All the seats on the court are elected at large by the voters of Ohio. Every two years, two of the associate justice seats are up for election. For one of those three elections in a cycle, the chief justice's seat is up for election. In order to run for a seat on the court, a person must be admitted to the bar in Ohio, and have practiced as a lawyer or served as a judge for at least six years. There is an age limit: One may not run for a seat on any Ohio court if one is more than 70 years of age. This limit often forces the retirement of long-time justices. Justice Francis E. Sweeney, Sr., was barred by this rule from running for re-election in 2004, as was Justice Terrence O'Donnell in 2018 and as Chief Justice Maureen O'Connor will be in 2022. However, a judge who reaches the age of 70 after being elected is not prevented from completing her or his term in office.