---
title: "Guaranteed sound power level — EASA Definition · Avioverse"
description: "Article 3, Regulations (EU) 2019/947 and 2019/945: ‘guaranteed sound power level’ means a sound power level determined in accordance with the…"
url: "https://avioverse.aero/glossary/easa/guaranteed-sound-power-level"
---

# guaranteed sound power level

EASA defines “guaranteed sound power level” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

> ‘guaranteed sound power level’ means a sound power level determined in accordance with the requirements laid down in Part 13 of the Annex which includes the uncertainties due to production variation and measurement procedures and where the manufacturer, or his authorised representative established in the Community, confirms that according to the technical instruments applied and referred to in the technical documentation it is not exceeded;

Article 3 · Unmanned Aircraft Systems · Regulations (EU) 2019/947 and 2019/945 · Easy Access Rules, 29 Jun 2026 revision · [Read Article 3](https://avioverse.aero/regulations/easa/uas/cover-regulation-to-delegated-regulation-eu-2019/chapter-i-general-provisions#article-3)

## Defined in the same article

- [accreditation](https://avioverse.aero/glossary/easa/accreditation)
- [authorised representative](https://avioverse.aero/glossary/easa/authorised-representative)
- [C2 link](https://avioverse.aero/glossary/easa/c2-link)
- [CE marking](https://avioverse.aero/glossary/easa/ce-marking)
- [certified category](https://avioverse.aero/glossary/easa/certified-category)
- [conformity assessment](https://avioverse.aero/glossary/easa/conformity-assessment)
- [conformity assessment body](https://avioverse.aero/glossary/easa/conformity-assessment-body)
- [control and monitoring unit (CMU)](https://avioverse.aero/glossary/easa/control-and-monitoring-unit)