Office of Weights and Measures

Evolving Regulatory Landscape for EV Charging

group photo taken at NCWM 2023 Annual Meeting; Craig VanBuren, Don Onwiler, and Mahesh Albuquerque of NCWM, Laurie Locascio and Katrice Lippa of NIST, Gene Robertson of NCWM, David Sefcik

NIST OWM – NCWM: An Enduring Partnership for Over 100 Years

Finger tapping orange key on keyboard e-learning

The NIST Office of Weights and Measures (OWM) works to ensure that consumers get what they pay for, and sellers get fair payment for the goods and services they sell, by promoting a uniform and technically sound system of weights and measures. This, in turn, promotes consumer confidence and helps ensure fair competition for U.S. commerce that spans from local business operations to a global scale.

To learn more about OWM and its roles and responsibilities, click About Us.

Originally established in 1836 as the “Office of Construction of Standard Weights and Measures”, OWM remains the oldest office at NIST. For more information, see A Brief History of OWM.

We want your feedback isolated banner vector design

Events

5876 NIST Handbook 130 - Examination Procedure for Price Verification

Tue, Oct 3 2023, 11:00am - 1:00pm EDT

This 2-hour webinar will provide inspectors with an understanding and knowledge of the NIST Handbook 130 Examination

5874 NIST Handbook 133 - How to Test Animal Bedding

Wed, Oct 4 2023, 11:00am - 1:00pm EDT

This 2-hour webinar will teach and demonstrate the test procedure for verifying the useable volume declaration on

5874 NIST Handbook 133 - How to Test Animal Bedding

Wed, Oct 4 2023, 11:00am - 1:00pm EDT

This 2-hour webinar will teach and demonstrate the test procedure for verifying the useable volume declaration on

5877 NIST Handbook 133 - Overview of Handbook 133

Thu, Oct 12 2023, 11:00am - 1:30pm EDT

This 2.5 hour webinar provides a complete overview of NIST Handbook 133, "Checking the Net Contents of Packaged Goods"

Projects and Programs

Jan Konijnenburg Testing Device Thumbnail

Coriolis Mass Flow Meters as Field Test Standards

Ongoing

Commercial metering systems are ubiquitous in the commercial marketplace (to dispense liquified products, from gas and water to food products and agricultural

Electric Vehicle Supply Equipment (EVSE) Test Instrumentation: Guidance Documentation

Ongoing

The NIST Office of Weights and Measures (OWM) will begin work on developing a guideline document assessing methods for establishing traceability to primary SI

World Flags International Business Globe

National Metrology Systems: A Framework for Global Trade

Ongoing

It’s an old phrase, but the world keeps getting smaller every day! This is especially true when it comes to the global marketplace and our reliance on one

NIST OWM – NCWM: An Enduring Partnership for Over 100 Years

Ongoing

On August 1, 2023, the National Institute of Standards and Technology ( NIST ) and the National Conference on Weights and Measures ( NCWM ) signed a new

Newsletter Articles and Updates

NIST SP2200-03: An Evolving Regulatory Landscape for Commercial Electric Vehicle Fueling

September 28, 2023

NIST OWM has just published the latest installment of its NIST Special Publication 2200 series on Legal Metrology , NIST SP 2200-03 An Evolving Regulatory

2023 NIST Internship Reflections

September 28, 2023

During the summer of 2023, the NIST Physical Measurement Laboratory’s ( PML ) Office of Weights and Measures ( OWM ) hosted four undergraduate students who were

What is the true meaning of a “scale division” (d) versus a “verification scale division” (e)

September 28, 2023

Introduction If you are a state weights and measures official, scale manufacturer, or any other stakeholder dealing with scales used for commercial transactions

Metric Week 2023: Seven Days of SI Fun

September 20, 2023

National Metric Week (October 8 to 14, 2023) is an opportunity to underscore the usefulness of metric system measurements, formally known as the International

Awards

David Sefcik (center) accepting his award from NCWM Chair-elect Gene Robertson (at the podium), NCWM Chair Mahesh Albuquerque (left) and NIST Director Laurie Locascio (right).

2023 NCWM Outstanding Contributions Award - David Sefcik

David Sefcik of the NIST OWM received the 2023 NCWM Outstanding Contributions Award for his service as a co-organizer of the 2022 NCWM-NIST

Word collage (reference materials, QC tools, repeatability, compatibility, reproducibility, etc. over top of small jar

2023 - Best Review Award Published in 2022---Clay Davis, Goncalo Gouveia, Christina Jones, Katrice Lippa, and Tracey Schock

" Reference Materials for MS-based Untargeted Metabolomics and Lipidomics: A Review by the Metabolomics Quality Assurance and Quality

Elizabeth J. Benham Recognized by the IEEE Standards Association

The IEEE Standards Association is an organization focused on advancing global technologies through the Institute of Electrical and

Contacts

General Inquiries:

General Information - OWM

owm@nist.gov

Training Inquiries

Yvonne Branden

yvonne.branden@nist.gov

Website Inquiries:

Yvonne Branden

yvonne.branden@nist.gov