1. Except as otherwise provided in this section, the following persons may, but are not required to, obtain licenses as public weighmasters to engage in public weighing:
(a) A law enforcement or weights and measures officer or other qualified employee of the State, a city or a county agency or institution when acting within the scope of official duties.
(b) A person weighing property, produce, commodities or articles:
(1) That the person or the person’s employer is buying or selling; or
(2) In conformity with the requirements of federal statutes or the statutes of this state relating to warehousemen or processors.
2. A person described in subsection 1 shall not issue a certificate of weights and measures unless the person holds a license as a public weighmaster.