S.D. Codified Laws § 8-3-1.2
If the board of supervisors requires nominating petitions pursuant to § 8-3-1.1, no candidate for elective township office may be nominated unless a nominating petition is filed with the township clerk no later than five p.m. of the day twenty-five days prior to the annual township meeting at which such officer is to be elected. The nominating petition shall be signed by no less than ten registered voters of the township and shall be on a form approved by the state board of elections. The nominating petition shall contain the name of the candidate, his residence and business address, and the office for which he is nominated. A formal declaration of the candidate shall be signed by him prior to the circulation of petitions. The signed declaration of the candidate, or a facsimile thereof, may accompany and be part of the petition. The original signed declaration shall accompany and be a part of the petition. The signer or the circulator of the petition shall add the signer's residence address and the date of the signing. No petition may be circulated until forty-five days prior to the annual meeting.
SDCL 8-3-1.2