This excerpt taken from the SIVB 10-K filed Mar 16, 2005.
Effective Date. The date upon which the provisions of this document become effective. The effective date of this amendment and restatement is January 1, 2005, unless stated otherwise. In general, the provisions of this document only apply to Participants who are Employees on or after the Effective Date. However, investment and distribution provisions apply to all Participants with Account balances to be invested or distributed after the Effective Date.