Sustainable Building Solutions LLC, Washington, D.C., is awarded a $45,000,000 firm-fixed-price modification to a previously awarded contract (N40080-21-D-0015). This modification provides for the exercise of Option 1 and increases the maximum dollar value of an indefinite-delivery/indefinite-quantity contract for roofing repairs and replacement at Naval Air Station Patuxent River, Maryland; Naval Support Facility (NSF) Indian Head, Maryland; and NSF Dahlgren, Virginia. Work will be performed in Patuxent River, Maryland (40%); Indian Head, Maryland (30%); Annapolis, Maryland (15%); and Dahlgren, Virginia (15%). Work is expected to be completed by July 2026. The total contract amount after exercise of this option will be $18,000,000. Fiscal 2022 operation and maintenance (Navy) funds in the amount of $9,000,000 are obligated on this award and will expire at the end of the current fiscal year. The Naval Facilities Engineering Systems Command, Washington, Washington, D.C., is the contracting activity.