(a) An insurer may take credit for reserves on risks ceded to a reinsurer to the extent reinsured, except that no credit shall be allowed, as an asset or as a deduction from liability, to any ceding insurer for reinsurance unless the reinsurance is payable by the assuming insurer on the basis of the liability of the ceding insurer under the contracts reinsured without diminution because of the insolvency of the ceding insurer not unless under the contract of reinsurance the liability for such reinsurance is assumed by the assuming insurer or insurers as of the same effective date.
(b) A reinsurance agreement may provide that the liquidator or receiver or statutory successor of an insolvent ceding insurer shall give written notice of the pendency of a claim against the insolvent ceding insurer on the policy or bond reinsured within a reasonable time after such claim is filed in the insolvency proceeding and that during the pendency of such claim any assuming insurer may investigate such claim and interpose, at its own expense, in the proceeding where such claim is to be adjudicated, any defense or defenses which it may deem available to the ceding insurer or its liquidator or receiver or statutory successor. The expense thus incurred by the assuming insurer shall be chargeable, subject to court approval, against the insolvent ceding insurer as a part of the expense of liquidation to the extent of a proportionate share of the benefit which may accrue to the ceding insurer solely as a result of the defense undertaken by the assuming insurer.
(c) Where two or more assuming insurers are involved in the same claim and a majority in interest elect to interpose to such claim, the expense shall be apportioned in accordance with the terms of the reinsurance agreement as though such expense had been incurred by the ceding insurer.