Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Metrology

Weights and measures

News and Updates

Keyword

Organization

NIST OWM and KEBS: Building Metrology Capacity for the RMOs

January 7, 2025

NIST Office of Weights and Measures (OWM) and the Kenya Bureau of Standards (KEBS) are currently conducting an interlaboratory mass comparison as part of a...

Map of RMAP regions without state listing

Coming in June 2025: Combined RMAP Training Event in Portland, Oregon

January 7, 2025

Every five years, NIST OWM gears up to host a Combined Regional Measurement Assurance Program (C-RMAP) training event with a state host with all six RMAP...

NVLAP NIST Handbook 150-2 New Release

January 7, 2025

In October 2024, the National Voluntary Laboratory Accreditation Program (NVLAP) released a revised version of NIST Handbook 150-2 , which represents the...

Consumer examining bottle labels in grocery store

Best Practices for Uniform Unit Pricing: An Update to NIST SP 1181 and NIST Handbook 130 Regulations

December 13, 2024

To help shoppers everywhere get the best value for their money, the NIST Office of Weights and Measures (OWM) convened a unit price working group comprised of...

A Better Balance for Tiny Liquid Masses

November 5, 2024

Scientists from the National Institute of Standards and Technology (NIST) are developing a mass balance to measure miniscule amounts of liquid with much higher...

New NIST OWM Contacts System is Open for Business

October 2, 2024

The Office of Weights and Measures (OWM) Contacts System customer portal is open for business. NIST OWM officially launched the new online portal for the OWM...

Metric Week 2024: Measure Up with Metric Education

October 2, 2024

National Metric Week ( October 6 to 12, 2024) is an opportunity to draw attention to the educational and economic benefits of metric system measurements...

Shelf Labels for Instant Noodles - Price Verification

2024 NCWM National Price Verification Survey

October 1, 2024

The National Council on Weights and Measures (NCWM) recently completed the 2024 National Price Verification Survey together with support from NIST OWM and...

Latest Updates on EPOs for Electrical Energy and Hydrogen Vehicle Fueling

October 1, 2024

OWM is pleased to announce the latest inspection and test procedures for two alternative vehicle fueling applications: Electrical Energy (EVSE for Vehicle...

DYK: NIST OWM Fun Facts

October 1, 2024

DYK: The Office of Weights and Measures (OWM) is the oldest office at NIST? NIST OWM’s principal mandate to “ fix the standard of weights and measures” is...

Info Hours Presented by NIST OWM: 2024 Series Successfully Completed!

October 1, 2024

This year, NIST OWM launched a new series of Information Hours, aka “Info Hours,” as an informal forum for our customers and stakeholders to engage in...

Dinelka Jagada tallies team scores during NIST Metric Est Game.

2024 NIST Internship Reflections

October 1, 2024

During the summer of 2024, the NIST Physical Measurement Laboratory’s ( PML) Office of Weights and Measures ( OWM) hosted two undergraduate students through the...

Mike Stocker working with EVSE equipment

NIST OWM-ANL Co-Host Inaugural EVSE Metrology Training Event

September 30, 2024

Several of the NIST OWM staff teamed up with Ted Bohn of Argonne National Laboratory (ANL) to deliver a one-day hybrid workshop and training event on electric...

David Sefcik reviews an inspection report with a Massachusetts Weights and Measures Official James Shattuck

NIST OWM Teams Up with Massachusetts for Price Verification Training

September 30, 2024

NIST OWM was delighted to provide a 2-day price verification training event based on the NIST Handbook 130 Examination Procedure for Price Verification for the...

The Reason the U.S. Doesn't Use the Metric System

June 27, 2024

It is now common knowledge that the U.S. is one of a handful of countries that still use non-SI measurements in our daily lives and in many commercial...

weight measure on the electronic balance

Considerations for Class II Scale Applications

June 26, 2024

For several years, there has been an increase in the use of Class II scales in commercial applications. Previously relegated to pharmacies, jewelry stores, and...

OWM Resources for the NCWM Interim and Annual Meetings

June 26, 2024

NIST OWM produces publications, technical guidance documents, and documentary standards on legal metrology, laws, regulations, measurement devices...

