Infrastructure Sustainability Rating
We are committed to delivering sustainable outcomes in the design, construction and operation of our infrastructure.
We use the Infrastructure Sustainability (IS) Rating Scheme, Australia’s only comprehensive sustainability rating system, to keep us on track.
| Project Value | IS Rating Requirement |
| >$100 million | Formal assessment and rating |
| $20 million - $100 million | Use rating, but do not undergo formal assessment |
Details of our projects that have achieved IS ratings can be viewed on the Infrastructure Sustainability Council website.