SDCL § 37-21-9: Inspection and testing of weights, measures, and devices.

When not otherwise provided for by law, the secretary shall inspect, test, try, and ascertain that all weights, measures, and weighing and measuring devices kept, offered, or exposed for sale, sold or used or employed by any person in proving or ascertaining the size, quantity, extent, area, or measurement of quantities, things, produce, or articles of distribution or consumption purchased or offered or submitted for sale, hire, or award are correct.