Which statement correctly differentiates NOTAMs from D NOTAMs?

Which statement correctly differentiates NOTAMs from D NOTAMs?

• A. NOTAMs are time critical aeronautical information; D NOTAMs require wide dissemination via telecommunication and pertain to navigational aids, airports, facilities and procedures.
• B. NOTAMs include only NOTAMs for international flights; D NOTAMs for domestic flights.
• C. NOTAMs are published monthly; D NOTAMs published daily.
• D. NOTAMs only apply to military operations; D NOTAMs apply to civil operations.

Answer: (A)

NOTAMs are notices to airmen that provide time-critical aeronautical information that could affect flight safety. The distinction with D NOTAMs is in how broadly the information is disseminated and what it typically covers: D NOTAMs are those that must be widely distributed via telecommunication networks and pertain to navigational aids, airports, facilities, and procedures. So this combination—time-sensitive notices for flight safety, with D NOTAMs being the widely disseminated subset covering those specific aeronautical elements—is what sets them apart. The other statements don’t fit because NOTAMs aren’t limited to international flights, aren’t published on a fixed monthly or daily schedule, and NOTAMs aren’t restricted to military operations.

NOTAMs are notices to airmen that provide time-critical aeronautical information that could affect flight safety. The distinction with D NOTAMs is in how broadly the information is disseminated and what it typically covers: D NOTAMs are those that must be widely distributed via telecommunication networks and pertain to navigational aids, airports, facilities, and procedures. So this combination—time-sensitive notices for flight safety, with D NOTAMs being the widely disseminated subset covering those specific aeronautical elements—is what sets them apart.

The other statements don’t fit because NOTAMs aren’t limited to international flights, aren’t published on a fixed monthly or daily schedule, and NOTAMs aren’t restricted to military operations.