S.D. Codified Laws § 42-11-5
Each equine professional shall post and maintain the following sign:
WARNING
Under South Dakota law, an equine professional is not liable for an injury to or the death of a participant in equine activities resulting from the inherent risks of equine activities, pursuant to § 42-11-2.
Such signs shall be placed in a clearly visible location on or near stables, corrals, race tracks, or arenas where the equine professional conducts equine activities. The warning notice shall appear on the sign in black letters, with each letter being a minimum of one inch in height. Each written contract entered into by an equine professional for the providing of professional services, instruction, or the rental of equipment or tack or an equine to a participant, whether or not the contract involves equine activities on or off the location or site of the equine professional's business, shall contain in clearly readable print the warning notice provided in this chapter.
SDCL 42-11-5