Miss. Code Ann. § 75-27-11

In addition to the state standards provided for in Section 75-27-9, there shall be supplied by the state at least one (1) complete set of copies of these to be kept in the office or laboratory of the state division of weights and measures and to be known as “office standards,” and also such “field standards” and such equipment as may be found necessary to carry out the provisions of this article. The office standards and field standards shall be verified upon their initial receipt and at least once each year thereafter, the office standards by direct comparison with the state standards and the field standards by comparison with the office standards.