Metric Conversion Act of 1975, Pub. L. No. 94-168 (Dec. 23, 1975), codified at 15 U.S.C. 205a et seq., as amended by the Omnibus Trade and Competitiveness Act of 1988, Pub. L. No. 100-418 (Aug. 23, 1988), the Savings in Construction Act of 1996, Pub. L. No. 104-289 (Oct. 11, 1996), and the Department of Energy High-End Computing Revitalization Act of 2004, Pub. L. No. 108-423 (Nov. 30, 2004).
The Act designated the metric system as the preferred system of weights and measures for U.S. trade and commerce, and directed federal agencies to convert to the metric system, to the extent feasible, including the use of metric in the construction of federal facilities.
It also created the U.S. Metric Board to assist in the conversion. The Board no longer exists.