---
title: "CE marking"
description: "CE marking (Conformité Européenne) is the mandatory conformity assessment that declares a product meets the requirements of the applicable European Union directives for sale and use within the EU and EEA. Industrial sonic horns sold into the EU carry CE marking covering — depending on construction and application — the ATEX directive, the Machinery directive, the EMC directive, and where relevant the Pressure Equipment directive."
canonical_url: "https://sylio.co/glossary/ce-marking"
last_updated: "2026-06-28T02:29:38.603Z"
---

**CE marking** (Conformité Européenne) is the mandatory conformity assessment that declares a product meets the requirements of the applicable European Union directives for sale and use within the EU and EEA. Industrial sonic horns sold into the EU carry CE marking covering — depending on construction and application — the [ATEX directive](/glossary/atex-directive), the Machinery directive, the EMC directive, and where relevant the Pressure Equipment directive.

## What CE marking is and isn't

- **Is** — manufacturer's self-declaration (or notified-body-certified for higher-risk products) of compliance with EU law
- **Is** — a passport for free movement within the EU/EEA
- **Is not** — a quality mark
- **Is not** — proof of country of origin

## Related terms

- [ATEX directive](/glossary/atex-directive)
- [UKCA marking](/glossary/ukca-marking)