The procedures and practices involved in Navy ship naming are the products of evolution and tradition. The names for new ships are personally decided by the Secretary of the Navy. Ship name recommendations are conditioned by such factors as the name categories for ship types now being built, as approved by the Secretary of the Navy; the distribution of geographic names of ships of the Fleet; names borne by previous ships which distinguished themselves in service; names recommended by individuals and groups; and names of naval leaders, national figures, and deceased members of the Navy and Marine Corps who have been honored for heroism in war or for extraordinary achievement in peace.