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Captain
Army and Air Force metal insignia of the rank of captain.
Country	United States
Service branch	United States Army  United States Marine Corps  United States Air Force
Abbreviation	CPT (Army) Capt (Marines and Air Force)
Rank	Captain
NATO rank	OF-2
Non-NATO rank	O-3
Next higher rank	Major
Next lower rank	First lieutenant
Equivalent ranks	Lieutenant (United States Navy and United States Coast Guard)

U.S. Air Force insignia of the rank of captain (O-3)

U.S. Marine Corps insignia of the rank of captain (O-3).^[1]

U.S. Army insignia of the rank of Captain (O-3).

In the United States Army (USA), U.S. Marine Corps (USMC), and U.S. Air Force (USAF), captain (abbreviated "CPT" in the USA and "Capt" in the USMC and USAF) is a company grade officer rank, with the pay grade of O-3. It ranks above first lieutenant and below major. It is equivalent to the rank of lieutenant in the Navy/Coast Guard officer rank system. The insignia for the rank consists of two silver bars, with slight stylized differences between the Army/Air Force version and the Marine Corps version.

Description

Promotion to captain is governed by Department of Defense policies derived from the Defense Officer Personnel Management Act of 1980. DOPMA guidelines suggest 95% of first lieutenants should be promoted to captain after serving a minimum of two years at their present rank.

An Army captain generally serves as a battalion/squadron (cavalry) or brigade staff officer and may have an opportunity to command a company/battery (field and air defense artillery)/troop (cavalry). When given such a command, they bear the title company/battery/troop commander. U.S. Army Special Forces (12-member) Operational Detachments Alpha are also commanded by a captain, who has the title of "detachment commander."

Marine captains generally serve as staff officers in battalions/squadrons (aviation), regiments/aviation groups (MAG or MACG), or in MAGTFs (MEU and MEB) and may have an opportunity to command companies, batteries (artillery and air defense) or various types of detachments, with the title of commanding officer. In the Marine Raider Regiment, a captain, with the title of "team leader," commands a 14-man Marine Special Operations Team (MSOT). Marine captains also serve as executive officers (i.e., second-in-command) of infantry battalion weapons companies and some other larger combat logistics and aviation support units. Marine Aviation captains routinely serve as aircraft and air mission commanders, aircraft section and division leaders, aviation maintenance department division officers, and as officers-in-charge (OIC) of various combat logistics and aviation support functional and staff sections.

An Air Force captain's authority varies by group assignment. In an operations group, senior captains may be flight commanders while more junior captains may be heads of departments. In the maintenance or logistics and mission support groups they are almost always flight commanders. In the medical group, captains usually have limited administrative and command responsibility as captain is frequently the entry-level rank for most medical officers and dental officers.^[2]

Captains of all three services routinely serve as instructors at service schools and combat training centers, aide-de-camps to general officers, liaison and exchange officers to other units, services, and foreign militaries, recruiting officers, students in advanced and graduate/post-graduate programs in Professional Military Education institutions and civilian universities, and on various types of special assignments.

In Army and Air Force medical units, captain is the entry-level rank for those possessing a medical degree, or a doctorate in a healthcare profession (including nurse anesthetists, pharmacists, optometrists, veterinarians, physician assistants, and dentists, among others). In Army and Air Force Judge Advocate General Corps, lawyers with a Juris Doctor degree and membership in the bar of at least one U.S. state or territory are appointed captains, or first lieutenants promotable upon completion of initial entry training. (Marine Corps Judge Advocates, after earning their commissions as unrestricted line officer second lieutenants, as well as earning an accredited law degree and passing a bar examination, enter active duty as first lieutenants and must complete the Marine Officer Basic Officer Course/The Basic School to qualify as rifle platoon commanders, before subsequently attending their MOS school prior to assignment to their first Marine Corps Judge Advocate billet and completing the minimum time in grade requirements for selection for and promotion to captain.)

