An official website of the United States government
Here’s how you know
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.
OWM staff have consistently published newsletter articles over the years to keep our customers and stakeholders informed on current weights and measures issues
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
The NIST Office of Weights and Measures (OWM) National Legal Metrology Program (NLMP) is pleased to announce that several webinars are now recorded and
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 is pleased to have Tobias (Toby) Herman from the Physical Measurement Laboratory at NIST join us on a 1-year detail assignment with the Laboratory Metrology
NIST has delivered a portable and highly accurate instrument for measuring mass to the U.S. Army, marking the first time in the U.S. that this technology is
Microcombs – chip-scale devices that generate and measure frequencies of light with exquisite accuracy – have transformed timekeeping and boosted optical
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
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
For several years, a team of researchers from the National Institute of Standards and Technology (NIST) has been building a robotically operated moonlight
For NIST physicist Julia Scherschligt, the most exciting thing about quantum is seeing the real-world applications of this science. Julia leads a group that is
Not all gems are the precious stone kind. In the field of magnetic resonance imaging (MRI), a type of microscopic magnetic probes called geometrically encoded
Frequency combs — specialized lasers that act like rulers to measure light — are now being brought down to a low-power, chip-scale form. NIST researchers David
Weights and measures inspections provide a legally required, independent validation of the accuracy of commercial weighing and measuring devices; provide a
Nearly every modern cellphone has a built-in compass, or magnetometer, that detects the direction of Earth’s magnetic field, providing critical information for
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
The Office of Weights and Measures (OWM) welcomes Maryanne Amanze, spring Professional Research Experience Program (PREP) intern. Maryanne is currently in her
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
Devices that capture the brilliant light from millions of quantum dots, including chip-scale lasers and optical amplifiers, have made the transition from
Chip-based devices known as frequency combs, which measure the frequency of light waves with unparalleled precision, have revolutionized time keeping, the