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South Dakota
✓ Initiative Process Available
✅
Citizen Initiative
✅
Referendum
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Constitutional Amend.
✅
Statute Initiative
Official Election Office
Legislature Website
Initiative Rules & Requirements
Direct Constitutional Amendment
Signature Requirement
35,017 signatures required.
Filing Deadline
May 5, 2026.
Filing Office
https://sdsos.gov/elections-voting/upcoming-elections/ballot-measures/default.aspx
Filing Fee
$0
Review Process
LRC (Legislative Research Council) reviews the text for style and form.
Subject Restrictions
Single-subject; cannot appropriate money.
Distribution Rules
None.
Circulator Rules
Must be a resident (30 days) and 18+.
Ballot Title Process
Attorney General prepares the title and explanation.
Last verified: 3/29/2026
Direct Statute Initiative
Signature Requirement
17,508 signatures required.
Filing Deadline
May 5, 2026.
Filing Office
https://sdsos.gov/elections-voting/upcoming-elections/ballot-measures/default.aspx
Filing Fee
$0
Review Process
LRC (Legislative Research Council) reviews the text for style and form.
Subject Restrictions
Single-subject; cannot appropriate money.
Distribution Rules
None.
Circulator Rules
Must be a resident (30 days) and 18+.
Ballot Title Process
Attorney General prepares the title and explanation.
Notes:
South Dakota was the first state to adopt the initiative (1898) and maintains low signature thresholds.
Last verified: 3/29/2026
Referendum
Signature Requirement
Statutory: 17,508; Constitutional: 35,017 signatures required.
Filing Deadline
May 5, 2026.
Filing Office
https://sdsos.gov/elections-voting/upcoming-elections/ballot-measures/default.aspx
Filing Fee
$0
Review Process
LRC (Legislative Research Council) reviews the text for style and form.
Subject Restrictions
Single-subject; cannot appropriate money.
Distribution Rules
None.
Circulator Rules
Must be a resident (30 days) and 18+.
Ballot Title Process
Attorney General prepares the title and explanation.
Last verified: 3/29/2026