---
title: GS — GS mark (Geprüfte Sicherheit)
mark: GS
obligation: Voluntary
scheme_type: Third-party certification
region: Europe
issuer: German-accredited GS certification bodies (TÜV organisations, VDE and others)
source_url: "https://www.zls-muenchen.bayern.de/stellen/gs_stellen/index.htm"
verified_at: 2026-08-19
version: 1
canonical: "https://tsinghu.com/en/certifications/tuv-gs"
publisher: Shenzhen Tsinghu Technology Co., Ltd. (agency, not a certification body)
license: CC-BY-4.0
---

# GS · GS mark (Geprüfte Sicherheit)

A voluntary safety mark under Germany's Product Safety Act, issued by German-accredited bodies. Not legally required, but widely expected in German-speaking retail channels and procurement tenders, usually alongside CE.

| | |
|---|---|
| Issued by | German-accredited GS certification bodies (TÜV organisations, VDE and others) |
| Assessment route | Third-party certification |
| How it is obtained | Test against the applicable EN standards, pass an initial factory audit and accept annual surveillance audits. |
| Marking rules | The GS mark must be used with the issuing body's identifier and only on models covered by the certificate. |
| Validity and upkeep | Certificates typically run five years, maintained by annual factory audits. |

## Accepted in

- [Germany (grid connection and recycling)](https://tsinghu.com/en/markets/de)
- [European Union](https://tsinghu.com/en/markets/eu)


## Applies to product lines

- [EVSE · EV charging equipment](https://tsinghu.com/en/products/evse)
- [LIB · Batteries & cells](https://tsinghu.com/en/products/lib)
- [PPS · Portable power stations](https://tsinghu.com/en/products/pps)