At all elections, a voter claiming to be properly registered in the county and eligible to vote at the precinct in the election, but whose eligibility cannot be determined, shall be entitled to vote a provisional ballot. Once voted, the provisional ballot shall be placed in a secrecy envelope and thereafter sealed in a provisional ballot envelope.  All provisional ballots shall remain sealed in their envelopes for return to the supervisor of elections.

The county canvassing board shall examine each provisional ballot envelope to determine if the person voting that ballot was entitled to vote at the precinct where the person cast a vote in the election and that the person had not already cast a ballot in the election.

• If it is determined that the person was registered and entitled to vote at the precinct where the person cast a vote in the election, the canvassing board shall compare the signature on the provisional ballot envelope with the signature on the voter's registration and, if it matches, shall count the ballot.
• If it is determined that the person voting the provisional ballot was not registered or entitled to vote at the precinct where the person cast a vote in the election, the provisional ballot shall not be counted and the ballot shall remain in the envelope containing the Provisional Ballot Voter's Certificate and Affirmation and the envelope shall be marked "Rejected as Illegal."