Master chief petty officer
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Master Chief Petty Officer is the ninth, and highest, enlisted rate (paygrade E-9) in the U.S. Navy and U.S. Coast Guard, just above senior chief petty officer. Master chief petty officers are addressed as "Master Chief (last name)". They constitute the top 1% of the enlisted members of the maritime forces.
In the Navy, advancement to master chief petty officer is similar to that of chief petty officer and senior chief petty officer. It carries requirements of time in service, superior evaluation scores, and selection by a board of master chiefs. Similarly, senior chief petty officers and chief petty officers are chosen by selection boards. In the Coast Guard, advancement to master chief petty officer is similar to other advancements consisting of competition with other advancement-eligible senior chief petty officers. Advancement-eligible senior chief petty officers are prioritized based on written examination scores, evaluations, award points, time in service, and time in grade. Master chief petty officers are then selected monthly from this prioritization list as positions become available.
Petty officers of all grades possess both a rate (the enlisted term for rank) and rating (job, similar to a military occupational specialty (MOS) in other branches). The full title (rarely used) is a combination of the two. Thus, a master chief petty officer with the rating of fire controlman would properly be called a master chief fire controlman.
Each rating has an official abbreviation, such as FC for fire controlman, FT for fire control technician, and STS for sonar technician, submarines. When combined with the rate abbreviation (CM for master chief), it produces the full rate designation, such as FCCM for master chief fire controlman. It is not uncommon practice to refer to the master chief by this shorthand in all but the most formal correspondence (such as printing and inscription on awards). Mostly, though, they are simply called "Master Chief", regardless of rating. In certain ratings, which are split into two or more designations, the third letter is often dropped when the rank of master chief (or senior chief) is attained, such as STS (sonar technician, submarines), and STG (sonar technician, surface). In this case, the official abbreviation becomes STCM, or master chief sonar technician.
The rate insignia for a master chief is a white eagle with spread wings above three chevrons. The chevrons are topped by an arc that goes behind the eagle. Two inverted silver stars (a reference to the stars used on the sleeves of line officers) are placed above the eagle. Between the arc and the top chevron is the specialty mark of the enlisted rating. In the picture above, the two crossed anchors is the specialty mark of a boatswain's mate (abbreviated as BM). This is used on the service dress blue, dinner dress blue jacket, and dinner dress white jacket uniforms. On other uniforms, the insignia used for shirt collars and caps is the one that has become universally accepted as the symbol of the chief petty officer. This is a gold foul anchor (note: the proper term is "foul anchor", not "fouled") superimposed with a silver "USN" (Navy) or a silver shield (Coast Guard). As on the rating badge, this is capped by two five-pointed stars, showing one ray down.
Command Master Chief Petty Officer 
Master chief petty officers are generally considered to be the technical experts in their fields. They serve at sea and ashore in commands of all sizes. Many master chiefs choose to enter the command master chief petty officer program. If selected, a master chief receives additional leadership training and is assigned to a command as the command master chief (CMC). The command master chief is the senior enlisted person at a command and as such works as a liaison between the commanding officer and the enlisted ranks, serving as the senior enlisted leader. In this capacity, the CMC assists the commanding officer in issues of quality of life, discipline, training, and morale. On submarines, the CMC is called the chief of the boat or "COB". The CMC insignia has a silver star in lieu of the enlisted rating between the arc and the top chevron.
Fleet and Force Master Chief Petty Officer 
These two ranks are equivalent and their insignia is also the same—a master chief rating badge with two gold stars above the eagle and a gold star for the rating insignia.
Force Master Chief Petty Officer 
These are master chiefs who have virtually the same responsibility as command master Chiefs, but force master chief petty officers (FORCM) are responsible for larger force commands, such as Submarine Force U.S. Atlantic Fleet. There are 16 force master chief positions in the Navy: Bureau of Medicine and Surgery, Naval Air Force, U. S. Atlantic Fleet, Naval Air Forces, Naval Education and Training Command, Naval Facilities Engineering Command, Naval Special Warfare, Naval Surface Force, U.S. Atlantic Fleet, Naval Surface Forces, Navy Cyber, Navy Expeditionary Combat Command, Navy Installations Command, Navy Personnel Command, Navy Recruiting Command, Navy Reserve Forces, Submarine Force, U.S. Pacific Fleet, and Submarine Forces.
Fleet Master Chief Petty Officer 
These are master chiefs who have virtually the same responsibility as command master chiefs, but fleet master chief petty officers (FLTCM) are responsible for larger fleet commands, such as the U.S. Pacific Fleet. There are four fleet master chief positions in the Navy: United States Fleet Forces Command; United States Pacific Fleet; United States Naval Forces, Europe/Africa; Navy Total Force/Manpower, Personnel, Training and Education.
Master Chief Petty Officer of the Coast Guard 
The master chief petty officer of the Coast Guard (MCPOCG) is the most senior enlisted member in the U.S. Coast Guard. The MCPOCG adds a third star above the rating insignia described earlier, and all three stars are gold (silver on the gold foul anchor collar device). Likewise, the rating specialty mark is replaced by a gold shield. The current master chief petty officer of the Coast Guard is Michael P. Leavitt.
There exists one post, master chief petty officer of the Navy (MCPON, pronounced "mick-ponn"), which is unique. The holder of this post is the most senior enlisted member in the U.S. Navy. The MCPON adds a third star above the rating insignia described earlier, and all three stars are gold (silver on the gold foul anchor collar device). Likewise, the rating specialty mark is replaced by a gold star. In September 2012, Michael D. Stevens assumed the role of MCPON, replacing Rick D. West.
Popular culture 
- In the 2012 TV series Last Resort, the character Joseph Prosser, (portrayed by Robert Patrick) is the Chief of the Boat (COB) of the USS Colorado and holds the rank of master chief petty officer.
- In the 2000 film Men of Honor, the character Leslie William "Billy" Sunday (portrayed by Robert De Niro) is a U.S. Navy diver with the rank of master chief petty officer. This film is based on real-life events of Carl Brashear, the first black man to be accepted into the salvage divers school; he eventually also earned the rank of master chief himself.
- In the 1997 film, G.I. Jane, the U.S. Navy SEAL in charge of training the recruits is Command Master Chief John Urgayle, played by Viggo Mortensen.
- In the Halo video game franchise, the protagonist, Master Chief Petty Officer John-117, commonly referred to as "Master Chief" or simply "Chief", derives his nicknames from his rank of master chief petty officer. However, in later games, his rank is Master Chief Petty Officer of the Navy
See also 
- "OPNAVINST 1306.2F". Department of the Navy. Retrieved 28 April 2011.
- U.S. Navy uniform regulations
- U.S. Military enlisted ranks
- Official website of the Master Chief Petty Officer of the U.S. Navy
- Official website of the Master Chief Petty Officer of the U.S. Coast Guard
|United States enlisted ranks|
|Pay Grade →
Branch of Service ↓
|Air Force||AB||Amn||A1C||SrA||SSgt||TSgt||MSgt||SMSgt||CMSgt - CCM - CMSAF|
|Army||PVT||PV2||PFC||SPC - CPL||SGT||SSG||SFC||MSG - 1SG||SGM - CSM - SMA|
|Marine Corps||Pvt||PFC||LCpl||Cpl||Sgt||SSgt||GySgt||MSgt - 1stSgt||MGySgt - SgtMaj - SgtMajMarCor|
|Navy||SR||SA||SN||PO3||PO2||PO1||CPO||SCPO||MCPO - CMDCM - FORCM - FLTCM - MCPON|
|Coast Guard||SR||SA||SN||PO3||PO2||PO1||CPO||SCPO||MCPO - CMC - MCPOCG|