It is the Metric Act of 1866. That Act was slightly amended recently to remove out of date conversion tables and instead refer to the SI as established in 1960 and as interpreted by the Secretary of Commerce (NIST writes it for his signature). See USMA laws page for more details.
________________________________ From: Parker Willey Jr. <[email protected]> To: U.S. Metric Association <[email protected]> Sent: Sun, May 5, 2013 3:24:34 AM Subject: [USMA:52740] The law and the metric system Hi: I came across this while searching the internet. http://www.law.cornell.edu/uscode/text/15/204 This seems to be the law and we should let it be known. ...Parker Willey Jr. San Jose, CA
