Ohio Rev. Code § 939.04: Composting of dead animals.

(A) A person who owns or operates an agricultural operation, or owns the animals raised by the owner or operator of an agricultural operation, and who wishes to conduct composting of dead animals resulting from the agricultural operation shall do both of the following:

(1) Participate in an educational course concerning composting conducted by OSU extension and obtain a certificate of completion for the course;

(2) Use the appropriate method, technique, or practice of composting established in rules adopted under division (E)(5) of section 939.02 of the Revised Code.

(B) A person who fails to comply with division (A) of this section shall prepare and operate under a composting plan required by the director of agriculture under division (A)(2) of section 939.02 of the Revised Code. If the person's proposed composting plan is disapproved by the supervisors of the appropriate soil and water conservation district under division (S)(3) of section 940.06 of the Revised Code, the person may appeal the plan disapproval to the director, who shall afford the person a hearing. Following the hearing, the director shall uphold the plan disapproval or reverse it. If the director reverses the disapproval, the plan shall be deemed approved.