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.

Physical Measurement Laboratory

Office of Weights and Measures

News and Updates

Keyword

Topic Area

Metric Week Begins 10/10/10!

September 28, 2010

Every day is a metric day at the National Institute of Standards and Technology (NIST). But that won't stop the agency from celebrating Metric Week, held

From Hydrogen Fuel Stations to Bean Counters, NIST Weights and Measures Works to Meet Market Needs

August 17, 2010

State regulators, meter manufacturers and hydrogen gas producers concerned with developing markets for hydrogen fuel; farmers seeking to more precisely plan

juice cartons showing different kinds of labeling

Proposed Rules Would Allow Metric Only Labeling for Some Products

June 23, 2010

The National Institute of Standards and Technology (NIST) has issued two publications calling for the amendment of labeling laws to allow the voluntary use of

45th CMIL Meeting

May 14, 2010

We are pleased to inform you that the web site for the 45th CIML Meeting to be held from 21 through 24 September 2010 in Orlando (FL, USA) is now open: http:/

National Conference on Weights and Measures 95th Annual Meeting Agenda Released

April 27, 2010

The National Conference on Weights and Measures (NCWM) will hold their annual meeting in St. Paul, Minn., from July 11-15, 2010. The theme of this year's annual

NIST Metrology Day Celebrates Measurements in the Market

April 21, 2009

The next time you shop for frozen seafood, and the price per pound seems enticingly low, make sure that you are really getting a full 16 ounces of fish

Everything You Want To Know About SI (But Were Afraid to Ask)

June 10, 2008

Relax, even scientists can sometimes use help when making conversions and measurements with the modern metric system, the International System of Units (known

NIST Offers U.S. Interpretations of Recent SI (Metric) Changes

May 13, 2008

The National Institute of Standards and Technology (NIST) has issued a new American version of the English language SI Brochure, the eighth edition of the

NIST World Metrology Day Forum Focuses on Anti-Doping Advances

April 29, 2008

Thomas Hicks won the 1904 Olympic Games marathon in St. Louis, Mo., with a little help from his friends—two doses of strychnine, raw eggs and a brandy chaser

NIST Names Hockert Chief of Weights and Measures

January 17, 2006

The National Institute of Standards and Technology (NIST) announced Jan. 10 that Carol Hockert has been selected as the new chief of the NIST Weights and

NIST Links to State Weights and Measures Labs in New MEASUREnet-gov

January 21, 2000

Consumers and businesses can look forward to improved accuracy in the system of weights and measures thanks to MEASUREnet-gov, a new effort at the National

NIST Seeks Comments on Draft Handbook for Checking Net Contents of Packaged Goods

May 27, 1999

The National Institute of Standards and Technology is revising the handbook used to check the accuracy of net content labeling on packaged goods sold in the

Price Check II Shows Scanner Accuracy Has Improved Since 1996

December 16, 1998

A survey conducted by the Federal Trade Commission, the Department of Commerce's National Institute of Standards and Technology (NIST), and weights and measures

Aves Thompson to Become NCWM Chairman at 83rd Annual Meeting

April 27, 1998

Aves D. Thompson, chief of operations in the Alaska Division of Measurement Standards and Commercial Vehicle Enforcement, will be installed as chairman of the

Unit Pricing Changes to Benefit Customers and Retailers are Among the Issues at July Weights and Measures Conference

June 3, 1997

Proposed improvements in the standard that retailers must follow when they voluntarily offer unit pricing information for making value comparisons (between

Engine Fuels Law to be Changed to Protect Consumers from False Claims

April 19, 1996

Weights and measures officials in the National Conference on Weights and Measures are expected to adopt revisions to the Uniform Engine Fuels, Petroleum

More Accurate Pricing 'In Store' For Consumers

October 30, 1995

The combined work of government and the private sector has resulted in a new examination procedure for price verification in the nation's marketplace, an effort

Price Verification Tops Technical Program At NCWM 79th Annual Meeting

May 20, 1994

The 79th Annual Meeting of the National Conference on Weights and Measures, July 17-21, 1994, in San Diego, Calif., will feature a special technical session on

U.S.-Canada Agree to Recognize Test Results for Weighing and Measuring Devices

May 16, 1994

Weights and measures officials in the United States and Canada have agreed to mutual recognition of test results and examinations of weighing and measuring

Weights and Measures Group to Work on Verifying Accuracy of Retail Prices

September 30, 1993

In response to nationwide public concern about price accuracy in retail stores, the National Conference on Weights and Measures has established a Working Group

