Cal. Civil Code § 914

(a) This chapter establishes a nonadversarial procedure, including the remedies available under this chapter which, if the procedure does not resolve the dispute between the parties, may result in a subsequent action to enforce the other chapters of this title. A builder may attempt to commence nonadversarial contractual provisions other than the nonadversarial procedures and remedies set forth in this chapter, but may not, in addition to its own nonadversarial contractual provisions, require adherence to the nonadversarial procedures and remedies set forth in this chapter, regardless of whether the builder’s own alternative nonadversarial contractual provisions are successful in resolving the dispute or ultimately deemed enforceable. At the time the sales agreement is executed, the builder shall notify the homeowner whether the builder intends to engage in the nonadversarial procedure of this section or attempt to enforce alternative nonadversarial contractual provisions. If the builder elects to use alternative nonadversarial contractual provisions in lieu of this chapter, the election is binding, regardless of whether the builder’s alternative nonadversarial contractual provisions are successful in resolving the ultimate dispute or are ultimately deemed enforceable. (b) Nothing in this title is intended to affect existing statutory or decisional law pertaining to the applicability, viability, or enforceability of alternative dispute resolution methods, alternative remedies, or contractual arbitration, judicial reference, or similar procedures requiring a binding resolution to enforce the other chapters of this title or any other disputes between homeowners and builders. Nothing in this title is intended to affect the applicability, viability, or enforceability, if any, of contractual arbitration or judicial reference after a nonadversarial procedure or provision has been completed.