California Code of Regulations
Title 2 - Administration
Division 7 - Secretary of State
Chapter 5 - Election Petition Signature Verification Random Sampling Verification Methodology
Article 3 - Random Sampling Formula for Verification of Elections Petitions
Section 20533 - Elections Petitions Allowed to be Verified on an on-Going Basis Before the Close of Filing

(a) Signatures in lieu of filing fee petitions verified pursuant to Elections Code section 6555.5 may be submitted to the elections official on an on-going basis prior to the close of the circulation period. The elections official may verify signatures using the random sampling methodology provided in these regulations, except that each submission must include the minimum number of signatures set forth in Elections Code section 6555.5.

(b) The elections official shall aggregate the statistically-computed signature counts for each submission to determine the total number of valid signatures on the petition.

(c) When verifying a signature in lieu of filing fee petition the elections official may use the random sampling methodology to verify signatures, the full signature verification method, or both methods. If both methods are used to verify signatures on a petition, the results shall be combined to determine the number of valid signatures on the petition.