N.D. Cent. Code § 64-03-02: False weights - Unlawful for public use

It is unlawful for any person to knowingly and fraudulently use a weighing or measuring device, or keep a device for public use, which does not conform to the legal standard of weights and measures of the state, or to alter a weighing or measuring device after it has been tested or calibrated and sealed so that it does not conform to the standard.