C1 Sound Power Level Indication
Verified from official sourcesPart 2Article 42Version 1Effective -Verified 22 August 2026
In plain language
Unless it is a fixed-wing drone, your C1 drone or its packaging must display a label showing its guaranteed sound level.
Requirement as structured
Unless it is a fixed-wing UA, a class C1 UAS must have the guaranteed A-weighted sound power level indication affixed on the UA and/or its packaging.
Original regulatory text
unless it is a fixed-wing UA, have the indication of the guaranteed A-weighted sound power level affixed on the UA and/or its packaging as per Part 14;
Applies when
- class marking
- C1
- regulatory category
- Open