Gov. Code, § 54984.1

The procedures set forth in this chapter shall be available to any local agency authorized by law to provide water, sewer, or water and sewer service, and authorized to fix, levy, or collect any standby or availability charge or assessment in connection with the provision of that service. Any local agency electing to utilize the standby charge procedures set forth in this chapter shall, in connection with the procedures for fixing and levying of these charges for the year in which the election is made, be governed by the provisions of this chapter alone. Nothing in this chapter shall affect the standby charge procedures authorized or provided for otherwise, if the local agency elects to use those procedures. Any charges imposed under this chapter are deemed to be assessments and, if imposed upon public entities, are subject to Chapter 13.7 (commencing with Section 54999).