California voters who have No Party Preference status, or are registered with a party not qualified in California, will be sent postcards that allow them to "cross-over" and vote for an allowing party in their primary election.
For the upcoming Presidential Primary Election, this includes the Democratic, American Independent, and Libertarian parties. To vote Republican or other, voters must re-register, according to a County of San Luis Obispo Clerk-Recorder press release.
Over 30,000 postcards are being sent out. No Party Preference voters can notify the elections office of their ballot selection for the March election by January 3, 2020. The first mail ballots are scheduled for February 3, 2020.
Voters can check their registration status here or contact the County Clerk-Recorder at 781-5228.