ELEC § 4004

(a) “Small city” means a city with a population of 100,000 or less, as determined by the annual city total population rankings by the Demographic Research Unit of the Department of Finance.

(b) “Eligible entity” means a school district or a special district.

(c) Notwithstanding Sections 1500 and 4000, an election in a small city or an eligible entity may be conducted wholly as an all-mail ballot election, subject to the following conditions:

(1) The legislative body of the small city or the governing body of the eligible entity, by resolution, authorizes the use of mailed ballots for the election.

(2) The election is a special election to fill a vacancy in the legislative body or governing body.

(3) The election is not held on the same date as a statewide primary or general election.

(4) The election is not consolidated with any other election.

(5) The return of voted mail ballots is subject to Section 3017.