

Above the rank of Admiral is the rank of fleet admiral. The official Navy term for this occasion is a promotion. In the event that officers demonstrate superior performance, they are given an increase in pay grade. O-7 through O-10 are for flag officers - rear admiral (lower half) ( one star), rear admiral ( two star), vice admiral ( three star), and admiral ( four star).O-5 and O-6 for senior officers - commander and captain.O-1 through O-4 are junior officers - ensign, lieutenant (junior grade), lieutenant, and lieutenant commander.O-1 to O-10 for Unrestricted Line or Restricted Line Officers:.Chief Warrant Officers (CWO2-CWO5) are Commissioned Officers only Warrant Officer (W-1) is not a commissioned officer W-2 to W-5 for Chief Warrant Officers.Equivalency between services is by pay grade. In the United States Navy, officers have various ranks, called rates in the USN.
