Ohio Revised Code Title XXXVII. Health Safety Morals § 3781.31

(A) When a utility marks its underground utility facilities in accordance with section 3781.29 of the Revised Code, the utility may request that the excavator provide prior notice to the utility of the actual commencement of the excavation. An excavator that receives a request for notice under this division shall provide the notice to the utility at least one full working day prior to the commencement of excavation. The excavator may make this notice by telephone.

(B) If the markings of underground utility facilities made under section 3781.29 of the Revised Code are destroyed or removed before excavation is completed, the excavator shall notify the utility through the protection service that the markings have been destroyed or removed, and the utility shall remark the facilities in accordance with section 3781.29 of the Revised Code.