Okla. Stat. tit. 2 § 8-31
No person shall use the term "certified", alone or with other words, or use any other term or words which suggest certification by a designated inspection agency, orally or in writing, relative to any agricultural or vegetable seeds, any tubers for seeding purposes, or plants or plant parts, sold or advertised for sale in Oklahoma, except as provided by this subarticle. If the seeds, tubers, plants, or plant parts were produced in another state or foreign country, certification by the legally constituted certification officials of a state, country, or of the United States, shall be sufficient. Certification in Oklahoma shall be by the Agricultural Experiment Station and the Agricultural Extension Service of the Oklahoma State University, Division of Agricultural Sciences and Natural Resources, or by an agency which they designate.
Okla. Stat. tit. 2, § 8-31