Digital library as a computer with electronic files

Announcing OWM’s New (Web and Excel Searchable) Technical Article Library

June 26, 2024

Update: As of FY26, we are no longer maintaining an Excel file of our technical articles. Please go to the OWM Technical Article Library page for all content...

Update on NIST Activities for EVSE

June 26, 2024

NIST OWM is striving to assist the weights and measures community meet the new technical challenges and demands of America’s continued transition to E-mobility...

Webinar image with hands over laptop in background

Recorded Webinars for Weights and Measures Available On-Demand!

June 26, 2024

OWM Recorded Webinars and Training Videos OWM develops and delivers a series of recorded webinars and training videos covering a wide range of legal metrology...

20 May 2024 is World Metrology Day

May 16, 2024

The theme for the 2024 World Metrology Day (on May 20) is "Sustainability," which raises awareness of the need for accurate measurements in the development of a...

The UK to recognize CE-marked weighing and measuring instruments

May 1, 2024

Before Brexit when the United Kingdom (UK) was still part of the European Union (EU), products placed on the UK market were required to comply with the EU...

Witness Testing in Official Weights and Measures Inspections

April 1, 2024

Weights and measures inspections provide a legally required, independent validation of the accuracy of commercial weighing and measuring devices; provide a...

NIST Special Publication on WIM Systems Used in Law Enforcement Applications

April 1, 2024

Introduction According to the 2021 Fact Sheet: The Bipartisan Infrastructure Deal, one in five miles of U.S. highways and major roads and over 45,000 bridges...

Fun and Games: Teach and Learn Measurement System Basics with the SI Units Card Deck

April 1, 2024

It’s easy to learn the metric system with the SI Units Card Deck (NIST SP 1297), an interactive educational activity that helps learners build their skills...

Was this page helpful?

