The requirement is for gas detection system maintenance at the NIST Gaithersburg Campus in Gaithersburg, MD. The contractor will provide all labor, materials, supplies, transportation, insurance, and equipment—including a 30-foot manlift—to service and calibrate specific CO, natural gas, oxygen depletion, and refrigerant sensors and transmitters. Work also includes servicing two gas control monitoring panels. Drawings and manuals are referenced for sensor locations and calibration information. No budget or timeline details are provided.