California Code, Elections Code - ELEC § 11220

(a) A recall petition shall be submitted to the elections official for filing in his or her office during normal office hours as posted within the following number of days after the clerk or, in the case of a recall of a state officer, the Secretary of State, notifies the proponents that the form and wording of the petition meets the requirements of Article 3 (commencing with Section 11040) of Chapter 1:

(b) For purposes of this section, the number of registered voters shall be that which was reported at the last report of registration by the county elections official to the Secretary of State pursuant to Section 2187 and prior to a finding of the elections official or Secretary of State that no alterations are required in the form of the recall petition pursuant to Section 11042.