In establishing projected flood elevations and designating areas having special flood hazards for land use purposes with respect to any community pursuant to section 4102 of this title, the Administrator shall first propose such determinations and designations by publication for comment in the Federal Register, by direct notification to the chief executive officer of the community, and by publication in a prominent local newspaper.

The Administrator shall publish notification of flood elevation determinations and designations of areas having special flood hazards in a prominent local newspaper at least twice during the ten-day period following notification to the local government. During the ninety-day period following the second publication, any owner or lessee of real property within the community who believes his property rights to be adversely affected by the Administrator’s proposed determination may appeal such determination to the local government. The sole grounds for appeal shall be the possession of knowledge or information indicating that (1) the elevations being proposed by the Administrator with respect to an identified area having special flood hazards are scientifically or technically incorrect, or (2) the designation of an identified special flood hazard area is scientifically or technically incorrect.