Is the information nationally important?
Answers to both questions must be well documented and logically organized. In order to establish the national significance of an archeological resource, preparers must show how the data make a major contribution to the existing corpus of information. This standard requires that potentially recoverable data are likely to revolutionize or substantially modify a major prehistoric or historic concept, resolve a substantial historical or anthropological debate, or close a serious gap in a major theme of United States prehistory or history.
