If an extremely hazardous substance first becomes present at a facility on or after the effective date of this section in an amount that exceeds the threshold planning quantity established for the substance in rules adopted under division (B)(1)(a) of section 3750.02 of the Revised Code, or if, after rules have been adopted under division (C)(5) of section 3750.02 of the Revised Code, an extremely hazardous substance becomes present at a facility in an amount that exceeds the threshold planning quantity for the extremely hazardous substance, the owner or operator of the facility shall notify the emergency response commission and the local emergency planning committee of the emergency planning district in which the facility is located that the facility is subject to this section and section 3750.04 of the Revised Code within sixty days after first acquiring the substance. If rules are adopted under division (C)(5) of section 3750.02 of the Revised Code, or if rules adopted under division (B)(1)(a) or (C)(5) of that section are amended, and a facility has present an extremely hazardous substance in an amount exceeding the threshold planning quantity for the extremely hazardous substance established in those rules or amended rules, the owner or operator of the facility shall notify the commission and the local emergency planning committee of the emergency planning district in which the facility is located that the facility is subject to this section and section 3750.04 of the Revised Code within sixty days after adoption or amendment of the rules. If the owner or operator had not previously been required to select a facility emergency coordinator under this division, he shall select one and provide his name to the committee within sixty days after first acquiring the extremely hazardous substance or within sixty days after adoption or amendment of the rule, as appropriate.
R.C. § 3750.05