When is the Pennsylvania Primary? Tuesday, May 15th, from 7 AM to 8 PM.
Who can vote in the Primary? In Pennsylvania, only voters who are registered members of the Republican or the Democratic parties can vote in the Primary. Republicans only vote for Republican candidates and Democrats only vote for Democratic candidates. (In the November general election, every registered voter can vote for candidates of any party.)
How do I know if I am registered? You can check your voter registration status.
Can I register or change my registration from Independent to Democrat or Republican? No, it is too late. In Pennsylvania it has to be at least 30 days before an election for you to register or change your party affiliation.