18 CFR 415.51 - Prior non-conforming structures.
A structure which was lawful before the adoption of this regulation but which is not in conformity with the provisions hereof, shall be subject to the following conditions (to be enforced by the appropriate authority as to Class I and Class II projects, respectively, under §§ 415.40 through 415.43 of this part):
(a) A non-conforming structure in the floodway may not be expanded, except that it may be modified, altered or repaired to incorporate flood proofing measures provided such measures do not raise the level of the 100-year flood.
Title 18 published on 2013-04-01
no entries appear in the Federal Register after this date.