12:36:03:03.  Maximum content of weed seed. Seed other than the grasses listed in this section may not contain more than one percent by weight of weed seed. Seed of the following grasses or mixtures of these grasses may not contain more than three percent by weight of weed seeds:

          (1)  Bluestems (Andropogon spp., Bothriochloa spp., and Schizachyrium scaparium);

          (2)  Indiangrass (Sorghastrum nutans);

          (3)  Gramas (Bouteloua spp.); and

          (4)  Prairie sandreed (Calamovilfa longifolia).

          Source: 15 SDR 54, effective October 10, 1988; 46 SDR 26, effective September 2, 2019.

          General Authority: SDCL 38-12A-20.

          Law Implemented: SDCL 38-12A-16.