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National Voluntary Laboratory Accreditation Program (NVLAP)

The National Voluntary Laboratory Accreditation Program (NVLAP) provides third-party accreditation to testing and calibration laboratories in response to legislative actions or requests from government agencies or private-sector organizations. NVLAP-accredited laboratories are assessed against the management and technical requirements published in the International Standard, ISO/IEC 17025:2017.

News & Announcements


ILAC has extended the transition period for ISO/IEC 17025:2017 from November 30, 2020 to June 1, 2021.  Further information is available at

At this time, all applications for NVLAP accreditation requiring an onsite assessment will continue to be assessed against the requirements of ISO/IEC 17025:2017. 

Please contact us at if you have any questions.