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1-1 PURPOSE AND SCOPE. This UFC provides design policy and procedures for design of moorings for U.S. Department of Defense (DOD) vessels.1-2 PURPOSE OF CRITERIA. The purpose of this UFC is to ensure quality, consistency, and safety of DOD vessels, mooring hardware, and mooring facilities throughout the world. Other criteria should not be used without specific authorization. 1-3 DEFINITION. A mooring, in general terms, is defined as a compliant structure that restrains a vessel against the action of wind, wave, and current forces. For the purposes of this UFC, the emphasis is on moorings composed of tension members (chain, line, wire rope, etc.) and compression members (fenders, camels, etc.) used to secure vessels (surface ships, submarines, floating drydocks, yard craft, etc.). The term mooring in this UFC includes anchoring of ships. 1-4 CANCELLATION. This UFC cancels and supersedes MIL-HDBK-1026/4 Mooring Design, Naval Facilities Engineering Command, July 1999. 1-5 ORGANIZATIONAL ROLES AND RESPONSIBILITIES. Over the design life of a mooring facility, many organizations are involved with the various aspects of a facility. Personnel involved range from policy makers, who set the initial mission requirements for vessels and facilities, to deck personnel securing lines. Figure 1 illustrates the DOD organizations that must understand the various aspects of moorings. In addition, all these groups must maintain open communications to ensure safe and effective moorings. Safe use of moorings is of particular importance for the end users (the ship's personnel and facility operators). They must understand the safe limits of a mooring to properly respond to significant events, such as a sudden storm, and to be able to meet mission requirements. It is equally important for all organizations and personnel shown in Figure 1-1 to understand moorings. For example, if the customer setting the overall mission requirement states "We need a ship class and associated facilities to me