NASA’s Metrology and Calibration Working Group (MCWG) in the Office of Safety and Mission Assurance (OSMA) convened its annual Technical Interface Meeting on July 25, 2025, at Glenn Research Center. Held in conjunction with the 2025 National Conference of Standards Laboratories International (NCSLI) Metrology Workshop and Symposium, this gathering brought together metrologists and calibration professionals from across NASA’s centers, including Langley, Glenn, Stennis, Kennedy, Marshall, Armstrong, Johnson and White Sands Test Facility.

The meeting served as a platform to discuss agencywide calibration strategies, emerging standards and collaborative initiatives. In attendance were leaders and technical experts advancing NASA’s calibration policies and sharing best practices.

During the NCSLI Metrology Workshop and Symposium, NASA representatives actively participated in a series of NCSLI committee meetings. NASA maintains a voting seat on the American National Standards Institute (ANSI)/NCSLI Z540 Committee, which oversees calibration standards related to traceability, uncertainty and documentation procedures. In parallel, NASA was deeply engaged in the Metrology Practices Committee, focused on developing recommended practices across industries; the Inter-lab Comparison Committee, which organizes proficiency testing and round‑robin comparisons to support measurement proficiency; the Accreditation Resources Committee, devoted to guidance and tools for laboratory accreditation; and the Intrinsic Standards Committee, which explores the role of intrinsic reference standards (i.e., material‐based standards requiring no external calibration) related to their reproducible properties.

Chaired by volunteers from member institutions, NCSLI committees meet quarterly—including during annual in-person sessions like Committee Week or Committee Month—and enable agencies such as NASA to shape national and international calibration policy and standards development. NASA’s involvement ensures alignment between federal Safety and Mission Assurance requirements and broader measurement science advances.

“Our technical interface meeting always brings such immense value to our working group,” said Jaime Day, OSMA Executive Liaison to the MCWG and Metrology and Calibration Program Manager at Langley Research Center. “It provides us the platform to openly discuss topics pertaining to measurement science, ultimately benefiting each Center’s metrology programs. We are already looking forward to planning for our next exchange, which will be the 50th year the MCWG has held this event.”

Through knowledge exchanges in MCWG and NCSLI committees, NASA continues to lead in metrology practices, interlaboratory comparisons, accreditation frameworks and intrinsic standards, supporting metrologists across federal and industrial sectors.

To learn more about the MCWG, please visit the Metrology and Calibration page on the OSMA website.