The U.S. Air Force has selected 5,166 technical sergeants for promotion to master sergeant. The overall selection rate was 25.61 percent, with an average selectee overall score of 523.22.

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.