This edition 5.0 (2016) of the IECEx Bulletin is a major update and replaces edition 4.0 (2011).
The IECEx Bulletin contains 4 Sections.

Section 1 - Introduction:
- Explanation of the IECEx System and its four Schemes
- Executive of the The IECEx System
- Member Countries

Section 2 - Matrix:
- A comprehensive matrix of all member countries and their adoption method of IEC Standards. The matrix is provided as a quick index for Section 3 - National Differences.

Section 3 - National Differences:
- IEC Standard numbered files with detailed information on Member Countries adoption and National Differences to IEC Standards

Section 4 - Ex Certification Bodies (ExCBs):
- Details of all ExCBs and ExTLs