Okla. Stat. tit. 47, § 6-115
Every driver license shall be issued for a period of four (4) years. The expiration date of the license shall be four (4) years from the last day of the month of issuance for an initial license, and shall be four (4) years from the last day of the month of expiration of the previous license for a renewed license. Every such driver license shall be renewable upon application and payment of the required fee. All applicants for renewals of driver licenses who have proven collision records or apparent physical defects may be required to take an examination as specified by the Commissioner of Public Safety.
Laws 1961, HB 556, p. 345, § 6-115, eff. September 1, 1961; Amended by Laws 1985, HB 1543, c. 45, § 61, eff. January 1, 1986; Amended by Laws 1985, HB 1393, c. 338, § 4, eff. January 1, 1986; Amended by Laws 1986, HB 1716, c. 73, § 1, emerg. eff. April 2, 1986; Amended by Laws 1989, HB 1162, c. 82, § 69, eff. November 1, 1989; Amended by Laws 1990, HB 1989, c. 219, § 22, eff. January 1, 1991; Amended by Laws 1991, SB 346, c. 342, § 2, emerg. eff. June 15, 1991; Amended by Laws 2000, HB 2100, c. 342, § 6, emerg. eff. July 1, 2000 (superseded document available).