Restrictions Applicable to Units. Neither this Award nor the Units subject to this Award may be sold, assigned, transferred, exchanged or encumbered, voluntarily or involuntarily, other than a transfer upon your death in accordance with your will, by the laws of descent and distribution or pursuant to a beneficiary designation submitted in accordance with the Plan. Following any such transfer, this Award shall continue to be subject to the same terms and conditions that were applicable to the Award immediately prior to its transfer. Any attempted transfer in violation of this Section 3 shall be void and without effect. The Units and your right to receive Shares in settlement of any Units under this Agreement shall be subject to forfeiture except to extent the Units have been earned and thereafter vest as provided in [Section 5a].