Okla. Stat. tit. 18, § 441-407
(d) Upon filing, an amendment of the articles of organization or other record containing an amendment of the articles which has been properly adopted by the members is effective as provided in subsection (c) of Section 23 of this act.
Historical Data Laws 2009, HB 2148, c. 68, § 39, eff. January 1, 2010.