§ 4233.16 Coordination of benefits under original plan and successor plan.

(a) Successor plan benefits. Subject to the limitations contained in section 4022A of ERISA, the only benefit amounts payable under a successor plan are successor plan benefits as defined in § 4233.2.

(b) Guarantee of successor plan benefit. When a participant's or beneficiary's benefit is partially or wholly transferred to a successor plan, the PBGC guarantee applicable to such benefit becomes payable under the successor plan. The benefit remaining in the original plan as of the effective date of the partition, if any, is not subject to a new guarantee, and any increase in the PBGC guarantee amount payable under the original plan will arise solely, if at all, due to an increase in the accrued benefit under a plan amendment following the effective date of the partition, or an additional accrual attributable to service after the effective date of the partition.