Charitable Pension Flexibility Act of 2013 - Amends the Pension Protection Act of 2006, as amended by the Preservation of Access to Care for Medicare Beneficiaries and Pension Relief Act of 2010, to allow the sponsor of a multiple-employer defined benefit pension plan to elect for a plan to cease to be treated as an eligible charity plan for plan years beginning after December 31, 2013. Permits revocation of such an election, however, only with the consent of the Secretary of the Treasury.
Allows a plan sponsor also to elect to apply specified requirements with respect to the shortfall amortization base in minimum funding standards for such plans.