This opportunity is for a firm-fixed-price contract to provide annual onsite preventive maintenance, testing, and calibration services for a government-owned AJT Equipment test bed located in Groton, CT. The contract includes a base year and four one-year option periods, with an estimated performance period from August 1, 2026, to July 31, 2031. Offerors must be a 100% Total Small Business Set-Aside and demonstrate active ISO/IEC 17025 accreditation and capability to perform testing per ASTM E4-16. No specific budget amount is mentioned in the description. The location for performance is NSSF Shop 72D, Building 107, Grunnion Avenue, Groton, CT 06349.