This excerpt taken from the MDT 10-Q filed Mar 4, 2008.
AMENDMENT, TERMINATION AND DURATION
8.1. Plan Amendment or Suspension. The Plan may be amended or suspended in whole or in part at any time and from time to time by the Committee.
8.2. Plan Termination. This Plan shall terminate upon the adoption of a resolution of the Committee terminating the Plan.
8.3. Duration of the Plan. The Plan shall commence on the date specified herein, and subject to Sections 8.1 and 8.2 (regarding the Boards right to amend or terminate the Plan, respectively), shall remain in effect thereafter.