This chapter does not provide reimbursements for: Site rehabilitation costs for residential heating oil tank systems incurred before October 1, 2000; Site rehabilitation costs that result from a spill, release, or discharge of oil originating from a source other than a residential heating oil tank system; Costs resulting from: Residential heating oil tank system closures in place, upgrades, or replacements; or Retrofitting of a residential heating oil tank or associated piping; Except as otherwise provided in Regulation .05 of this chapter, costs resulting from a residential heating oil tank system removal; A third-party claim; or Site rehabilitation costs that have been paid or are payable under an insurance policy.