Military operations area (MOA)

Military operations area (MOA) is designated airspace established to separate certain military training activities from the traffic of aircraft operating under the instrument flight rules system. An MOA does not prohibit all civilian flight, but military activity can create hazards for other aircraft, including high-speed maneuvering and abrupt altitude changes.

What it governs

MOA boundaries, altitudes, and hours are shown on aeronautical charts. The controlling facility can provide information about whether the area is active and what activity is taking place. VFR pilots should obtain the current status before entering and remain alert for military traffic. IFR aircraft may be routed through or around an active MOA according to ATC procedures and traffic conditions.

An MOA is different from prohibited, restricted, or warning airspace. The chart legend and the current FAA publication determine the applicable limitations. A scheduled time on a chart is not proof that the area is active at the moment, and an inactive period is not proof that no traffic is present.

Example

A VFR route crosses an MOA whose published hours overlap the planned flight. The pilot checks the current status with the controlling facility, reviews an alternate route, and maintains a careful lookout if crossing is appropriate. The pilot does not treat the MOA boundary as a guarantee that military aircraft will remain outside it.

Why it matters

Military training can involve aircraft that are difficult to see and moving faster than nearby general aviation traffic. Knowing the status and purpose of the area helps a pilot choose a route and communication plan that reduce surprises.

Review current charts, the Chart Supplement, and the FAA Aeronautical Information Manual. This page does not provide current activation status for any MOA.

Related terms and tools

• Class E airspace
• Visual flight rules
• FAA airspace resources