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Physical Measurement Laboratory

Office of Weights and Measures

OWM Technical Analysis

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The OWM Technical Analysis and associated Executive Summary is a set of documents prepared by the NIST Office of Weights and Measures (OWM) to assist the weights and measures community as it deliberates on items before the National Council on Weights and Measures (NCWM) Annual and Interim meetings. 

NCWM MeetingDates

S&T Analysis*

L&R Analysis*

Additional Analysis

2026 AnnualJuly 26 - 30, 2026S&T Full AnalysisS&T Exec SummaryL&R Full AnalysisL&R Exec Summary 
2026 InterimJanuary 11 – 14, 2026S&T Full AnalysisS&T Exec SummaryL&R Full AnalysisL&R Exec Summary 
2025 AnnualJuly 13 – 17, 2025S&T Full AnalysisS&T Exec SummaryL&R Full AnalysisL&R Exec Summary 
2025 InterimJanuary 12 – 15, 2025S&T Full AnalysisS&T Exec SummaryL&R Full AnalysisL&R Exec Summary 
2024 AnnualJuly 14 - 18, 2024S&T Full AnalysisS&T Exec SummaryL&R Full AnalysisL&R Exec Summary 
2024 InterimJanuary 7 – 10, 2024S&T Full AnalysisS&T Exec SummaryL&R Full AnalysisL&R Exec Summary 
2023 AnnualJuly 30 – August 3, 2023S&T Full AnalysisS&T Exec SummaryL&R Full AnalysisL&R Exec SummaryModification to Item EVF-23.6
2023 InterimJanuary 8 – 11, 2023S&T Full AnalysisS&T Exec SummaryL&R Full AnalysisL&R Exec Summary 
2022 AnnualJuly 10 – 14, 2022S&T Full AnalysisS&T Exec SummaryL&R Full AnalysisL&R Exec SummaryItem EVF-22.1 Priority Voting Item

*Separate analyses are prepared for and submitted to the NCWM’s Laws and Regulations (L&R) Committee and Specifications and Tolerances (S&T) Committee prior to each NCWM Interim and Annual Meeting. The information available is current to the date the analysis denoted in the publication header.

Metrology and Weights and measures
Created April 4, 2022, Updated June 15, 2026
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