Which ranks are considered Field Grade?

• A. O-4 to O-6
• B. O-7 to O-9
• C. E-7 to E-9
• D. W-3 to W-5

Answer: (A)

Field Grade officers are the commissioned officers who sit between company-grade and general officers. They are the ranks O-4 through O-6, namely Major, Lieutenant Colonel, and Colonel. These officers typically command at the battalion level or serve in senior staff roles, requiring more experience and broader responsibility than lower-ranking, company-grade officers.

The other categories don’t fit the term: general officers are at O-7 to O-9, warrant officers (W-3 to W-5) are senior technical specialists, and enlisted personnel (E-7 to E-9) are not officers.