Published March 2024. This version replaces ‘Comment on the approach for classifying sites into green, yellow or red’ published in 2022.

This guidance has been prepared to give help in applying the categorisation systems given in Safe Intrusive Activities on Land Potentially Impacted by Contamination produced by the BDA. It is vital that the full published guidance is read to appreciate the impact of the potential hazards which may be present on contaminated land.

This AGS Guidance document is a high-level overview of Safe Intrusive Activities on Land Potentially Impacted by Contamination by the BDA and does not represent formal guidance on the Classification of Potentially Contaminated Sites for Intrusive Investigation Activities.