On 1 November 2004, the CMSAF's rank insignia was updated to include the
Great Seal of the United States and two stars in the upper field. This puts the insignia in line with those of the
Army and
Marine Corps which have similar insignia to denote their senior enlisted servicemen. The laurel wreath around the star in the lower field remained unchanged, to retain the legacy of the Chief Master Sergeants of the Air Force. The CMSAF wears distinctive collar insignia. Traditionally, enlisted airmen's collar insignia was silver-colored "U.S." within a ring. The CMSAF's collar brass replaced the standard ring with a silver laurel wreath. The CMSAF also wears a distinctive cap device. Enlisted airmen's cap device is the
Coat of Arms of the United States, surrounded by a ring, all struck from silver-colored metal. Much as with the position's distinctive collar brass, the ring is replaced with a laurel wreath for the CMSAF. The
sergeant major of the Army, chief master sergeant of the Air Force,
chief master sergeant of the Space Force,
senior enlisted advisor to the chief of the National Guard Bureau, and the
senior enlisted advisor to the chairman are the only members of the United States armed forces below the rank of
brigadier general/
rear admiral (lower half) to be authorized a positional color (flag). The Chief Master Sergeant of the Air Force colors were authorized in January 2013. The official term of address for the CMSAF is "Chief Master Sergeant of the Air Force" or "Chief." File:E9 USAF CMSAF (1967–1991).svg|CMSAF Sleeve Insignia 1967–1991 File:E9d USAF CMSAF (1994–2004).svg|CMSAF Sleeve Insignia 1991–2004 File:E9d USAF CMSAF.svg|CMSAF Sleeve Insignia 2004–present File:CMSAF CAP INSIGNIA.png|CMSAF Cap Insignia File:CMSAF Lapel Insignia.png|CMSAF Lapel Insignia ==List of chief master sergeants of the Air Force==