SOLICITATION 36C25226B0019 AMENDMENT 0004 06/05/2026 To publish revised information regarding clause FAR 52.228-1 BID GUARANTEE (SEP 1996) Bid due date remains the same on June 17, 2026, at 12:30 PM local time (CST). No email bid submissions will be considered, only in person hard copy and mailed bid submissions will be accepted. Bid opening is still held in-person at the Great Lakes Acquisition Center (GLAC), Milwaukee, WI. Contractors will check-in at the front desk and escorted to a designated area. It is the responsibility of all contractors to arrive prior to the Bid Opening time, as the Bid Opening will start promptly at the time listed above. GLAC address is as follows: Great Lakes Acquisition Center (GLAC) 115 S. 84th Street, Suite 101 Milwaukee, WI 53214-1476