By California law, a CA resident who casts a vote-by-mail ballot can find out: (A) if his/her ballot arrived at the county election office, (B) if the ballot was counted, and (C) if not, the reason it was not counted. Learn more about tracking your ballot at < sos.ca.gov/elections/ballot-status > or at < california.ballottrax.net >.
And remember to Vote Early!