Each Option and SAR shall vest and become exercisable according to the terms and conditions as determined by the Administrator. Except as otherwise determined by the Administrator, Options and SARs shall vest ratably in equal annual installments over a three-year period, on each of the first three anniversaries of the grant date. Except as otherwise determined by the Administrator, SARs granted in tandem with an Option shall become vested and exercisable on the same date or dates as the Options with which such SARs are associated vest and become exercisable. SARs that are granted in tandem with an Option may only be exercised upon the surrender of the right to exercise such Option for an equivalent number of Shares, and may be exercised only with respect to the Shares for which the related Option is then exercisable. The Administrator shall specify the manner of and any terms and conditions of exercise of an exercisable Option or SAR, including but not limited to net-settlement, delivery of previously owned stock and broker-assisted sales.