Jerry, Federal legislation declares that SI is *preferred* for all trade and commerce in the US. However, only SI, without non-SI units, is not required, or even permitted by the Fair Packaging and Labeling Act (FPLA).
It is the FPLA than needs amending to permit metric-only labeling in the US. An amendment to permit SI-only labeling has been drafted by NIST, but it does not yet have enough sponsors in Congress to pass. My guess is that it will be signed by President Obama when it is passed by Congress. Gene. --- Original message ---- >Date: Sat, 24 Jan 2009 07:12:26 -0800 (PST) >From: Jeremiah MacGregor <[email protected]> >Subject: [USMA:42436] Re: President Obama at George Mason University >To: "U.S. Metric Association" <[email protected]> > > Stan, > > What laws need to be changed? I was under the > impression that there are no laws in the US favoring > any system. So wouldn't it just have to be the > choice of the producers of the products to use > metric only? > > Jerry
