A candidate, other than a presidential primary candidate, may withdraw from the presidential primary election by filing a written statement any time prior to the 51st day before that election. A presidential primary candidate may withdraw by filing a written statement not later than 4 p.m. on the 45th day before the presidential primary election. (R.C. 3513.30 (B) and (C))
A candidate may withdraw from the general election by filing a written statement any time prior to that election. (R.C. 3513.30 (D)) Exception: If the primary is a presidential primary, a candidate may withdraw at any time prior to the 51st day before the election.
For a replacement candidate to be named for a withdrawn nominated or certified candidate, the appropriate political party or independent's nominating committee must certify the person to fill the vacancy not later than 4 p.m. of the 76th day before the general election. (R.C. 3513.31)