S.D. Codified Laws § 57A-9-708
Conditions to filing initial financing statement or continuation statement under part
A person may file an initial financing statement or a continuation statement under this part if:
(1) The secured party of record authorizes the filing; and
(2) The filing is necessary under this part:
(A) To continue the effectiveness of a financing statement filed before July 1, 2001; or
(B) To perfect or continue the perfection of a security interest.
Source: SL 2000, ch 231.