This is a sources sought notice, not a solicitation, to identify qualified vendors for a Vehicle Mounted Diesel Exhaust Filtration System. The system must be vehicle-mounted, direct source diesel particulate filters for Air Force ARFF vehicles (1996-2014), with installation required at Pease ANGB, Newington, NH 03803. Responses are due by 4:00 PM EST on 28 May 2026. No budget amount is specified. Interested parties must demonstrate their capability and provide company details, business size, and product information.