---
title: The IECEx Scheme
description: "A recently introduced certification process is the **IECEx scheme**, which is a move towards truly global certification. However, acceptance in the EU will still require the equipment to comply with ATEX, and to display the ATEX marking as well as…"
url: "https://www.eicstech.com/kb/standards-certification-and-marking/basics-on-iecex-scheme/"
updated: "2022-05-31"
category: Explosion Proof Basics / Standards, Certification and Marking
---

# The IECEx Scheme

A recently introduced certification process is the **IECEx scheme**, which is a move towards truly global certification. However, acceptance in the EU will still require the equipment to comply with ATEX, and to display the ATEX marking as well as the EX marking according to the constructional standards (if these have been used to meet the ESR’s).

Where equipment is certified under the IECEx scheme the IECEx Conformity Mark as illustrated below may be displayed.

![](https://www.eicstech.com/wp-content/uploads/2022/05/iecex-scheme.png)
The IECEx Conformity Mark

Equipment to the latest IEC standards must carry the Ex marking which now includes the EPL. Examples are:

**Ex e II T5 Gb                                            Ex d IIB T4 Gb                                                   Ex ia IIC T6 Ga**

**Ex de I Mb                                        Ex ma IIIC T123°C Da                                 Ex d [ia Ga] IIC**

**Equipment that is certified for gasses and for dusts, or for mining and for surface industries, must carry separate, full, marking for each.**

Alternative IEC marking for EPL

IEC standards also allow alternative marking by showing the level of protection letter added to the symbol for the type of protection. For example

**Ex ma IIC T4                                         Ex nRc IIB T3                                                       Ex eb II T6       **