Voters who are already registered should be aware that Dec. 31 is the final day to change their party registration for the 2015 primary election.
The state constitutional offices will be on the ballot in 2015. These offices are governor/lieutenant governor, attorney general, auditor of public accounts, commissioner of agriculture, secretary of state and treasurer.
Candidates have until 4 p.m. Jan. 27 to file to run in the primary for those offices.
First-time voters have until April 20 to register for the primary elections.