Vt. Stat. Ann. tit. 9, § 2653

Such weights and measures in conformity with the standards of the United States as have been supplied to the State by the federal government or otherwise obtained by the State for use as State standards shall, when they have been certified as being satisfactory for use as such by the National Institute of Standards and Technology, be the State standards of weight and measure. The State standards shall be kept in a safe and suitable place. They shall not be removed from the laboratory except for repairs or for calibration, or as otherwise necessary to carry out the provisions of this chapter.