History

The U.S. military inherited the rank of captain from its British Army forebears. In the British Army, the captain was designated as the appropriate rank for the commanding officer of infantry companies, artillery batteries, and cavalry troops, which were considered as equivalent-level units. Captains also served as staff officers in regimental and brigade headquarters and as aides-de-camp to brigadiers and general officers. British Marine battalions also utilized captain as the appropriate rank of their constituent Marine companies. Therefore, American colonial militia and Provincial Regular units (e.g., First and Second Virginia Regiments), as well as colonial Marines, mirrored British Army and Marine organization and rank structure.

On July 23, 1775 General Washington decreed that captains would wear a "yellow or buff" cockade in their hats as their badge of rank. In 1779 the rank insignia for captains was changed to an epaulette worn of the right shoulder. Infantry captains wore a silver epaulette while all other captains wore a gold epaulette. Both company grade officers and non-commissioned officers began wearing chevrons as rank insignia in 1821. The captain wore a single chevron, point up, above the elbow on each sleeve— again, the color was silver for infantry captains and gold for all other captains. In 1832 company grade officers ceased wearing chevrons and went back to a system of epaulettes (again silver for infantry and gold for all others); captains wearing an epaulette on each shoulder, but smaller and less elaborate than the field grade officer versions. In 1836 captains began wearing an insignia of two bars (gold for infantry and silver for all others). Finally, in 1872, all captains, regardless of branch, began to wear two silver bars.

See also

• Police captain


• United States Army officer rank insignia


• United States Air Force enlisted rank insignia

References

Further reading

• DA Pamphlet 600–3, Commissioned Officer Professional Development and Career Management

v t e United States uniformed services commissioned officer and officer candidate ranks
Pay grade / branch of service	Officer candidate	O-1	O-2	O-3	O-4	O-5	O-6	O-7	O-8	O-9	O-10	O-11	Special grade
Insignia	[1]			[6]					[6]	[6]	[6]		[2]
Army	CDT / OC	2LT	1LT	CPT	MAJ	LTC	COL	BG	MG	LTG	GEN	GA[3]	GAS[3]
Marine Corps	Midn / Cand	2ndLt	1stLt	Capt	Maj	LtCol	Col	BGen	MajGen	LtGen	Gen	[5]	[5]
Navy	MIDN / OC	ENS	LTJG	LT	LCDR	CDR	CAPT	RDML	RADM	VADM	ADM	FADM[3]	AN[3]
Air Force	Cadet / OT / OC	2nd Lt	1st Lt	Capt	Maj	Lt Col	Col	Brig Gen	Maj Gen	Lt Gen	Gen	GAF[3]	[5]
Coast Guard	CDT / OC	ENS	LTJG	LT	LCDR	CDR	CAPT	RDML	RADM	VADM	ADM	[5]	[5]
PHS Corps	[OC]	ENS	LTJG	LT	LCDR	CDR	CAPT	RADM	RADM	VADM	ADM	[5]	[5]
NOAA Corps	OC	ENS	LTJG	LT	LCDR	CDR	CAPT	RDML	RADM	VADM	[4]	[5]	[5]
[1] No universal insignia for officer candidate rank; Navy candidate insignia shown [2]Official 1945 proposal for General of the Armies insignia; John J. Pershing's GAS insignia: ; George Dewey's Admiral of the Navy insignia: [3] Rank used for specific officers in wartime only, not permanent addition to rank structure [4] Grade is authorized by the U.S. Code for use but has not been created [5] Grade has never been created or authorized [6] USAF and U.S. Army insignia shown

v t e United States warrant officer ranks
	W-1	W-2	W-3	W-4	W-5
Army	WO1	CW2	CW3	CW4	CW5
Marine Corps	WO1	CWO2	CWO3	CWO4	CWO5
Navy	WO1	CWO2	CWO3	CWO4	CWO5
Air Force	WO1[1]	CWO2[1]	CWO3[1]	CWO4[1]	CWO5[1]
Coast Guard	WO1[1]	CWO2	CWO3	CWO4	[2]
PHS Corps	[2]	[2]	[2]	[2]	[3]
NOAA Corps	[3]	[3]	[3]	[3]	[3]
[1]Grade inactive [2]Grade is authorized for use by U.S. Code but has not been created [3]Grade never created or authorized