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National Legal Metrology Working Groups

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Credit: Adobe

NIST OWM leads and manages a series of national legal metrology and weights and measures working groups, including three U.S. National Work Groups (USNWG) administered under individual Charters and Operational Guidelines.  The national working groups provide a forum for stakeholder engagement in technical discussions toward the development of uniform and appropriate U.S. legal metrology standards and, where possible, for harmonization with other related national and international standards. 

Current working groups include: 

Past working groups include: 

Please visit each working group page for further details regarding operational guidelines and charters (for USNWGs), meeting agendas and summaries, and objectives and anticipated deliverables.

Created March 11, 2022, Updated December 6, 2024