Ohio Rev. Code Ann. § 3753.04
(B) The owner or operator of a stationary source at which a covered process is present is subject to program 1 requirements established under division (E) of this section if the covered process meets all of the following conditions:
(1) For the five years prior to the submission of a risk management plan, the process has not had an accidental release of a regulated substance where exposure to the substance, its reaction products, overpressure generated by an explosion involving the substance, or radiant heat generated by a fire involving the substance led to any of the following occurrences off-site:
(D) The owner or operator of a stationary source at which a covered process is present is subject to program 3 requirements established under division (G) of this section if the covered process does not meet the conditions established under division (B) of this section and either of the following conditions is met:
(E) The owner or operator of a stationary source at which one or more covered processes are present that meet the conditions established under division (B) of this section shall comply with all of the following program 1 requirements:
(F) The owner or operator of a stationary source at which one or more covered processes are present that meet the conditions established under division (C) of this section shall comply with all of the following program 2 requirements:
(G) The owner or operator of a stationary source at which one or more covered processes are present that meet the conditions established under division (D) of this section shall comply with all of the following program 3 requirements: