Article 3. Mailings of California Elections Code >> Division 9. >> Chapter 4. >> Article 3.
Whenever the elections official is required to mail official
matter, as provided in Sections 9312, 9315, and 9317, only one copy
of each such official matter shall be mailed to a postal address
where two or more registered voters have the same surname and the
same postal address.
This section shall only apply if the legislative body of the
district adopts this section, and the elections official conducting
the election approves of the procedure.