1. Whether the Pension Benefit Guaranty Corporation (PBGC) can—through the auspices of imposing "reasonable conditions" on multiemployer pension plans (MEPPs) under 29 U.S.C. § 1432(m)(1)—direct MEPPs to exclude certain plan assets from the unfunded-vested-benefits formula in 29 U.S.C. § 1393(c) when calculating an employer's withdrawal liability, even though that statutory formula expressly includes plan assets as an input.

2. Whether MEPPs can calculate a withdrawing employer's allocable unfunded vested benefits and annual withdrawal-liability payments through methods that deviate from statutory requirements without obtaining the PBGC's approval.

Whether the Pension Benefit Guaranty Corporation can impose reasonable conditions on multiemployer pension plans to exclude certain plan assets from the unfunded-vested-benefits formula when calculating an employer's withdrawal liability, and whether multiemployer pension plans can calculate withdrawing employer's allocable unfunded vested benefits through methods that deviate from statutory requirements without PBGC approval