31 Pa. Code § 162.4
(a) An insurer subject to this chapter may not, for reinsurance ceded, reduce liability or establish an asset in financial statements filed with the Department if, by the terms of the reinsurance agreement, in substance or effect, one or more of the following conditions exist:
(7) The treaty does not transfer all of the significant risk inherent in the business being reinsured. The following table identifies for a representative sampling of products or type of business, the risks which are considered to be significant. For products not specifically included, the risks determined to be significant shall be consistent with the following table:
(8) The credit quality, reinvestment or disintermediation risk is significant for the business reinsured and the ceding insurer does not, other than for the classes of business excepted in subparagraph (i), either transfer the underlying assets to the reinsurer or legally segregate the assets in a trust or escrow account or otherwise establish a mechanism satisfactory to the Commissioner which legally segregates, by contract or contract provision, the underlying assets.
(ii) If the ceding insurer elects to hold the assets supporting the reserves for the classes of business stated in subparagraph (i) or for classes of business which do not represent a significant risk as noted in subparagraph (i), the determination of the modified coinsurance reserve interest rate adjustment shall conform to a formula which reflects the ceding insurer’s investment earnings and incorporates all realized and unrealized gains and losses reflected in the statutory statement. The following is an acceptable formula: Rate = 2 (I +CG)
X +Y - I - CG
| Where:…I = | the net investment income |
| CG = | realized and unrealized capital gains less realized and unrealized capital losses |
| X = | the current year cash and invested assets plus investment income due and accrued less borrowed money |
| Y = | the same as X but for the prior year |