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NIST OWM produces publications, technical guidance documents, and documentary standards on legal metrology, laws, regulations, measurement devices, specifications, and tolerances. In addition, we provide resources for the NCWM membership and stakeholders to assist in the deliberations and historical record of the items under consideration in the NCWM Publication 15 (Interim meeting) and the NCWM Publication 16 (Annual meeting).
1. OWM Technical Analysis. The NIST OWM Technical Analysis is a series of documents prepared to assist the weights and measures community as it deliberates on items before the National Conference on Weights and Measures (NCWM) Interim and Annual meetings. This is an online collection of the OWM Technical Analysis documents starting from 2022.
Separate sets of analysis documents (as a Full Analysis and an Executive Summary) 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 Meeting. Please see these links herein for the S&T Analysis and the L&R Analysis for the upcoming 2024 Annual NCWM meeting.
2. Federal Register Notices (FRNs). NIST publishes a short description of select proposed amendments to the NIST Handbooks (44, 130, and 133) to the Federal Register system ahead of both the NCWM Interim and Annual meetings. In some cases, NIST will publish FRNs ahead of regional weights and measures associations meetings. The notice for the 2024 Annual NCWM meeting is here.
3. NIST Summary of U.S. Legal Metrology Activities. The 2023 NIST Summary provides an archival record of proposals and associated actions with the goal of assisting the weights and measures community in consistently interpreting and implementing changes to NIST Handbooks 44, 130, and 133. It includes a high-level summarization of technical aspects and a detailed analysis of each item by NIST OW M, including background information, regional association reporting, and recommendations for items that were proposed for changes to these NIST Handbooks at the 2023 NCWM Annual meeting. We anticipate publication of the 2024 NIST Summary in November 2024 Legal Metrology Special Publication Series: NIST SP 2200 webpage!
4. Past NCWM Annual Meeting Reports. NIST OWM maintains an online collection of NIST Special Publications that served as the official reports from the National Conference on Weights and Measures (NCWM) Annual meetings from 2008 to 2021. The NCWM is responsible for publishing meeting reports from 2022 onwards. Upon request, a USB compilation of NCWM Annual Reports from 1905 to 2021 in Adobe Acrobat PDF format is available.
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