Beyond Visual Line Of Sight (BVLOS)

The operation of a UAS beyond the visual capability of the flight crew members (i.e., remote pilot in command [RPIC], the person manipulating the controls, and visual observer [VO]), if used to see the aircraft with vision unaided by any device other than corrective lenses, spectacles, and contact lenses.

Source: Pilot Contoller Glossary (PCG)

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