A Participant’s rights in a Stock Award shall be forfeitable or otherwise restricted for such period of time, if any, or subject to such conditions as may be set forth in the Agreement. The period of restriction of a Stock Award granted to a Participant who is not an Outside Director shall be at least three years; provided , however , that the minimum period of restriction for such Participant shall be at least one year in the case of a Stock Award that will become transferable and nonforfeitable on account of the satisfaction of performance objectives prescribed by the Administrator.