Advanced communications
-Open Radio Access Network (Open-RAN)
-Quantum communications
-Spectrum sharing
-Wireless (RF)
Bioscience
-Bioimaging
-Bioinformatics
-Biomanufacturing
-Biomaterials
-Cell biology
-Cell-free systems
-Engineering / synthetic biology
-Gene delivery systems
-Genome editing
-Genomics
-Glycomics
-Metabolomics
-Microbial measurements
-Proteomics
-Sequence screening
-Transcriptomics
Buildings and Construction
-Building codes and standards
-Building control systems
-Building damage and repair
-Building economics
-Building materials
-Energy efficiency
-Heating, ventilation and air conditioning equipment
-Indoor air quality
-Structural engineering
-Thermal comfort
Chemistry
-Analytical chemistry
-Chemical engineering and processing
-Chemical thermodynamics and chemical properties
-Molecular characterization
-Theoretical chemistry and modeling
-Thermochemical properties
Electronics
-Electromagnetics
-Flexible electronics
-Magnetoelectronics
-Optoelectronics
-Organic electronics
-Semiconductors
-Sensors
-Superconducting electronics
Energy
-Alternative energy
-Conventional energy
-Electric power / smart grid
-Fuels
Environment
-Air / water / soil quality
-Climate
-Environmental health
-Greenhouse gas measurements
-Marine science
-Sustainability
Fire
-Emergency building evacuation
-Fire detection
-Fire dynamics and science
-Fire fighting
-Fire modeling
-Fire risk reduction
-Materials flammability
-Structural fire resistance
-Wildland urban interface fire
Forensic Science
-Digital evidence
-Drugs and toxicology
-Firearms and toolmarks
-Forensic biometrics
-Forensic genetics
-Trace evidence
Health
-Biopharmaceuticals
-Cell and gene therapy
-Clinical diagnostics
-Dentistry
-Food and nutrition
-Human microbiome
-Medical imaging
-Precision medicine
-Regenerative medicine and advanced therapy
Information technology
-Artificial intelligence
--AI measurement and evaluation
--Applied AI
--Fundamental AI
--Hardware for AI
--Machine learning
--Trustworthy and responsible AI
-Biometrics
-Cloud computing and virtualization
-Complex systems
-Computational science
-Conformance testing
-Cyber-physical systems
--Smart cities
-Cybersecurity
--Cryptography
--Cybersecurity education and workforce development
--Cybersecurity measurement
--Identity and access management
--Privacy engineering
--Risk management
--Securing emerging technologies
--Trustworthy networks
--Trustworthy platforms
-Data and informatics
--Human language technology
--Information retrieval
--Natural language processing
-Federal information processing standards (FIPS)
-Health IT
-Internet of Things (IoT)
-Interoperability testing
-Location based services
-Mobile
-Networking
--Mobile and wireless networking
--Network management and monitoring
--Network modeling and analysis
--Network security and robustness
--Network test and measurement
--Next generation networks
--Protocol design and standardization
--Software defined and virtual networks
-Privacy
-Software research
--Software testing
-Usability and human factors
--Accessibility
-Video analytics
-Virtual / augmented reality
-Visualization research
-Voting systems
Infrastructure
Manufacturing
-Additive manufacturing
-Factory communications
-Factory operations planning and control
-Interoperability in manufacturing
-Machining
-Manufacturing economics
-Manufacturing quality assurance
-Manufacturing systems design and analysis
-Monitoring, diagnostics and prognostics
-Process improvement
-Process measurement and control
-Product data
-Robotics in manufacturing
--Agility and adaptability
--Collaborative robots
--Dexterous grasping
--Manipulation
--Mobility and industrial autonomous vehicles
--Navigation / actuation / control
--Sensing and perception
-Supply chain
-Sustainable manufacturing
-Systems engineering
-Systems integration
-Technology commercialization
Materials
-Ceramics
-Composites
-Concrete / cement
-Materials characterization
--Composition and structure
--Mechanical properties
--Thermal properties
-Metals
-Modeling and computational material science
-Polymers
-Superconductors
Mathematics and statistics
-Experiment design
-Image and signal processing
-Modeling and simulation research
-Numerical methods and software
-Statistical analysis
-Uncertainty quantification
Metrology
-Amount of substance
-Dimensional metrology
-Electrical / electromagnetic metrology
-Flow metrology and rheology
-Force metrology
-Humidity metrology
-Ionizing radiation metrology
-Mass metrology
-Metric
-Optical / photometry / laser metrology
-Pressure and vacuum metrology
-Thermometry metrology
-Time and frequency metrology
-Weights and measures
Nanotechnology
-Nanobiotechnology
-Nanochemistry
-Nanoelectronics
-Nanofabrication / manufacturing
--Lithography
--Self-assembly
-Nanofluidics
-Nanomagnetics
-Nanomaterials
-Nanomechanics
-Nanometrology
-Nanophotonics
-Nanophysics
-Nanoplasmonics
Neutron research
Performance excellence
-Assessment tools and services
-Baldrige award
-Baldrige examiners
-Baldrige Framework and Criteria
-Best practices
-Leadership development
Physics
-Atomic / molecular / quantum
-Biological physics
-Condensed matter
-Electron physics
-Magnetics
-Nuclear physics
-Optical physics and communications
-Quantum information science
-Radiation
-Spectroscopy
-Thermodynamics
-Time and frequency
Public safety
-Chemical / Biological / Radiological / Nuclear / Explosives (CBRNE)
-First responder preparedness
-Law enforcement
-Public safety communications research
-Response robots
Resilience
-Community resilience
-Disaster and failure studies
-Earthquake risk reduction
-Resilience economics
-Resilient materials
-Windstorm impact reduction
Standards
-Accreditation
-Calibration services
-Conformity assessment
-Documentary standards
-Frameworks
-Quality assurance
-Reference data
-Reference instruments
-Reference materials
-Standards education
Technology transfer
Transportation
-Aerospace
-Automotive