The U.S. Army Corps of Engineers, Jacksonville District, is preparing a National Environmental Policy Act (NEPA) assessment to support design refinements being considered in the Central Everglades Planning Project (CEPP) North Phase Validation Study. The purpose of the CEPP North Phase Validation Study is to confirm project components, construction sequencing, and project dependencies as described in the 2014 CEPP Final Project Implementation Report and Environmental Impact Statement (PIR/EIS) and Chief's Report. In addition, the Validation Study will also validate that the proposed design refinements are necessary for the CEPP North project components to function as originally intended and determine if the refinements require additional NEPA. The 2014 CEPP Final PIR/EIS is available at https://usace.contentdm.oclc.org/utils/getfile/collection/p16021coll7/id/16154.