The second edition of L138 – Dangerous Substances and explosive atmospheres, which applies to workplaces that manufacture, store, process or use dangerous substances, has been published by the Health and Safety Executive (HSE).

This updated version of the Approved Code of Practice (ACOP) and guidance provides practical advice on how to comply with the Dangerous Substances and Explosive Atmospheres Regulations SI 2002/2776, and the Dangerous Substances and Explosive Atmospheres Regulations (Northern Ireland) SR 2003/152 (DSEAR).

The consolidated ACOP text and guidance has been clarified, simplified, streamlined and restructured to help the reader, and the content has been updated in light of changes to European and domestic legislation, such as substance classification and labelling issues and general fire safety. However, no significant new duties are placed on businesses that are already in compliance with the replaced ACOPs and the Regulations themselves are unchanged.

In addition, this second edition incorporates the following ACOPs, which have now been withdrawn: