Okla. Stat. tit. 18, § 441-203
(3) If the record specifies a delayed effective date but not an effective time, at 12:01 a.m. on the earlier of:
(4) If the record specifies an effective time and a delayed effective date, at the specified time on the earlier of:
(B) the ninetieth day after the record is filed.
Historical Data Laws 2009, HB 2148, c. 68, § 23, eff. January 1, 2010.