This excerpt taken from the NPSP 8-K filed May 18, 2009.
9.4 Form and Timing of Payment of Performance Units/Performance Shares. Payment of earned Performance Units/Performance Shares shall be as determined by the Board and as evidenced in the Award Agreement. Subject to the terms of this Plan, the Board, in its sole discretion, may pay earned Performance Units/Performance Shares in the form of cash or in Shares (or in a combination thereof) equal to the value of the earned Performance Units/Performance Shares at the close of the applicable Performance Period, or as soon as practicable after the end of the Performance Period. Any Shares may be granted subject to any restrictions deemed appropriate by the Board. The determination of the Board with respect to the form of payout of such Awards shall be set forth in the Award Agreement pertaining to the grant of the Award.