certified or preliminarily determined by the Secretary of the Interior as contributing to the historical sig-
nificance of a registered historic district or a district preliminarily determined by the Secretary to qualify
as a registered historic district; (3) individually listed on a state inventory of historic places in states with
historic preservation programs which have been approved by the Secretary of the Interior; or (4) individ-
ually listed on a local inventory of historic places in communities with historic preservation programs
that have been certified either: (A) by an approved state program as determined by the Secretary of the
Interior or (B) directly by the Secretary of the Interior in states without approved programs.
“Improvement” means a habitable structure, accessory structure, public utility, public transportation in-
frastructure, or a private road, bridge, culvert, or utility (i.e., potable water well or waste water system)
providing for the use of or primary access to residential and/or commercial property. For the purpose of
this Procedure, “existing improvements” are those in existence as of December 5, 2014.
“Infill development” means construction, installation, modification, renovation, or rehabilitation of
land, interests in land, buildings, structures, facilities or other improvements in an area that was not pre-
viously developed but it surrounded by existing development.
“Letter of Map Amendment” (LOMA) is a letter issued by FEMA officially removing a structure or lot
from the flood hazard area based on information provided by a certified engineer or surveyor. This is
used where structures or lots are located above the base flood elevation and have been inadvertently in-
cluded in the mapped special flood hazard area.
“Lowest floor” means the lowest floor of the lowest enclosed area of a building, including the basement,
except an above grade unfinished or flood resistant enclosure, usable solely for parking of vehicles,
building access, or storage in an area other than a basement area is not considered a building’s lowest
floor provided that such enclosure is not built so as to render the structure in violation of the applicable
non-elevation design requirements of 44 C.F.R. § 60.3.
“Meander belt” means the land area on either side of a watercourse extending laterally across the river
valley which represents a minimal corridor for the lateral meander extension and migration necessary to
maintain an equilibrium slope and minimize vertical channel instability and erosion over time.
“New construction” means structures for which the start of construction commenced on or after the ef-
fective date of the floodplain management regulation adopted by the community and includes any subse-
quent improvements to such structures.
“NFIP” means the National Flood Insurance Program.
“Redevelopment” means construction, installation, modification, renovation, or rehabilitation of land,
interests in land, buildings, structures, facilities, or other improvements in a previously developed area.
The term includes substantial improvements and repairs to substantially damaged buildings.
“Replacement structure” means a new building placed in the same location, footprint, and orientation
as the pre-existing building.
“River” means the full length and width, including the bed and banks, of any watercourse, including riv-
ers, streams, creeks, brooks, and branches, which experience perennial flow. River does not mean con-
structed drainageways, including water bars, swales, and roadside ditches.
“River corridor” means the land area adjacent to a river that is required to accommodate the dimen-
sions, slope, planform, and buffer of the naturally stable channel and that is necessary for the natural