S.D. Codified Laws § 40-25-2
The persons forming a purebred livestock registry association shall sign and acknowledge written articles which shall contain the name of the association and the names and residences of the persons forming the same. Such articles shall also contain a statement of the breed of livestock for registration of which said association is formed and no association shall be formed for the purpose of registration for more than one particular breed of livestock. The said articles shall also designate the municipality within this state where the principal place of business and records of said association shall be located but provision may be made for business meetings of the stockholders and directors outside of the State of South Dakota by said articles of incorporation.
SDCL 40-25-2