B-21 West Alert Apron Environmental Protection Shelters at Ellsworth Air Force Base (AFB), South Dakota (SD)

About this opportunity

Amendment 3: The purpose of this amendment is as follows: 1. The proposal due date is extended to 03/31/26 at 2:00 PM CST. 2. Revised 00 21 00 (see 00 21 00, dated 03-09-26), 3. Revised 00 22 00 (see Summary of Changes, dated 03-09-26). All other terms or conditions remain the same.