how long does it take to become a lieutenant colonel in the air force
Lieutenant colonel (United States) Promotion to lieutenant colonel is governed by Department of Defense policies derived from the Defense Officer Personnel Management Act (DOPMA) of 1980 for officers in the Active Component and its companion Reserve Officer Personnel Management Act (ROPMA) for officers in the Reserve Component (e.g., Reserve and National Guard). DOPMA guidelines suggest 70% of majors should be promoted to lieutenant colonel after serving a minimum of three years at their present rank and after attaining 15â€“17 years of cumulative commissioned service.
Major general (United States) In the United States Army, United States Marine Corps, and United States Air Force, major general is a two-star general-officer rank, with the pay grade of O-8. Major general ranks above brigadier general and below lieutenant general.[1][Note 1] A major general typically commands division-sized units of 10,000 to 15,000 soldiers. Major general is equivalent to the two-star rank of rear admiral in the United States Navy and United States Coast Guard and is the highest permanent rank during peacetime in the uniformed services. (The higher ranks are temporary ranks linked to specific positions, although virtually all officers who have been promoted to those ranks are approved to retire at their highest earned rank.)