Primary elections occur every two years, always in an even year. These elections may include U.S. Federal, Arizona Legislative, County, and local offices that are up for re-election.
A primary election serves to narrow down each recognized political party's candidates. The candidates that win the nomination in the primary election advance to the general election. Arizona has an open primary which allows voters registered as "independent" to participate by designating to their County Recorder which partisan ballot they would like to receive.
1) If you are on the Permanent Early Voting List, make sure to contact your County Recorder's Office to specify what ballot type you'd like to receive.
2) If you choose to go to the polling sites on Election Day, simply request your ballot type from a Poll Worker.