NIST Headquarters
-Executive Director for Semiconductor Innovation and Investment
--CHIPS Program Office
---CHIPS Program Headquarters
----CHIPS Program Headquarters - HQ
----Opportunity & Inclusion Group
---External & Government Affairs Division
----External & Government Affairs – HQ
---Investments Division
----Investments Division – HQ
---Operations Office
----Operations Office – HQ
---Risk Management Division
----Risk Management – HQ
---Strategy, Technology & Policy Division
----Strategy, Technology & Policy – HQ
--CHIPS Research & Development Program Office
---CHIPS Research & Development Program Headquarters Division
----CHIPS Research & Development Program Headquarters – HQ
----Integration & Policy Office
----Outreach & Partnerships Office
---External R&D Partnerships Division
----External R&D Partnerships – HQ
----National Advanced Packaging Manufacturing Program Group
----National Semiconductor Technology Center Group
---Industrial Advisory Committee
----Industrial Advisory Committee – HQ
---Semiconductor Manufacturing Institute Division
----Semiconductor Manufacturing Institute – HQ
---Semiconductor Metrology & Characterization Office
----Semiconductor Metrology & Characterization Office – HQ
--Executive Director for Semiconductor Innovation and Investment
---Executive Director for Semiconductor Innovation and Investment
----Executive Director for Semiconductor Innovation and Investment – HQ
-Management Resources
--Management Resources
---Associate Director for Management Resources
----Associate Director for Management Resources - HQ
---Business Operations Office
----Business Analytics Group
----Business Operations Office - HQ
----Process Engineering Office
---Emergency Services Office
----Emergency Management, Preparedness and Coordination Group
----Emergency Services - HQ
----Fire Protection Group
----Security Systems and Access Control Group
---Equal Employment Opportunity and Accessibility Office
----Equal Employment Opportunity and Accessibility - HQ
---NIST Research Library and Museum
----NIST Research Library and Museum - HQ
---Fabrication Technology Office
----Fabrication Technology Office - HQ
--Office of Facilities and Property Management
---Boulder Design and Construction Division
----Boulder Design and Construction - HQ
----Facilities Improvement (Boulder) Group
----Reimbursable Work Group
----Facilities Modernization (Boulder) Group
---Gaithersburg Design and Construction Division
----Facilities Improvement (Gaithersburg) Group
----Reimbursable Work (Gaithersburg) Group
----Facilities Modernization (Gaithersburg) Group
----Gaithersburg Design and Construction - HQ
---Gaithersburg Facility Maintenance Division
----Building Management (Gaithersburg) Group
----Operations Engineering Group
----Gaithersburg Facility Maintenance - HQ
----Operations and Maintenance (Gaithersburg) Group
---Facilities Services Division
----Logistics Group
----Materials Management (Gaithersburg) Group
----Site Services Group
----Facilities Services Division - HQ
---Boulder Facilities Maintenance Division
----Site Support Group
----Boulder Facilities Maintenance- HQ
---Office of Facilities and Property Management
----Capital Asset Management and Facilities Planning Group
----OFPM Program Management Office
----Office of Facilities and Property Management - HQ
----Administrative Operations Group
----Safety, Health and Compliance Group
--Office of Acquisition and Agreements Management
---Office of Acquisition and Agreements Management
----Office of Acquisition and Agreements Management - HQ
---Financial Assistance Agreements Management Office
----Financial Assistance Agreements Management Office – HQ
---Acquisition Management Division
----Acquisition Management - HQ
----Acquisition Operations
----Acquisition Operations
----Acquisition Policy and Reimbursable Agreements
--Office of Information Systems Management
---Applications Systems Division
----Applications Systems - HQ
----Business Systems Group
----Custom Applications Development Group
----Data Management & Business Intelligence Group
----Database & Applications Infrastructure Group
----Drupal Development Group
----Identity & Access Management (IDAM) Group
----Institutional Systems Support Group
----OSHE Web Development Group
---Research Services Office
----Lab Automation Group
----Research Services Office - HQ
----Scientific Systems Group
---Service Delivery Excellence Office
----Customer Relationship Management Group
----Project Management Group
----Salesforce DevOps Group
----Service Delivery Excellence Office
----ServiceNow DevOps Group
---Information Technology Security & Networking Division
----A&A Assessment Group
----A&A Infrastructure Group
----Assessment & Accreditation (A&A) Program
----Embedded IT Security Officer Group
----Information Technology Security & Networking - HQ
----Network Security Group
----Networking Group
----Privacy Group
----Security Implementation & Incident Response Group
----Telecommunications Group
---Customer Access and Support Division
----CASD Boulder Site Support Group
----Customer Access and Support - HQ
----Desktop Support Group
----Embedded Support Group A
----Embedded Support Group B
----Managed Endpoint for MAC & Mobile Group
