To fill an E-8 position, a member must have served as an E-7 for how many years?

• A. 1 year
• B. 2 years
• C. 4 years
• D. 3 years

Answer: (D)

Time in grade refers to how long you have held the current rank, not your total time in service. To fill an E-8 position, a member must have served as an E-7 for at least three years. This minimum ensures they've had enough time in leadership duties at the E-7 level before moving up. Shorter durations don’t meet the requirement, while longer durations also satisfy it since the rule is “at least three years.” Other factors like performance and vacancies influence promotion, but the minimum time in the E-7 grade is the key gating criterion.