Model Code of Practice: Excavation work

This model Code of Practice provides guidance on managing risks associated with excavation work. 

This Code applies to all types of excavation work, including: 

• bulk excavations more than 1.5 metres deep
• trenches
• shafts
• tunnels. 

Excavation collapses are dangerous. They can happen quickly, making it difficult for workers and others to escape. 

In this model Code, the word:  

• ‘should’ indicates a recommended course of action, and 
• ‘may’ means an optional course of action. 

The words ‘must’, ‘requires’ or ‘mandatory’ mean that the courses of action are compulsory.

To support the transition from workplace exposure standards (WES) to workplace exposure limits (WEL), this model Code of Practice has been amended to reflect the change in terminology to WEL. The WEL comes into effect from 1 December 2026.

Check with your local regulator to find out if this Code of Practice has legal effect in your jurisdiction.