The occurrence of any of the following events: (a) any Loan Party or ERISA Affiliate fails to make full payment when due of all amounts which any Loan Party or ERISA Affiliate is required to pay as contributions, installments, or otherwise to or with respect to a Pension Plan or Multiemployer Plan, and such failure could reasonably be expected to result in liability in excess of $2,500,000, (b) an accumulated funding deficiency or funding shortfall in excess of $2,500,000 occurs or exists, whether or not waived, with respect to any Pension Plan, individually or in the aggregate, (c) a Notification Event, which could reasonably be expected to result in liability in excess of $2,500,000, either individually or in the aggregate, or (d) any Loan Party or ERISA Affiliate completely or partially withdraws from one or more Multiemployer Plans and incurs Withdrawal Liability in excess of $2,500,000 in the aggregate, or fails to make any Withdrawal Liability payment when due.