NMFS listed 5 Caribbean corals as threatened under the Endangered Species Act on October 10, 2014.  Critical habitat shall be designated to the maximum extent prudent and determinable at the time a species is proposed for listing (50 CFR 424.12). We concluded that critical habitat was not determinable for the 5 corals at the time of listing. However, we anticipated that critical habitat would be determinable in the future given on-going research. We, therefore, announced in the final listing rules that we would propose critical habitat in separate rulemakings. This rule proposes to designate critical habitat for the 5 Caribbean coral species listed in 2014.  A separate proposed critical habitat rule is being prepared for the 15 Indo-Pacific corals listed as threatened in 2014. The proposed designation for the Caribbean corals may include marine waters in Florida, Puerto Rico, US Virgin Islands, Navassa Island, and Flower Garden Banks containing essential features that support all stages of life history of the corals.  The proposed rule is not likely to have an annual effect on the economy of $100 million or more or adversely affect the economy. NMFS has contacted the Departments of the Navy, Air Force, and Army as well as the U.S. Coast Guard requesting information related to potential national security impacts that may result from the critical habitat designation.  Based on information provided, we concluded that there will be an impact on national security in only 1 area offshore Dania Beach, FL, and will propose to exclude it from the designations.