Approval of a plan or revision, or portion thereof, under comparable provisions of the "Federal Coal Mine Safety and Health Act of 1969," 83 Stat. 742, 30 U.S.C.A. 801, as amended or reenacted, or regulations adopted thereunder, shall be a sufficient basis for approval of the plan or revision, or portion thereof, by the chief unless the chief makes a specific written explanation and findings as to why the federally approved plan, revision, or portion thereof does not meet the requirements of the mining laws of this state and as to why a variance from the federally approved plan is reasonably necessary to meet the requirements of this state's mining laws.
The chief shall make a final decision on a plan or revision, including review of any additional information the chief requests, no later than fourteen days after the operator's initial submission of the plan or revision. Approval of completed plans or revisions shall not be unreasonably withheld.
R.C. §1567.69