Amendment No. 1 Exhibit 10.a --------------- CROWN CORK & SEAL COMPANY, INC. ------------------------------- 1990 STOCK-BASED INCENTIVE COMPENSATION PLAN -------------------------------------------- Pursuant to the power reserved to it in Section 11 of the Crown Cork & Seal Company, Inc. 1990 Stock-Based Incentive Compensation Plan ("Plan"), Crown Cork & Seal Company, Inc. hereby amends the Plan, effective September 21, 1998, as follows: 1. SECTION 8.08 is amended in its entirety to read as follows: "8.08 Termination by Reason of Retirement or Disability: ------------------------------------------------- (A) If a Holder's employment by the Company or a Subsidiary or Affiliate terminates by reason of disability (as determined by the Committee) any Option held by such Holder may thereafter be exercised by the Holder (or, where appropriate, the Holder's legal representative), to the extent it was exercisable at the time of termination or on such accelerated basis as the Committee may determine at or after grant, for a period of 3 months from the date of such termination of employment or until the expiration of the stated term of the Option, whichever period is shorter. (B) If a Holder's employment by the Company or a Subsidiary or Affiliate terminates by reason of Retirement, any Option held by such Holder may thereafter be exercised by the Holder (or, where appropriate, the Holder's legal representative) to the extent it was exercisable at the time of the Holder's Retirement or on such accelerated basis as the Committee may determine at or after grant, for a period of up to five years (as specified by the Committee), but only three months in the case of an Incentive Stock Option, from the date of the Holder's Retirement or until the expiration of the stated term of the Option, whichever period is shorter." * * * * * * To record the adoption of this Amendment No. 1 to the Plan, Crown Cork & Seal Company, Inc. has authorized its officers to affix its corporate name and seal effective as of the day and year first above written. CORPORATE SEAL CROWN CORK & SEAL COMPANY, INC. Attest: By: /s/ Alan W. Rutherford Title: Executive Vice President and Chief Financial Officer