----Managed Endpoint Windows Group
----Service Desk Operations Group
---Infrastructure Services Division
----Compute & Storage Group
----Computer Facilities Group
----Infrastructure Services Division - HQ
----Security & Monitoring Group
----Unix Hosting Group
----Windows Hosting Group
---Office of Information Systems Management
----Office of Information Systems Management - HQ
----Service & Project Management Group
---Platform Services Division
----Authentication & Directory Services Group
----Collaboration Services Group
----Enterprise Cloud Communications Group
----Enterprise Continuous Diagnostics and Monitoring Group
----Platform Management Group
----Platform Services Division - HQ
--Office of Human Resources Management
---Learning and Organizational Development Division
----Learning and Organizational Development – HQ
---Talent Acquisition Division
----Talent Acquisition – HQ
---Workforce Analytics and Technology Division
----Workforce Analytics and Technology – HQ
---Human Resources Management Office
----Human Resources Management Office - HQ
---Workforce Programs Division
----Workforce Programs – HQ
--Office of Safety, Health and Environment
---Fire Protection Authority Division
----Fire Protection Authority – HQ
---Office of Safety, Health and Environment
----Office of Safety, Health and Environment - HQ
---Gaithersburg Safety, Health and Environment Division
----Occupational Health Group
----Occupational Safety Group
----Gaithersburg Safety, Health and Environment - HQ
----Environmental Management Group
---Radiation Safety Division
----Radiation Facilities Group
----Program Development and Compliance Group
----Radiation Safety - HQ
---Boulder Safety, Health and Environment Division
----Boulder Safety, Health and Environment - HQ
--Office of Financial Resource Management
---Financial Systems and Reporting Division
----CBS Core Support Group
----CBS Feeder System Support Group
----Financial Systems and Reporting Division - HQ
----Financial Statements Group
----Data Control Group
----Reconciliations Group
---Office of Financial Resource Management
----Office of Financial Resource Management - HQ
----Internal Controls Management & Evaluation Office
----Enterprise Risk Management Office
---Financial Operations Division
----Travel Group
----Agreements Group
----Accounts Receivable Group
----Financial Operations - HQ
----Accounts Payable Group
---Budget Division
----Technical and Extramural Programs Group
----Institutional Support and Facilities Group
----Budget - HQ
----Formulation and Financial Management Group
-Laboratory Programs
--Communications Technology Laboratory
---Quantum Communications Division
----Quantum Communications - HQ
----Quantum Networking & Transduction Group
----Quantum Networks Architecture and Protocols Group
----Scalable Quantum Computing Group
---RF Technology Division
----High-Speed Waveform Metrology Group
----Superconductive Electronics Group
----Guided Wave Electromagnetics Group
----Electromagnetic Fields Group
----RF Technology Division - HQ
---Smart Connected Systems Division
----IoT Devices and Infrastructures Group
----Networked Control Systems Group
----Smart Connected Manufacturing Systems Group
----Smart Grid Group
----Transformational Networks and Services Group
---Spectrum Technology and Research Division
----Applied Systems Metrology Group
----Fiber Sources and Applications Group
----Shared Spectrum Metrology Group
----Spectrum Technology and Research – HQ
---Wireless Networks Division
----Internet Technologies Research Group
----Radio Access and Propagation Metrology Group
----Wireless Networks Division - HQ
----Wireless Systems Innovation and Performance Group
---Public Safety Communications Research Division
----Public Safety Communications Research Division - HQ
----Advanced Communications Research Group
----Network Operations Group
---Communications Technology Laboratory HQ
----Communications Technology Laboratory HQ Gp
----Boulder Laboratory Director Office
--Engineering Laboratory
---Building Energy and Environment Division
----Building Energy and Environment - HQ
----Mechanical Systems and Controls Group
----Indoor Air Quality and Ventilation Group
----HVAC&R Equipment Performance Group
----Heat Transfer and Alternative Energy Systems Group
---Intelligent Systems Division
----Intelligent Systems - HQ
----Manipulation and Mobility Systems Group
----Cognition and Collaboration Systems Group
----Production Systems Group
----Sensing and Perception Systems Group
---Materials and Structural Systems Division
----Earthquake Engineering Group
----Engineering Research Support Group
----Infrastructure Materials Group
----Community Resilience Group
----Materials and Structural Systems - HQ
----Structures Group
---Engineering Laboratory Office
----Applied Economics Office
----Disaster Impact Reduction Office
----Engineering Laboratory - HQ
----Engineering Laboratory Data, Security, Technology Group
---Fire Research Division
----National Fire Research Laboratory Group
----Wildland Urban Interface Fire Group
----Flammability Reduction Group
----Fire Research - HQ
----Engineered Fire Safety Group
----Fire Fighting Technology Group
---Systems Integration Division
----Life Cycle Engineering Group
