SDCL § 12-18-4.1: Preparation for voting--Test ballots--Custody of key activating system.

Before any poll is opened, each electronic ballot marking system shall be prepared for voting. The precinct superintendent shall test the system by using the system to mark at least two ballots. The test ballots shall be provided by the person in charge of the election and clearly marked with words, Test Ballot. If the system does not properly mark the test ballots, the precinct superintendent shall work on the system until a successful test is conducted. The precinct superintendent shall maintain custody of the key to activate the system at all times.