Increase to Multi-Award IDIQ ceiling for Basic Environmental Support Services

The Basic Environmental Support Services IV contract is being expanded to increase the ceiling for its multiple award IDIQ vehicle, restricted solely to four pre-qualified 8(a) contractors who already hold active BESS IV task orders. This limitation on competition is justified under 10 U.S.C. § 3204(a)(1) due to the urgent need for uninterrupted environmental compliance services at Aberdeen Proving Ground, Maryland, where only these four contractors possess the necessary security badging, approved health and safety plans, and immediate on-site mobilization capabilities. Any attempt to open the solicitation to new vendors would risk a catastrophic lapse in mission-critical environmental functions, making the existing pool the only viable source of support. A sources sought notice was published on SAM.gov on July 1, 2026, but no external vendors responded with the capacity to meet the immediate operational and security requirements, reinforcing the necessity of maintaining the contract within the current 8(a) pool. The solicitation, designated JA-26-InstTech-0366, falls under NAICS code 541620 and is managed by the Department of Defense through the W6QK Acc-Apg Director office, with primary point of contact Amy Bowen and secondary contact Samantha Hayes.