Express Scripts Inc., St. Louis, Missouri, was awarded a $634,302,804 contract modification (P00019) to previously awarded contract HT940221C0007 for the Department of Defense TRICARE Pharmacy Benefit Program, which increased values of unexercised Option Periods 2-7. Pharmacy benefit services are available in all 50 states; Washington, D.C.; Guam; Puerto Rico; and the Virgin Islands. The program offers services at retail network pharmacies, authorized non-network retail pharmacies or delivery through the TRICARE Mail Order Pharmacy. The period of performance for this option is Jan. 1, 2024, to Dec. 31, 2024. Incremental funding will be applied using operations and maintenance funds. The Defense Health Agency Managed Care Contracting Division, Aurora, Colorado, is the contracting activity.