S.D. Codified Laws § 39-7-4.8
Certain packages not subject to chapter
The provisions of this chapter do not apply to any package containing an individual serving of less than one - half ounce or one - half fluid ounce of an artificial dairy product for use in a restaurant, institution, or passenger carrier, and not otherwise packaged for sale at retail.
Source: SL 1987, ch 292, § 12.