The  Board or the Compensation Committee of the Board or, to the extent permitted by Board resolution, any delegate of the Board or Compensation Committee, may amend, modify, suspend or discontinue this Plan at any time; provided, however, that no such amendment, modification, suspension or discontinuance shall have the effect of reducing a Participant’s Deferral Account balance or postponing the time when a Participant is entitled to receive a distribution of his or her Deferral Account balance.