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John McGuire (Fed)

Weights and Measures Coordinator

John brings extensive expertise with the interpretation and application of NIST Handbooks 44, 130, and 133. He has also served in numerous leadership roles within the New Jersey state weights and measures program, regional weights and measures associations, and the National Conference on Weights and Measures (NCWM) participating on and chairing various standing committees, task groups, and subcommittees.

John has over three decades of dedicated and expansive experience in Weights and Measures in the State of New Jersey. He started his career testing and inspecting large capacity devices, performed field testing and inspecting of commercial weighing and measuring devices, and has worked as a state metrologist. For the last seventeen years John has been the Enforcement Supervisor overseeing all aspects of New Jersey Weights and Measures.

During his tenure, John has been instrumental in ensuring staff properly apply legal metrology laws, regulations, standards and test procedures as requirements of NIST Handbooks 130, 133 and 44. in conjunction with creating policy, procedures, protocols and guidelines to meet organizational goals in the area of legal metrology. He has structured training programs, spearheaded enforcement and compliance initiatives, built control procedures for evidence management and has been sought as an expert/technical witness. John has been an active member of the NCWM in providing input and participating in the standards development process and the development of model laws and regulations as found in NIST Handbook 44, 130, and 133 and other documentary standards.

Additionally, John has conducted various educational seminars, championed uniformity in the use of technology, has provided technical assistance to and liaised with government and industry representatives and associations, owner/operators of weighing and measuring devices, inspectors, service personnel and the general public.



2024 National Price Verification Survey

NIST Office of Weights and Measures (OWM) is collaborating with the National Conference on Weights and Measures (NCWM), together with 28 state and 38 local


2024 Laws Interim Analysis

Lisa Warfield, John McGuire
The NIST OWM Analysis is submitted to assist the Weights and Measures community as it deliberates on items before the Conference. NIST OWM offers these comments

2023 NIST Summary of U.S. Legal Metrology Activities

Lisa Warfield, Katrice Lippa, Jan Konijnenburg, Loren Minnich, Gloria Diane Lee, Juana Williams, John McGuire
The NIST Office of Weights and Measures (OWM) presents its second issue of the 2023 NIST Annual Summary of U.S. Legal Metrology Activities report. This report
Created April 12, 2023, Updated July 1, 2024