notices referred to in subdivisions (a) and (b) shall be given not less than 20 days before the time fixed for hearing; provided, that the notice referred to in subdivision (b) need not be sent if the owner or owners of all of the territory to be transferred have petitioned for the county boundary change or filed their consent to the boundary change in writing with the commission.
In addition: