The redefinition of the foot in 1959 was legally binding and intended for the whole of the United States. But only one exception temporarily allowed the previous definition of foot to continue to be used, exclusively for geodetic surveys. To distinguish these two versions of the foot, the new one was called the “international foot” and the old one the “American surveying foot”. In addition, it has been ordered that the U.S. survey foot be replaced by the international foot when the U.S. geodetic control networks are readjusted. Although such an adjustment was completed in 1986, the use of the U.S. foot of survey remained. This situation has led to confusion and errors that persist today and contradict the intention of uniform standards. To solve problems caused by the simultaneous use of two nearly identical versions of the foot, the National Institute of Standards and Technology (NIST) and the National Geodetic Survey (NGS), the National Ocean Service (NOS) and the National Oceanic and Atmospheric Administration (NOAA) are taking joint action. In an effort to ensure national consistency in length measurement, the U.S. Foot Lift will be phased out as part of the modernization of the National Spatial Reference System (NSS). From this moment on, the international foot is simply called the foot.
A Federal Register (FRN) notice has been issued seeking public comment to ensure this change is made in an orderly manner and with minimal disruption. Since 1893, the legal definition of foot in the United States has been based on the meter. The definition adopted at that time was the one established by Congress in 1866, as 1 foot = 1200/3937 meters precise (or 1 foot = 0.304 800 6 meters approximately). In 1959, the foot/meter ratio was officially refined as 1 foot = 0.304 8 meters. This change was made to support U.S. industry and international trade. It resolved a long-standing discrepancy with the definition used by various organizations in the United States and other countries. 1.
Length measurement containing twelve inches or one-third of a yard.2. The base, soil or foundation of anything; and metronomy, the final destination; like the foot of a fine. This definition of foot is based on The Cyclopedic Law Dictionary. This entry needs to be proofread.