24:52:06:08Levels of significance.
Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
The office shall assign one of the following three levels of significance to historic properties listed on the state register: (1) National significance for properties primarily representing nationally important events or important contributions to the development of the United States of America; (2) State significance for properties primarily representing events or contributions important to the history and development of the state of South Dakota; or (3) Local significance for properties primarily representing events or contributions important to the history and development of individual localities.
Source: 16 SDR 239, effective July 9, 1990.