(a) If necessary or appropriate to assure that the public health or safety is not threatened, the Office of State Fire Marshal shall have authority to: (1)(A) provide notice to the owner or operator, or both, of an underground storage tank whenever there is a release or substantial threat of a release of petroleum or regulated substances from such tank. Such notice shall include the identified emergency action and an opportunity for the owner or operator, or both, to perform the emergency action; or(B) undertake emergency action whenever there is a release or substantial threat of a release of petroleum or regulated substances from an underground storage tank.(2) If notice has been provided under clause (A) of paragraph (1) of this subsection, the Office shall have the authority to require the owner or operator, or both, of an underground storage tank to undertake emergency action whenever there is a release or substantial threat of a release of petroleum or regulated substances from such tank.(3) The emergency action undertaken or required under this Section shall be such as may be necessary or appropriate to assure that the public health or safety is not threatened.(b) In accordance with constitutional limitations, the Office shall have authority to enter at all reasonable times upon any private or public property for the purpose of taking emergency action whenever there is a release or substantial threat of a release of petroleum or regulated substances from an underground storage tank.(c) The Office shall require emergency action under paragraph (2) of subsection (a) through issuance of an Administrative Order. Such an order shall be served by registered or certified mail or in person and may order emergency action. Any person served with such an order may appeal such order by submitting in writing any such appeal to the Office within 10 days of the date of receipt of such order. The Office shall conduct an administrative hearing governed by The Illinois Administrative Procedure Act and enter an order to sustain, modify or revoke such order. Any appeal from such order shall be to the circuit court of the county in which the violation took place and shall be governed by the Administrative Review Law.(d) Neither the State, the State Fire Marshal, nor any State employee shall be liable for any damages or injury arising out of or resulting from any action taken under Section 6.