U.S. Metric Association
The US Metric Association (USMA), Inc., is a national non-profit organization that was founded in 1916. USMA advocates completing the US conversion to the International System of Units, known by the abbreviation SI (ess-eye) and also called the metric system. The process of changing measurement units to the metric system is called metric transition or metrication.
What's New: Updated Information by Date:
2014-04-21: See the notice about World Metrology Day, 20 May 2015.
2015-04-20: PDF of the 2015-May/June issue of Metric Today is now available online for USMA members.
2015-02-20: PDF of the 2015-March/April issue of Metric Today is now available online for USMA members.
2014-12-20: PDF of the 2015-January/February issue of Metric Today is now available online for USMA members.
20 May 2015
Measurements and Light
See the following BIPM/OIML link for information:
See also USMA's list of Metric events and anniversaries.
New York State is the only US jurisdiction that has not yet adopted the 1999 amendment to the Uniform Packaging and Labeling Regulation (UPLR) that permits the option of eliminating non-metric units from labels of products not regulated by the federal Fair Packaging and Labeling Act (FPLA). Please contact USMA's PR Director if you are willing to help with this cause.
We'd Like to Know
Perhaps your hospital is changing over to measuring patients' height and weight in metric units only, or your company's product line is going hard metric. We'd be very interested in the how and the why. And, with your permission, we'll tell your story in our newsletter, Metric Today. Please contact USMA.
Metric Today is a membership benefit of joining USMA
Information about USMA:
Metric System Information:
Metric System Information for Teachers/Educators:
USMA offers a selection of books, charts, posters, rulers, measuring tapes, bumper stickers, and thermometers specifically for learning the metric system.
These and more items can be found on USMA's
Links to Other Selected (Non-USMA) Metric System Information, Standards, Guides, and Policies
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