Letter of Final Determination (LFD) 3
Letter of Final Determination (LFD) 3 : This is the letter in which FEMA announces its final determination regarding the flood hazard information, including (when appropriate) BFEs or base flood depths, presented on a new or revised DFIRM and in a new or revised FIS report. By issuing the LFD, FEMA begins the compliance period and establishes the effective date for the new or revised DFIRM and FIS report