California Code, Public Utilities Code - PUC § 18051

(a) The zones authorized by this chapter shall be formed in the same manner as assessment districts are formed pursuant to the Municipal Improvement Act of 1913 (Division 12 (commencing with Section 10000), Streets and Highways Code).

(b) The resolution of intention to form a zone shall briefly describe the proposed improvement, specify the exterior boundaries of the zone, and specify the maximum amount of zone bonds to be issued to finance the proposed improvement.

(c) Upon the conclusion of the hearing on the resolution of intention and the adoption of the resolution declaring the zone formed, the board of directors of the district may proceed with the issuance of zone bonds, not exceeding the amount specified in the resolution of intention, and with the construction of the proposed improvement. The board may exercise any and all powers of the district in the zone necessary to construct the proposed improvement.

The board shall formulate the proposition to issue zone bonds and shall conduct an election in the zone affected in the same manner as for bonds of the district pursuant to Article 1 (commencing with Section 16801), Chapter 5 of this division. An affirmative vote of two-thirds of the electors voting in the zone is necessary to issue zone bonds.