This excerpt taken from the SAI 10-K filed Mar 30, 2009.
5.1 Committee to Maintain Accounts. The Committee shall open and maintain a separate Account for each Participant to record the Deferrals made by the Participant and the number of Share Units credited as a result of the Deferrals.
5.2 Additional Accounting Procedures. The Committee shall establish and may amend from time to time additional accounting procedures for the purpose of making allocations, distributions, valuations and adjustments to Accounts, and to allocate Trust earnings expenses and losses to such accounts. A Participant or Beneficiary shall have no contractual or other right to have a particular accounting procedure or convention apply, or continue to apply, and the Committee shall be free to alter any such procedure or convention without notice or obligation to any Participant or Beneficiary.
5.3 Limitation on Benefits. Benefits payable to a Participant or Beneficiary under the Plan shall be limited to the vested Account balance credited to such Participant or Beneficiary.
5.4 Vesting of Account Balances. A Participants Account balance shall be one hundred percent (100%) vested except with respect to the portion of the Account balance attributable to vesting bonuses awarded under the Bonus Compensation Plan. Such portion of a Participants Account balance shall become vested (and the nonvested portion forfeited) at the time or times the bonus would have become vested (and the nonvested portion forfeited) under the Bonus Compensation Plan without regard to deferral under this Plan. The Share Units represented by such forfeited portion shall be returned to the Company or reallocated in accordance with the Committees directions and the terms of the Trust.