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National Voluntary Laboratory Accreditation Program (NVLAP) Procedures and General Requirements



Dana S. Leaman, Bethany E. Hackett


NIST Handbook 150 contains the general procedures and requirements under which NVLAP operates as an unbiased third-party accreditation body. This handbook contains the general requirements that testing and calibration laboratories must meet to demonstrate that they operate an appropriate management system, are technically competent, and are able to generate technically valid results.
Handbook (NIST HB) - 150 2020 Edition
Report Number
150 2020 Edition


accreditation, calibration, conformity assessment, ISO/IEC 17025, laboratory management, NVLAP, standards, testing


Leaman, D. and Hackett, B. (2020), National Voluntary Laboratory Accreditation Program (NVLAP) Procedures and General Requirements, Handbook (NIST HB), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 20, 2024)


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Created August 3, 2020, Updated October 12, 2021