A 'proper invoice' means one which is complete in all requirements necessary for processing it for payment in accordance with the terms of appropriate contracts and applicable state or federal statutes. Added by Laws 1983, p. 1168, H.J.R. No. 1010, § 3, emerg. eff. May 24, 1983. Amended by Laws 2009, c. 441, § 50, eff. July 1, 2009. Renumbered from § 41.4c of this title by Laws 2009, c. 441, § 64, eff. July 1, 2009.
Oklahoma Legal Code