Weights and Measures

To improve the accuracy of measurements, enhance consumer protection, foster fair competition, and facilitate economic growth and trade through technical activities that promote uniformity in national and international legal metrology laws, regulations, standards, test procedures, and enforcement.

owm-banner.png

Office of Weights and Measures (OWM)

OWM fulfills its mission through the following activities:

Standards Development
- Partnering with the National Conference on Weights and Measures (NCWM)
- Representing the U.S. in the International Organization of Legal Metrology (OIML)
Design and Delivery of Training
- Metrology
- Weights and Measures Law
- Inspection Procedures
Technical Guidance
Publications and Outreach

Events

5577: Basic Uncertainty Concepts

January 17, 2019

This 2 hour webinar provides a very basic introduction to uncertainty calculations and reporting using the 8-step process published in NIST SOP 29 (NISTIR 6969...

5587: Fundamentals of Metrology - SIM Participants Only

January 28, 2019 to February 01, 2019

The 5 day Fundamentals of Metrology seminar introduces participants to the concepts of measurement systems, units, measurement uncertainty, measurement...

5564: Calibration Certificate Evaluation

January 29, 2019 to January 31, 2019

This 4-hour webinar is conducted on two days, with a 2-hour session on each day. The learning event will introduce concepts necessary to successfully implement...

5565: Fundamentals of Metrology

February 04, 2019 to February 08, 2019

The 5 day Fundamentals of Metrology seminar is an intensive course that introduces participants to the concepts of measurement systems, units, good laboratory...

Industry Impacts

Fare Standards for Rideshare Services

To calculate fares, app-based ride services such as Lyft and Uber don’t use traditional taxi meters, but instead combine data from GPS and cellular networks to...