South Carolina has no formal party registration, so registered voters can participate in the primary regardless of whether they identify as Republicans, Democrats or independents.

However, if you voted in the Democratic primary this month, you can’t vote in the Republican one, too.

The polls will be open on Election Day from 7 a.m. to 7 p.m. (You can find your polling location here.) You’ll need to show photo identification.

If you’re not already registered to vote, it’s too late to do so for this primary; the deadline was last month. But you can find the information you need here to register in time for the nonpresidential primaries in June — when congressional, state legislative and local races will be on the ballot — and the general election in November.