Section 2220 Of Article 2. Residency Confirmation Procedures From California Elections Code >> Division 2. >> Chapter 3. >> Article 2.

. (a) The county elections official shall conduct a preelection residency confirmation procedure as provided in this article. This procedure shall be completed by the 90th day immediately prior to the primary election. The procedure shall be initiated by mailing a nonforwardable postcard to each registered voter of the county preceding the direct primary election. Postcards mailed pursuant to this article shall be sent "Address Correction Requested, Return Postage Guaranteed," and shall be in substantially the following form: