Wyo. Stat. § 40-10-132: Prohibited acts.

(a) No person shall:

(i) Use or possess any incorrect weight or measure for use in commerce;

(ii) Sell or offer for sale any incorrect weight or measure for use in commerce;

(iii) Remove any tag, seal or mark from any weight or measure or weighing or measuring device, without specific written authorization from the proper authority;

(iv) Hinder or obstruct any weights and measures official in the performance of his duties;

(v) Use or possess any weight, measure, weighing or measuring device that for use in commerce has not been tested and certified as correct by the department or a registered service person;

(vi) Place any weight, measure, weighing or measuring device into commercial service without having a current certificate of registration as a registered service person; or

(vii) Violate any provision of this act or rules or regulations promulgated under this act.