<P> (1994--present) </P> <P> Chief Master Sergeant (CMSgt) is the ninth, and highest, enlisted rank in the U.S. Air Force, just above Senior Master Sergeant, and is a senior non-commissioned officer rank . The official term is "Chief Master Sergeant" or "Chief". </P> <P> Attaining the rank of Chief Master Sergeant is the pinnacle of an Air Force enlisted person's career . Some Chief Master Sergeants manage the efforts of all enlisted personnel within their unit or major subsection while others run major staff functions at higher headquarters levels . All Chief Master Sergeants are expected to serve as mentors for non-commissioned officers and junior enlisted members, and to serve as advisers to unit commanders and senior officers . </P>

What rank is a chief in the air force