The Naval Air Warfare Center at China Lake intends to award a sole source firm fixed price contract to Occupational Services, Inc. (OSI) for meter services, including a base year plus four option years. OSI is the only California-licensed provider of on-site ISO 17025 calibration testing for radiation detection instruments. Interested parties must submit a capability statement by July 28, 2026, at 4:00 PM PMT to demonstrate their ability to perform the work. All vendors must have an active SAM.gov registration, and contractors need Defense Logistics Information Services certification to access Controlled Unclassified Information. The performance location is China Lake, California, but no budget amount is specified.