Okla. Stat. tit. 21, § 51.2
Except as provided in Section 51.1a of this title, no person shall be sentenced as a second and subsequent offender under Section 51.1 of this title, or any other section of the Oklahoma Statutes, when a period of ten (10) years has elapsed since the completion of the sentence imposed on the former conviction; provided, the person has not, in the meantime, been convicted of a felony. Nothing in this section shall prohibit the use of a prior conviction for physical or sexually related child abuse as a prior conviction for second and subsequent offender purposes if the person is presently charged with a felony crime involving physical or sexually related child abuse.
Laws 1999, 1st Extr. Sess., HB 1009, c. 5, § 435, emerg. eff. July 1, 1999; Amended by Laws 2000, HB 1881, c. 245, § 2, eff. November 1, 2000 (superseded document available); Amended by Law 2002, SB 1425, c. 455, § 2, emerg. eff. June 5, 2002 (superseded document available); Amended by Laws 2018, SB 649, c. 126, § 2, eff. November 1, 2018 (superseded document available).