Ohio Revised Code Title IX. Agriculture Animals Fences § 915.18

(A) The refrigeration system for an establishment shall be equipped with accurate and reliable controls for the automatic maintenance of uniform temperatures as required in the various refrigerated rooms and shall be of adequate capacity to provide under extreme conditions of outside temperatures and under peak load conditions in the normal operations of the establishment, the following temperatures:

(B) This section does not prohibit such variations as may occur during short periods of time incidental to defrosting. For experimental purposes, the department of agriculture, upon application in writing, may authorize for a limited and prescribed period, the installation and use of refrigeration systems or methods which in the opinion of the department will result in improvement over present methods.