Okla. Stat. tit. 63, § 63-427.12: Restrictions on growing medical marijuana

A. All medical marijuana grown by medical marijuana patient

license holders or caregivers may only be grown on real property

owned by the patient license holder or on real property for which

the patient license holder has the property owner's written

permission to grow marijuana on the property.

B. All medical marijuana plants grown by a patient or caregiver

shall be grown so that the marijuana is not accessible to a member

of the general public. No marijuana plants shall be visible from

any street adjacent to the property. For purposes of this section,

"visible" means viewable by a normal person with 20/20 eyesight

without the use of any device to assist in improving viewing

distance or vantage point.

C. It is expressly prohibited to operate extraction equipment

or utilize extraction processes if the equipment or process utilizes

butane, propane, carbon dioxide or any potentially hazardous

material in a residential property.