U.S. perspective on possible changes in the electrical units

This paper summarizes the U.S. view regarding possible changes in the U.S. legal units of voltage and resistance. Such changes, about 9 and 1.5 ppm, respectively, would result if the Consultative Committee on Electricity (CCE) adopted a new value for the Josephson frequency-voltage ratio and a value for the quantized Hall resistance consistent with the International System of Units (SI) and if these values were used internationally for defining and maintaining national units of voltage and resistance.