2005 California Government Code Sections 66499.37 Article 3. Judicial Review

66499.37.  Any action or proceeding to attack, review, set aside,
void or annul the decision of an advisory agency, appeal board or
legislative body concerning a subdivision, or of any of the
proceedings, acts or determinations taken, done or made prior to such
decision, or to determine the reasonableness, legality or validity
of any condition attached thereto, shall not be maintained by any
person unless such action or proceeding is commenced and service of
summons effected within 90 days after the date of such decision.
Thereafter all persons are barred from any such action or proceeding
or any defense of invalidity or unreasonableness of such decision or
of such proceedings, acts or determinations.  Any such proceeding
shall take precedence over all matters of the calendar of the court
except criminal, probate, eminent domain and forcible entry and
unlawful detainer proceedings.