36 C.F.R. § 60.9
(d) After receiving the comments of the State Historic Preservation Officer, and chief elected local official, or if there has been no response within 45 days, the Federal Preservation Officer may approve the nomination and forward it to the Keeper of the National Register of Historic Places, National Park Service, United States Department of the Interior, Washington, D.C. 20240. The Federal Preservation Officer signs block 12 of the nomination form if in his or her opinion the property meets the National Register criteria for evaluation. The Federal Preservation Officer's signature in block 12 certifies that:
(e) When a Federal Preservation Officer submits a nomination form for a property that he or she does not believe meets the National Register criteria for evaluation, the Federal Preservation Officer signs a continuation sheet Form NPS 10-900a explaining his/her opinions on the eligibility of the property and certifying that: