Cal. Civ. Code § 5945

5945.    If a Request for Resolution is served before the end of the applicable time limitation for commencing an enforcement action, the time limitation is tolled during the following periods: (a) The period provided in Section 5935 for response to a Request for Resolution. (b) If the Request for Resolution is accepted, the period provided by Section 5940 for completion of alternative dispute resolution, including any extension of time stipulated to by the parties pursuant to Section 5940.