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State Lab Program Resources

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 Resources File Type HB 143 (17025) Sections

Handbook 143, State Laboratory Program (2019)

Annual Submission for 2023 NIST Laboratory Recognition Memo PDF All
Internal Audit Request Form (2019-08-08) PDF All
Supplementary Laboratory Management Review (2019-06-16) DOCX | PDF All
Handbook 143, Recognition Application (2018)


Application Conditional Approved Signatory (2020-07-01) PDF All
Example Table of Contents crosswalks for 17025:2017 (as modified during 2018 RMAP training) DOC All
ISO/IEC 17025:2017 (17025:2005) Highlights for Weights and Measures Directors PDF All

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 resources See website Section 4,
Table 2 (6.2)

Fundamentals of Metrology LAP Problems (Rev Apr. 24, 2023)
LAP Problem Resources - Zip file

PDF Section 4,
Table 2 (6.2)
Advanced Mass Pre-work (2018) DOC Section 4,
Table 2 (6.2)
RISK Impact Exercise for Traceability and Calibration Programs


Section 6.4 and 6.5
OWM Traceability Reviews and Lab Submissions for Scope Expansions PDF Section 6.4 and 6.5
Supplies and Supplier Evaluation Crosswalk for 17025:2005 to 17025:2017 PDF Section 6.6
Procedure for Supplier Evaluation DOC | PDF Section 6.6
PT Follow-up Form DOC Section 7.7
Calibration Certificates (Reporting Results) Crosswalk for 17025:2005 to 17025:2017 PDF Section 7.8

Electronic File Organization Tips


Section 7.11 and 8.3

Management Review Outline (2021) DOCX | PDF Section 8.9
Management Review Crosswalk for 17025:2005 to 17025:2017 PDF Section 8.9
Risk Management Compiled Input for 17025:2005 (2017) PDF Section 8.9
Risk Management Matrix Tool for 17025:2017 Excel Section 8.9
Action Plan Form and Log DOC Multiple
NVLAP Handbook 150-2 LINK  
NVLAP Handbook 150-2 Checklists LINK  
* See more job aids posted with SOPs, GMPs, and GLPs


State Lab Resources


Created January 27, 2010, Updated October 30, 2023