Mitutoyo America Corporation calibration services has begun phasing out the use of NIST traceability test numbers on calibration certificates but will separately supply these numbers to any organization that still uses NIST numbers. The growth and acceptance of ISO/IEC 17025 accredited calibration services has phenomenally improved the technical rigor of worldwide traceability and has made the use of NIST numbers obsolete. This change will have no impact on the accredited status of the calibration services of Mitutoyo America, and we will continue to send primary masters to NIST to ensure our calibration services maintain the highest level of quality with industry-leading capability. Our NIST numbers will be updated upon receipt of new calibration certificates from NIST. For questions, please contact email@example.com or call 888-648-8869.