----Process Engineering Group
----Information Modeling and Testing Group
----Systems Integration - HQ
--Information Technology Laboratory
---Applied Cybersecurity Division
----Applied Cybersecurity - HQ
----Cybersecurity and Privacy Applications Group
----National Cybersecurity Center of Excellence
----NICE
---Computer Security Division
----Computer Security - HQ
----Cryptographic Technology Group
----Software Security Group
----Hardware Security Group
----Security Engineering and Risk Management Group
---Applied and Computational Mathematics Division
----Mathematical Software Group
----Mathematical Analysis and Modeling Group
----Quantum Information Group
----High Performance Computing and Visualization Group
----Applied and Computational Mathematics - HQ
---Statistical Engineering Division
----Applied and Computational Statistics Group
----Statistical Design, Analysis, and Modeling Group
----Statistical Engineering - HQ
---AI Research, Measurement, and Standards Division
----AI Standards and Guidelines Group
----AI Research, Measurement, and Standards – HQ
----Applied AI Research Group
---Technology Test and Evaluation Division
----Technology Test and Evaluation – HQ
----Biometric Technologies Group
----Multimedia Language Technologies Group
----AI Technologies Group
----Human-Centered Technologies Group
---Information Technology Laboratory Office
----Office of IT Standardization
----Information Technology Laboratory Office - HQ
----Office of Chief Cybersecurity Advisor
--Laboratory Programs
---Emerging Technologies Acceleration Program
----Artificial Intelligence Accelerator Group
----Emerging Technologies Acceleration Program - HQ
----Quantum Technology Accelerator Group
---Research Data and Computing Office
----Research Data and Computing Office – HQ
---Research Protections Office
----Research Protections Office - HQ
---Research Security and Safeguarding Science Office
----Research Security and Safeguarding Science - HQ
---Standards Coordination Office
----International Standards Policy and Coordination Group
----Standards and Conformity Assessment Services Group
----Standards Coordination Office - HQ
----National Voluntary Laboratory Accreditation Program (NVLAP)
---Special Programs Office
----Special Programs Office-HQ
---Associate Director for Laboratory Programs
----Associate Director for Laboratory Programs - HQ
--Material Measurement Laboratory
---Office of Reference Materials
----Business and Quality Management Group
----Business Application Development, Support, and Security Group
----Sales and Customer Services Group
----Publication and Web Services Group
----Office of Reference Materials - HQ
----Materials and Physical Services Group
---Material Data Division
----Data Science and AI Group
----Material Data Division – HQ
----Theory, Modeling, and Simulation Group
----Data Center and Business Group
----Data Services and Infrastructure Group
---Biosystems and Biomaterials Division
----Biomarker and Genomic Sciences Group
----Cellular Engineering Group
----Biomaterials Group
----Complex Microbial Systems Group
----Cell Systems Science Group
----Biosystems and Biomaterials Division - HQ
---Chemical Sciences Division
----Biochemical and Exposure Science Group
----Optical Measurements Group
----Chemical Process and Nuclear Measurements Group
----Gas Sensing Metrology Group
----Inorganic Chemical Metrology Group
----Biospecimen Science Group
----Chemical Sciences Division - HQ
----Organic Chemical Metrology Group
---Biomolecular Measurement Division
----Biomolecular Structure and Function Group
----Mass Spectrometry Data Center Group
----Bioprocess Measurements Group
----Bioanalytical Science Group
----Biomolecular Measurement Division - HQ
----Applied Genetics Group
---Applied Chemicals and Materials Division
----Applied Chemicals and Materials Division - HQ
----Thermodynamics Research Center Group
----Thermophysical Properties of Fluids Group
----Nanoscale Reliability Group
----Fluid Characterization Group
----Fatigue and Fracture Group
---Materials Science and Engineering Division
----Thermodynamics and Kinetics Group
----Polymers Processing Group
----Mechanical Performance Group
----Polymers and Complex Fluids Group
----Materials Science and Engineering Division - HQ
----Functional Polymers Group
----Functional Nanostructured Materials Group
---Materials Measurement Science Division
----Security Technologies Group
----Surface and Trace Chemical Analysis Group
----Nanomechanical Properties Group
----Nano Materials Research Group
----Materials Structure and Data Group
----Microscopy and Microanalysis Research Group
----Synchrotron Science Group
----Materials Measurement Science Division - HQ
----Data and AI-Driven Materials Science Group
---Material Measurement Laboratory Office
----The Material Measurement Laboratory Office of Operations Group
----Material Measurement Laboratory - HQ
----Genome-Scale Measurement Group
--NIST Center for Neutron Research
---NIST Center for Neutron Research
----Research Facility Operations Group
----NIST Center for Neutron Research - HQ
----Reactor Operations and Engineering Group
----Neutron-Condensed Matter Science Group
--Physical Measurement Laboratory
