Any person eligible to register, who has been honorably discharged or is on officially authorized leave from the Uniformed Services of the United States, or who has been terminated in such service or employment overseas, or who is the spouse or dependent of a person who has been honorably discharged, is on authorized leave from the Uniformed Services of the United States or who has been terminated in such service or employment overseas, and returned home within ninety (90) days preceding an election, shall be entitled to vote a provisional ballot at such election in the precinct for which the person is a qualified elector without being registered. Such person shall be required to provide proof of identity as required in Section 7-114 of this title and shall be entitled to cast a provisional ballot and to have the provisional ballot counted upon completion of an affidavit as required by Section 7-116.1 of this title.
Okla. Stat. tit. 26, § 14-121