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Physical Measurement Laboratory

Office of Weights and Measures

State Lab Program Resources

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The National Institute of Standards and Technology (NIST) Office of Weights and Measures manages the Laboratory Metrology Program that began with the New State Standards Program established by Congress in 1965 as part of its continuing support to the States. This program is designed to provide laboratory Recognition to NIST Handbook 143, Program Handbook (including adoption of ISO/IEC 17025:2017), technical and administrative guidance and training, proficiency testing, and assistance to State legal metrology laboratories to ensure accurate and traceable measurements from NIST to the local jurisdictions. The program operates through continued partnership with the State laboratories to manage numerous measurement-related activities. Certificates of Measurement Traceability are issued upon evaluation of the laboratory's ability to make reliable metrological measurements. Resources on this list are primarily developed and distributed for State Weights and Measures programs and metrology staff. Other laboratory users might find these items of general or specific interest and are welcome to use and/or modify them for other applications. NVLAP Handbook 150-2 (2019) contains technical criteria for calibration laboratories in normative (required) Annexes that was previously published in both Handbook 143 and the NVLAP Technical Guides. The technical criteria are applicable for all Weights and Measures laboratories as explicitly referenced in Handbook 143.
 

State Lab Submission ResourcesFile TypeHB 143 (17025) Sections
Handbook 143, State Laboratory Program (2023)PDFAll
Annual Submission for 2024 NIST Laboratory Recognition MemoPDFAll
Internal Audit Request Form (2019-08-08)PDFAll
Supplementary Laboratory Management Review (2019-06-16)DOCX | PDFAll
Handbook 143, Recognition Application (2018)DOCAll
Application Conditional Approved Signatory (2020-07-01)PDFAll
Example Table of Contents crosswalks for 17025:2017 (as modified during 2018 RMAP training)DOCAll
ISO/IEC 17025:2017 (17025:2005) Highlights for Weights and Measures DirectorsPDFAll
OWM Training Requirements Memo
Memo (revised 2021-03-12)
HB143 Table 2 (revised 2021-03-10)		Memo  PDF
Table PDF		Section 4,
Table 2 (6.2)
On-the-job training and mentoring resourcesSee websiteSection 4,
Table 2 (6.2)
Fundamentals of Metrology LAP Problems (Rev Apr. 24, 2023)
LAP Problem Resources - Zip file		PDFSection 4,
Table 2 (6.2)
Advanced Mass Pre-work (2018)DOCSection 4,
Table 2 (6.2)
RISK Impact Exercise for Traceability and Calibration ProgramsDOCX |
PDF
XLXS		Section 6.4 and 6.5
OWM Traceability Reviews and Lab Submissions for Scope ExpansionsPDFSection 6.4 and 6.5
Supplies and Supplier Evaluation Crosswalk for 17025:2005 to 17025:2017PDFSection 6.6
Procedure for Supplier EvaluationDOC | PDFSection 6.6
PT Follow-up FormDOCSection 7.7
Calibration Certificates (Reporting Results) Crosswalk for 17025:2005 to 17025:2017PDFSection 7.8
Electronic File Organization TipsPDFSection 7.11 and 8.3
Management Review Outline (2021)DOCX | PDFSection 8.9
Management Review Crosswalk for 17025:2005 to 17025:2017PDFSection 8.9
Risk Management Compiled Input for 17025:2005 (2017)PDFSection 8.9
Risk Management Matrix Tool for 17025:2017ExcelSection 8.9
Action Plan Form and LogDOCMultiple
NVLAP Handbook 150-2LINK 
NVLAP Handbook 150-2 ChecklistsLINK 
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State Lab Resources

Metrology, Metric and Weights and measures

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Created January 27, 2010, Updated August 14, 2024