CA Elec Code Section 10705

(a)

All candidates shall be listed on one ballot and, except as provided in subdivision (b), if any candidate receives a majority of all votes cast, he or she shall be declared elected, and no special general election shall be held.

(b)

If only one candidate qualifies to have his or her name printed on the special general election ballot, that candidate shall be declared elected, and no special general election shall be held.