Talk:International System of Units/Archives/07/2009

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Although I agree that English/Imperial Units are still the primary units of commerce in the US, I think the use of the word "official" is technically inaccurate. The US was one of the original signatories of the SI treaty and SI has been a legal system in the US for over a hundred years. —Preceding unsigned comment added by Paolorausch (talk • contribs) 12:32, 16 March 2009 (UTC)

Many federal and state agencies demand that persons present in the U.S. use customary units in order to function in society. For example, you can't drive or get a state non-driver ID card unless you are willing to state your height in feet and inches, and your mass in pounds. That makes it official. --Jc3s5h (talk) 18:29, 17 July 2009 (UTC)