Subject to Section 8, the Award shall vest and become nonforfeitable with respect to one-third of the total number of the Stock Units on each of the first, second and third anniversaries of the Award Date. Notwithstanding the foregoing, no portion of the Award will vest unless the Corporation’s Normalized FFO Per Share, as defined in the Corporation’s [____] Cash Incentive Plan, with respect to the [____] calendar year equals or exceeds $[____].