VDHP implements a predictive model to identify areas with potential for containing significant Precontact Native American sites. The model may also offer some guidance in locating historic Euro-American early settlements. The predictive model can only be completed and submitted to the VDHP by a Secretary of the Interior qualified consultant for the purposes of project review. It should not be used in lieu of a site visit. The predictive model was approved by the Vermont Advisory Council on Historic Preservation on May 23, 2002 and reaffirmed on October 22, 2015.