The 7110.65 mandates that ATC must advise pilots of hazardous weather within ___NM of their sector.

The correct understanding of this guideline is essential for maintaining safety in aviation. The 7110.65, which is a directive that governs air traffic control operations, establishes that controllers must actively communicate information about hazardous weather conditions to pilots within 150 nautical miles (NM) of their sector. This requirement is in place to ensure that pilots are adequately informed of potential weather-related hazards that could impact their flight path, allowing them to make informed decisions regarding safety and flight operations. By keeping pilots aware of weather phenomena such as thunderstorms, turbulence, or severe winds, air traffic controllers contribute significantly to the overall safety of air travel. The specified distance of 150 NM strikes a balance between providing essential weather information and manageable data handling for ATC personnel.