SDCL § 40-20-5: Livestock ownership inspection area dividing ranch--Movement of livestock without inspection.

If the border of the livestock ownership inspection area of South Dakota divides any ranch or farm, written permission may be given by the board to the owner or lessee of the ranch or farm to trail livestock out of the South Dakota inspection area for grazing purposes without inspection. The border of the South Dakota inspection area shall be contiguous to an inspection area of an adjacent state. The board may cancel such permission at any time subject to the provisions of chapter 1-26.