Ohio Rev. Code Ann. § 905.411
The director of agriculture may issue an order prohibiting the use of anhydrous ammonia equipment or an anhydrous ammonia system found not to comply with rules adopted under division (A) or (B) of section 905.40 of the Revised Code, as applicable. No person shall use the anhydrous ammonia equipment or system until a release in writing is issued by the director. The director shall not issue a release until both of the following have occurred: