To become a Chief Master Sergeant in the United States Air Force (USAF), you must first join the service as an enlisted airman. To become an enlisted airman, you must be over 17 and not older than 42.

The U.S. Air Force has selected 1,549 master sergeants for promotion to senior master sergeant for a selection rate of 11.87 percent. The senior master sergeant promotion list is available on the ...

The Air Force Chief Evaluation Board has selected 472 senior master sergeants for promotion to chief master sergeant out of 2,142 eligible for a selection rate of 22.04 percent. The chief master ...