Office of Weights and Measures

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.

Our OWM Staff  work with a range of industry sectors -- such as the retail sales, petroleum and chemical products, and transportation, including emerging commercial market sectors such as charging of electric vehicles and e-commerce. We also work closely with our Customers and Stakeholders, including international and national standards development organizations, Federal agencies, State laboratory and regulatory officials, and metric program educators. OWM’s Products and Services include technical guidance related to weights and measures applications, legal metrology documentary standards, promotion of the metric system, SI use and traceability, and training for industry, State laboratory metrologists, and weights and measures officials.