NIST logo
Dynamometer-Motors LAP

Eddy Current Dynamometer connected to 100 hp motor under test. Courtesy of Advanced Energy.

Tuft Bind Set Up for Carpet

ASTM D1335 Test Method for tuft bind of pile yarn floor coverings. Courtesy of Shaw Industries Group.

Construction LAP PT samples

AMRL and CCRL operate proficiency sample programs required by NVLAP's construction LAP.

World Accreditation Day 2014

June 9th 2014 will mark World Accreditation Day, a global initiative jointly established by the International Accreditation Forum (IAF) and International Laboratory Accreditation Cooperation (ILAC) to raise awareness of the importance of accreditation-related activities. This year will focus on the role accreditation plays in providing confidence in the provision of energy.

ILAC and IAF recently released a promotional film to support World Accreditation Day. It is a short animation that shows how accreditation impacts our daily lives. The film can be viewed on the ILAC and IAF YouTube channel. Captions are available in 25 different languages. Contact NVLAP for more information about how the accreditation of testing and calibration laboratories delivers confidence in everyday life.


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 17025:2005.


General inquiries:
301-975-4016 Telephone
301-926-2884 Facsimile

100 Bureau Drive, M/S 2140
Gaithersburg, MD 20899-2140


Web URL: