United States Navy

====Enlisted====
{{see also|List of United States Navy enlisted rates|Ranks and insignia of NATO navies enlisted|List of United States Navy ratings}}

Sailors in pay grades E-1 through E-3 are considered to be in apprenticeships.<ref name="NAVYDAT2">{{cite web |title =Group rate marks for pay grades E-1 through E-3 |publisher =U. S. Navy |url =http://www.navy.mil/navydata/ranks/rates/rates2.html |access-date =25 January 2007 |archive-url =https://web.archive.org/web/20061122204030/http://www.navy.mil/navydata/ranks/rates/rates2.html |archive-date =22 November 2006 }}</ref> They are divided into five definable groups, with colored group rate marks designating the group to which they belong: Seaman, Fireman, Airman, Constructionman, and Hospitalman. '''E-4''' to '''E-6''' are [[non-commissioned officer]]s (NCOs), and are specifically called [[Petty officer]]s in the Navy.<ref name="BUPERS">{{cite book|title=United States Navy Uniform Regulations |publisher=BUPERS, U. S. Navy |url=http://buperscd.technology.navy.mil/bup_updt/508/unireg/chapter4/chapter_4sec2pt2.htm |access-date=26 January 2007 |archive-url=https://web.archive.org/web/20061206095348/http://buperscd.technology.navy.mil/bup_updt/508/unireg/chapter4/chapter_4sec2pt2.htm |archive-date=6 December 2006}}</ref> Petty Officers perform not only the duties of their specific career field but also serve as leaders to junior enlisted personnel. E-7 to E-9 are still considered Petty Officers, but are considered a separate community within the Navy. They have separate berthing and dining facilities (where feasible), wear separate uniforms, and perform separate duties.

After attaining the rate of Master Chief Petty Officer, a service member may choose to further their career by becoming a [[Command Master Chief Petty Officer]] (CMC). A CMC is considered to be the senior-most enlisted service member within a command, and is the special assistant to the [[Commanding Officer]] in all matters pertaining to the health, welfare, job satisfaction, morale, use, advancement and training of the command's enlisted personnel.<ref name="MILCMDMC">
{{cite web
 |title = Navy Enlisted Advancement System – Master Chief
 |publisher = Navy Professional Development Center, Military.com
 |url = http://www.military.com/MilitaryCareers/Content/0,14556,Promotions_Navy_E9,00.html
 |access-date = 28 January 2007
|archive-url = https://web.archive.org/web/20061214104540/http://www.military.com/MilitaryCareers/Content/0,14556,Promotions_Navy_E9,00.html
 |archive-date = 14 December 2006
|url-status=live
}}</ref><ref name="IPUBCMC">{{cite web
 |title=Senior And Master Chiefs As Principal Enlisted Advisor
 |work=Military Requirements for Senior and Master Chief Petty Officer Chief
 |publisher=Integrated Publishing
 |url=http://tpub.com/content/advancement/14148/css/14148_26.htm
 |access-date=28 January 2007
|archive-url=https://web.archive.org/web/20070929102806/http://tpub.com/content/advancement/14148/css/14148_26.htm
 |archive-date=29 September 2007
}}</ref> CMCs can be Command level (within a single unit, such as a ship or shore station), Fleet level (squadrons consisting of multiple operational units, headed by a flag officer or commodore), or Force level (consisting of a separate community within the Navy, such as Subsurface, Air, Reserves).<ref name="OPNAV1306">{{cite web
 |title =Chief of Naval Operations OPNAV Instructions 1306.2D
 |publisher =Navydata, U. S. Navy
 |url =http://www.navy.mil/navydata/mcpon/cmcinst.html
 |access-date =28 January 2007
|archive-url =https://web.archive.org/web/20070205214731/http://www.navy.mil/navydata/mcpon/cmcinst.html
 |archive-date =5 February 2007
|url-status=live
}}</ref>

CMC insignia are similar to the insignia for Master Chief, except that the rating symbol is replaced by an inverted five-point star, reflecting a change in their rating from their previous rating (i.e., MMCM) to CMDCM. The stars for Command Master Chief are silver, while stars for Fleet or Force Master Chief are gold. Additionally, CMCs wear a badge, worn on their left breast pocket, denoting their title (Command/Fleet/Force).<ref name="IPUBCMC"/><ref name="BUPERSCPO">{{cite web|title=United States Navy Uniform Regulations CPO Rating |publisher=BUPERS, U. S. Navy |url=http://buperscd.technology.navy.mil/bup_updt/508/unireg/chapter4/chapter_4sec2pt1.htm |access-date=26 January 2007 |archive-url=https://web.archive.org/web/20061206095333/http://buperscd.technology.navy.mil/bup_updt/508/unireg/chapter4/chapter_4sec2pt1.htm |archive-date=6 December 2006}}</ref>

{{USN Enlisted}}