As used in this section and sections 22a-449c to 22a-449m, inclusive, 22a-449p and 22a-449r to 22a-449t, inclusive:

(1) “Petroleum” means crude oil, crude oil fractions and refined petroleum fractions, including gasoline, kerosene, heating oils and diesel fuels;

(2) “Release” means any spilling, leaking, pumping, pouring, emitting, emptying, discharging, injecting, escaping, leaching, dumping or disposing of petroleum from any underground storage tank or underground storage tank system;

(3) “Responsible party” means (A) for an application or request for payment or reimbursement received by the commissioner before July 1, 2005, or for a determination made by the commissioner before July 1, 2005, regarding a person‘s status as a responsible party or a third party with respect to a specific release or suspected release, any person who owns or operates an underground storage tank or underground storage tank system from which a release or suspected release emanates, (B) for an application or request for payment or reimbursement received by the commissioner on or after July 1, 2005, any person who (i) at any time owns, leases, uses or has an interest in the real property on which an underground storage tank system is or was located from which there is or has been a release or suspected release, regardless of when the release or suspected release occurred, or whether such person owned, leased, used or had an interest in the real property at the time the release or suspected release occurred, or whether such person owned, operated, leased or used the underground storage tank system from which the release or suspected release occurred, (ii) at any time owns, leases, operates, uses, or has an interest in an underground storage tank system from which there is or has been a release or suspected release, regardless of when the release or suspected release occurred or whether such person owned, leased, operated, used or had an interest in the underground storage tank system at the time the release or suspected release occurred, or (iii) is affiliated with a person described in clause (i) or (ii) of this subparagraph through a direct or indirect familial relationship or any contractual, corporate or financial relationship;

(4) “Underground storage tank” means a tank or combination of tanks, including underground pipes connected thereto, used to contain an accumulation of petroleum, whose volume is ten per cent or more beneath the surface of the ground, including the volume of underground pipes connected thereto;

(5) “Underground storage tank system” means an underground storage tank and any associated ancillary equipment and containment system;

(6) “Residential underground heating oil storage tank system” means (A) an underground storage tank system used in connection with residential real property composed of four residential units or fewer, or (B) a storage tank system and any associated ancillary equipment used in connection with residential real property composed of four residential units or fewer;

(7) “Person” means any individual, firm, partnership, association, syndicate, company, trust, corporation, limited liability company, municipality, agency or political or administrative subdivision of the state, or other legal entity of any kind;

(8) “Municipal applicant” means an applicant that is a town, city or borough, whether consolidated or unconsolidated;

(9) “Small station applicant” means an applicant who owned, operated, leased, used, or had an interest in, at the time such applicant’s first application was received by the underground storage tank petroleum clean-up program, five or fewer separate parcels of real property, within or outside of the state, on which an underground storage tank system was or had been previously located;

(10) “Mid-size station applicant” means an applicant who owned, operated, leased, used, or had an interest in, at the time such applicant’s first application was received by the underground storage tank petroleum clean-up program, six to ninety-nine separate parcels of real property, within or outside of the state, on which an underground storage tank system was or had been previously located;

(11) “Large station applicant” means an applicant who owned, operated, leased, used, or had an interest in, at the time such applicant’s first application was received by the underground storage tank petroleum clean-up program, one hundred or more separate parcels of real property, within or outside of the state, on which an underground storage tank system was or had been previously located;

(12) “Other applicant” means an applicant who is not a municipal applicant or a small, mid-size or large station applicant;

(13) “Applicant” means any person who has filed an application;

(14) “Application” means any request or application for payment or reimbursement, including, but not limited to, any supplemental application, from the underground storage tank petroleum clean-up program established pursuant to § 22a-449c;

(15) “Affiliate” or “a person affiliated” means a person that directly or indirectly through one or more intermediaries owns or controls, is owned or controlled by, or is under common control with an applicant;

(16) “Control”, “controlling”, “controlled by” or “under common control with” means the possession, directly or indirectly, of the power to direct or cause the direction of the management or the policies of a person, whether through the ownership of voting securities, by contract or otherwise. For the purposes of this definition, the beneficial ownership of ten per cent or more of the voting stock of a corporation creates a presumption of control; and

(17) “Commissioner” means the Commissioner of Energy and Environmental Protection or the commissioner’s designee.