Navy officers serve either as a line officer or as a staff corps officer. Line officers wear an embroidered gold star above their rank of the naval service dress uniform while staff corps officers and commissioned warrant officers wear unique designator insignias that denotes their occupational specialty.U.S. Navy Uniform Regulations, 4102 – Sleeve Designs for Line and Staff Corps , updated 28 January 11, accessed 22 January 12U.S. Navy Personnel Command, Officer, Community Managers, LDO/CWO OCM, References, LDO/CWO Designators , rout page updated 4 October 11, accessed 22 January 12
