What happens when it appears a historic property may have been harmed by an applicant for federal assistance before a Section 106 review is complete? The first step is to understand when Section 110(k) of the National Historic Preservation Act applies and who must address this concern. We will answer these two questions and share pointers on responding - as a federal agency, SHPO/THPO, or other stakeholder - to situations in which anticipatory demolition questions surface.