Okla. Stat. tit. 2, § 2-8-93: Exemptions

A. The provisions of the preceding section shall not apply to

weed-infested material in storage in, or consigned to, a processing

establishment for cleaning or processing, or weed-infested material

transported by producers from their farms to an elevator, or from

farm-to-market. Any labeling, invoice, or other representation

which may be made with respect to the uncleaned or unprocessed weed-

infested material shall be subject to the provisions of this

subarticle.

B. No unprocessed weed-infested material shall be transported

by any person over or along any road or highway in this state or by

any railroad operating in this state, unless the same is carried or

transported in a vehicle or containers adequate to prevent the

leaking or scattering of the weed-infested material. In no instance

shall weed-infested material be sold to the ultimate consumer

(including a livestock feeder) until the material shall have been

processed to destroy the viability of the noxious weed-infested

content.