Unique Registration Number Required for Part 107 Operations

Verified from official sources
AC 91-57C ¶ 2.2.8.2Version 1Effective -Verified 22 August 2026

In plain language

If you fly under Part 107, you cannot share registration numbers between drones; each drone must have its own unique registration number.

Requirement as structured

Any small UA operated under Part 107 must have a unique registration number, regardless of its weight.

Original regulatory text

However, any small UA operated under part 107, regardless of weight must have a unique registration number.

Applies when

country
United States
operation
part_107
operation regime
part_107
aircraft category
small unmanned aircraft (under 55 lb)
regulatory category
General