Okla. Stat. tit. 59, § 46.35
It shall be unlawful for a landscape architect to accept or to receive compensation, directly or indirectly, from any person other than the client in connection with the reparation, alteration or construction of a project in relation to which the landscape architect shall have accepted employment in any manner.
Laws 1980, HB 1100, c. 314, § 30, emerg. eff. July 1, 1980; Renumbered from 59 O.S. § 45.43 by Laws 1986, HB 1879, c. 287, § 32, emerg. eff. July 1, 1986.