Marking Requirements for Small UA Registered Under Part 48

Verified from official sources
AC 91-57C ¶ 2.2.8.3Version 1Effective -Verified 22 August 2026

In plain language

Your small drone's registration number must be clearly visible on the outside of the drone and stuck on securely so it won't fall off during flight.

Requirement as structured

For small unmanned aircraft registered under 14 CFR part 48, the registration marking must be legible, securely affixed for the flight duration, and displayed on an external surface.

Original regulatory text

For small UA registered under part 48, § 48.205 requires that the marking be maintained in a condition that is legible, affixed in a manner that ensures it will remain affixed for the duration of each flight, and legibly displayed on an external surface of the UA.

Applies when

country
United States
operation
recreational
max mtom kg
25
regulatory category
General