---Microsystems and Nanotechnology Division
----Biophysical and Biomedical Measurement Group
----Microsystems and Nanotechnology - HQ
----Nanostructure Fabrication and Measurement Group
----Photonics and Optomechanics Group
---Time and Frequency Division
----Atomic Devices & Instrumentation Group
----Precision Photonic Synthesis Group
----Quantum & Nonlinear Nanophotonics Group
----Ion Storage Group
----Neutral Atom Optical Clocks Group
----Time Realization and Distribution Group
----Phase Noise Metrology Group
----Time and Frequency - HQ
---Quantum Physics Division
----Quantum Physics - HQ
---Radiation Physics Division
----Dosimetry Group
----Radioactivity Group
----Radiation Physics - HQ
----Neutron Physics Group
---Sensor Science Division
----Fundamental Thermodynamics Group
----Sensor Science - HQ
----Temperature & Humidity Group
----Remote Sensing Group
----Optical Radiation Group
----Fluid Metrology Group
----Surface and Interface Metrology Group
---Applied Physics Division
----Advanced Microwave Photonics Group
----Spin Electronics Group
----Applied Physics - HQ
----Faint Photonics Group
----Quantitative Nanostructure Characterization Group
----Molecular and Bio-Photonics Group
----Magnetic Imaging Group
----Quantum Nanophotonics Group
----Sources and Detectors Group
---Quantum Measurement Division
----Quantum Optics Group
----Mass and Force Group
----Quantum Measurement - HQ
----Laser Cooling and Trapping Group
----Fundamental Electrical Measurements Group
----Applied Electrical Metrology Group
---Quantum Sensors Division
----Device Fabrication Group
----Long Wavelength Sensors and Applications Group
----Quantum Calorimeters Group
----Quantum Electronics Group
----Quantum Sensors – HQ
---Nanoscale Device Characterization Division
----Atom Scale Device Group
----Nanoscale Device Characterization Division - HQ
----Alternative Computing Group
----Nanoscale Spectroscopy Group
----Advanced Electronics Group
----Quantum Nanoelectronics Group
---Physical Measurement Laboratory Office
----Boulder Microfabrication Facility
----Physical Measurement Laboratory- HQ
----Center for Nanoscale Science and Technology
----Office of Weights and Measures
-Innovation & Industry Services
--Office of Advanced Manufacturing
---Microelectronics Manufacturing Division
----Microelectronics Manufacturing – HQ
----Microelectronics Strategy and Enterprise Group
----Semiconductor Coordination Group
----Semiconductor Operations Group
----Workforce and Equity Development Group
---Office of Advanced Manufacturing
----Office of Advanced Manufacturing - HQ
---Partnerships and Outreach Division
----Communications and Marketing Group
----Education and Workforce Development Group
----Partnership Engagement Group
----Partnerships and Outreach – HQ
----Technology Hubs Development Group
---Program Operations Division
----Competitions Group
----Institute and Program Management Group
----Performance Management Group
----Program Operations - HQ
---Strategy and Planning Division
----Analysis and Benchmarking Group
----Strategic Planning Group
----Strategy and Planning – HQ
--Baldrige Performance Excellence Program
---Baldrige Performance Excellence Program Office
----Award Process Group
----Director's Office, Baldrige Performance Excellence Program
----Administrative Support/Electronic Information Group
----Outreach and Communications Group
----Publications Management Group
----Workforce Development Group
--Innovation & Industry Services
---Associate Director for Innovation & Industry Services
----Associate Director for Innovation & Industry Services - HQ
---Technology Partnerships Office
----Technology Partnerships Office - HQ
--Hollings Manufacturing Extension Partnership Program
---National Platforms Division
----National Platforms – HQ
----Network Knowledge Management Group
----Supply Chain Group
---National Programs Division
----National Programs- HQ
---Outreach and External Affairs Division
----Outreach and External Affairs – HQ
---Performance Evaluation and Economic Impacts Division
----Performance Evaluation and Economic Impacts - HQ
----Performance Metrics and Evaluation Group
---Network Agreements Management Division
----Network Agreements Management - HQ
----Node B Group
----Node A Group
---Internal Operations Division
----Internal Operations – HQ
---Hollings Manufacturing Extension Partnership Program Office
----Hollings Manufacturing Extension Partnership Program - HQ
-Director's Office
--Director's Office
---Communications and Outreach Office
----External Stakeholder Outreach Group
----Media Relations Group
----Video Production Group
----Communications and Outreach - HQ
----Internal Communications Group
----Conference Program and Audiovisual Services Group
----Boulder Outreach Group
----Digital Content & Multimedia Design Group
---Ombuds Office
----Ombuds Office - HQ
---Program Coordination Office
----Program Coordination Office - HQ
---Director's Office
----Director's Office - HQ
---Congressional and Legislative Affairs Office
----Congressional and Legislative Affairs Office - HQ
---Management and Organization Office
----Management and Organization Office- HQ
---International and Academic Affairs Office
----International and Academic Affairs Office - HQ