S.D. Codified Laws § 39-5-5

Any person who knowingly sells or offers for sale any meat which is the product of any foreign country or imported from without the boundaries of the United States, or any meat product containing such imported meat, without indicating this fact by display of a conspicuous sign in his place of business and by labels or brands on each quarter, half or whole carcass of such meat, or on each can, case, or package containing any of the above-mentioned product, naming the country of its origin and the date of exportation is guilty of a Class 2 misdemeanor.