Navy Primary Standards Lab

NPSL Cover Picture


The Navy Primary Standards Laboratory, a division of NAVAIR and the Fleet Readiness Center Southwest, provides calibration services at a level second only to those of the National Institute of Standards and Technology. Our mission is to serve Navy metrology worldwide. Browse our website to learn more about who we are, what we do, request a quote for calibration services, or read about the latest news, events, and research from our department.

The Navy Primary Standards Lab (NPSL) supports the Department of the Navy (DON) as its highest echelon standards laboratory.

NPSL is primarily responsible for:

  • Servicing all Navy and Marine Corps calibration laboratories and facilities, other government facilities, DOD contractors, and foreign government measurement laboratories.
  • Maintaining and disseminating the most accurate units of measurement in the Navy METCAL program.
  • Developing and maintaining precision measurement systems of the required accuracy to effectively provide measurement traceability from national standards.