Guest blog post by Carol Hockert, Director, Office of Weights and Measures, National Institute of Standards and Technology 

It’s held annually during the first week of March to commemorate President John Adams's signing of the first U.S. weights and measures law on March 2, 1799, but you may not be aware of it. Weights and Measures Week is when we as a nation take a moment to sing the praises of our unsung heroes, weights and measures inspectors and other weights and measures professionals and recognize the well-lubricated machine that is the U.S. commercial measurement system. It is also a good time to reflect on how the ever-evolving commercial marketplace drives the need for continual changes in that system. 

Many may think that, aside from the occasional redefinition, the standard units of measure are more or less fixed and there is relatively little need to change. 

Not so! 

Certainly ensuring uniformity and making sure that the chain of measurements from their ultimate realizations all the way down to the consumer level is unbroken and as accurate as possible is a large part of what the whole weights and measures system is about. But, as new products and services come on the market, supporting measurement standards and practices need to be put in place to help ensure that people know what they’re getting and for how much and to ensure that businesses selling those products and services are able to fairly compete. 

To recognize this, the National Conference on Weights and Measures (NCWM) has made this year’s Weights and Measures Week theme “On the Path to Tomorrow.” NCWM is a professional nonprofit association of state and local weights and measures officials, manufacturers, retailers, and consumers that develops model codes that states use as a template for new weights and measures-related laws. 

“During the 110-year history of the NCWM, we have seen a number of advancements, from mechanical devices to highly sophisticated software-based weighing and measuring instruments and now apps used on smart phones,” NCWM Chairman Ronald Hayes said in a press release. 

With technical guidance from NIST, the NCWM is working to help pave the regulatory path forward for startup companies like Uber and Lyft that are using GPS to calculate passenger transport fares, alongside more conventional methods of measurement. Once complete, the model regulations for these systems will be included in NIST Handbook 44 so that states can adopt them, in whole or in part, into their regulatory structure.