SDCL § 3-13-56.1: Enrollment--Effective date--Deferral.

An eligible employee may become a participant by signing a participation agreement.

Participation is effective on the first available pay date following the execution of the participation agreement, subject to the timing of payroll processing by the participant’s employer. If a participation agreement is untimely filed for a change to be made effective for the next following pay period, the change is effective in the subsequent pay period. If a new employee signs and files a participation agreement on the employee's date of hire, the agreement may become effective immediately.

The plan may not accept any deferrals unless a signed participation agreement is on file in the office of the executive director or the third-party administrator.