South Dakota Codified Laws
Chapter 06A - Tribal Unemployment Insurance
Section 61-6A-8 - Failure to make payment--Loss of option.

61-6A-8. Failure to make payment--Loss of option.
If any Indian tribe or any tribal unit fails to make any required payments, including assessments of interest and penalty, within ninety days of receipt of the bill, the Indian tribe or tribal unit shall lose the option to make payments in lieu of contributions for the following tax year unless payment in full is received before contribution rates for next tax year are computed.

Source: SL 2002, ch 244, ยง8.