National Security NOTAM 6/3366 
On April 16 2025, the FAA issued an updated national security advisory (NOTAM FDC 6/3366) that affects unmanned aircraft operations in proximity to certain sensitive federal facilities. Previous national security NOTAM, FDC 6/4375, focused on the same items of concern but used more restrictive language. This was briefly replaced on April 15, 2026, with FDC 6/2824, before the current FDC 6/3366 went into effect. Under the [...]
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National Security NOTAM 6/3366
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