Drone Pilot Practice Exam 2025 – Complete Test Prep Guide

The drone registration number must be fixed to the outside of the UAV in plain sight to ensure compliance with regulatory requirements. This visibility is important for several reasons, including enabling authorities or individuals to easily identify the drone, which enhances accountability and aids in recovery in case the drone gets lost.

Having the registration number affixed externally also helps law enforcement and regulatory bodies quickly verify that the drone is legally registered, thereby contributing to overall airspace safety and security. Compliance with this requirement reflects adherence to the Federal Aviation Administration (FAA) guidelines, which mandate that the registration number should be displayed in a manner that can be read without disassembling the drone.

Options that suggest placing the number in a less visible location—such as inside the UAV, on the remote controller, or kept on paper with the pilot's documentation—would not meet the visibility requirement and could hinder the identification process in the event of an incident. Thus, the correct response aligns with the need for immediate and clear identification of the drone.