Cal. Gov. Code § 57077.4

(a) If a reorganization consists of the dissolution of one or more districts and the annexation of all or substantially all the territory to another district not initiated pursuant to Section 56853 or by the commission pursuant to Section 56375, the commission shall order the reorganization without confirmation by the voters except that if the reorganization meets the requirements of subdivision (b), the commission shall order the reorganization subject to confirmation by the voters.

(b) The commission shall order the reorganization subject to confirmation by the voters as follows: (1) In the case of inhabited territory, protests have been signed by either of the following: (A) At least 25 percent of the number of landowners within any subject agency within the affected territory who own at least 25 percent of the assessed value of land within the territory. (B) At least 25 percent of the voters entitled to vote as a result of residing within, or owning land within, any subject agency within the affected territory. (2) In the case of a landowner-voter district, the territory is uninhabited, and protests have been signed by at least 25 percent of the number of landowners within any subject agency within the affected territory, owning at least 25 percent of the assessed value of land within the subject agency. (3) If the reorganization has been initiated by the commission pursuant to Section 56375, protests have been submitted that meet the requirements of Section 57113.