This excerpt taken from the VVI DEF 14A filed Apr 4, 2007.
1.3 Duration of This Plan. Unless sooner terminated as provided herein, this Plan shall terminate ten (10) years from the Effective Date. After this Plan is terminated, no Awards may be granted but Awards previously granted shall remain outstanding in accordance with their applicable terms and conditions and this Plans terms and conditions. Notwithstanding the foregoing, no Incentive Stock Options may be granted more than ten (10) years after the earlier of: (a) adoption of this Plan by the Board, or (b) the Effective Date.