Tombstone promotion

In the United States Navy, officers have various ranks. Equivalency between services is by pay grade. United States Navy commissioned officer ranks have two distinct sets of rank insignia: on dress uniform a series of stripes similar to Commonwealth naval ranks are worn, while on service khaki, working uniforms (Navy Working Uniform [NWU], and coveralls), and special uniform situations (combat utilities, flight suits, and USMC uniforms when worn by Navy officers assigned or attached to USMC units), the rank insignia are similar (there are subtle differences in the size, shape, and design of naval services insignia) to the equivalent rank in the US Army or US Air Force.

In the U.S. Navy, pay grades for officers are:

Note 1: The Navy does not currently use pay grade WO-1, Warrant Officer. A warrant officer (WO-1) is an officer, but not a commissioned officer. Warrant officers (W-1) are "appointed" to their grade with a "warrant" in lieu of a commission while Chief Warrant Officers in the Navy are "commissioned" as warrant officers. The Army and Marine Corps currently appoint warrant officers to this pay grade.

In the event that officers demonstrate superior performance and prove themselves capable of performing at the next higher pay grade, they are given an increase in pay grade. The official term for this process is a promotion.

Commissioned naval officers originate from the United States Naval Academy, the United States Merchant Marine Academy, other Service Academies (United States Military Academy or United States Air Force Academy), Naval Reserve Officer Training Corps (NROTC), Officer Candidate School (OCS), the since-disestablished Aviation Officer Candidate School (AOCS), and a host of other commissioning programs such as the "Seaman to Admiral-21" program and the limited duty officer/chief warrant officer (LDO/CWO) selection program. There are also a small number of direct commissioned officers, primarily staff corps officers in the medical, dental, nurse, chaplain and judge advocate general career fields.

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Wikipedia