California Codes, Code of Civil Procedure - CCP, Part 2 — Of Civil Actions, Title 10 — Actions in Particular Cases, Chapter 9 — Validating Proceedings, Section 869
No contest except by the public agency or its officer or agent of any thing or matter under this chapter shall be made other than within the time and the manner herein specified. The availability to any public agency, including any local agency, or to its officers or agents, of the remedy provided by this chapter, shall not be construed to preclude the use by such public agency or its officers or agents, of mandamus or any other remedy to determine the validity of any thing or matter.
Notes
Limits contests under this chapter by anyone other than a public agency or its officer or agent to the time and manner the chapter specifies. For public agencies and their officers or agents, availability of the chapter’s remedy does not prevent use of mandamus or another remedy to determine a matter’s validity.
Use as reference
Lexinter.net | California Code, Code of Civil Procedure - CCP § 869 | https://laws.lexinter.net/codes/california/code-of-civil-procedure/part-2/title-10/chapter-9/section-869