Good Practice in Impact Assessment | Resources

Good Practice in Impact Assessment | Resources

A set of resources have been developed by the Special Interest Sector for Impact Assessment (SIS-IA) to support effective implementation of impact assessment (IA). Documents have been prepared by experienced IA practitioners within the SIS-IA to provide guidance on good practice in IA.

While they have been written to apply generally in Australia and New Zealand, IA practitioners should also consider the specific requirements of the jurisdiction within which they operate.

Click here to view Guidelines for impact assessment

These guidelines describe the general principles which should govern and guide the IA process and the practices that should be followed at each stage of the IA process:

Screening | to determine the appropriate form of IA for a project, in particular whether it justifies the preparation and publication of a formal environmental impact statement (EIS) or similar public document.‚Äč

Scoping | to determine the environmental issues relevant to a project and the points in the decision-making process when these issues need to be addressed.

Technical analysis and assessment | in terms of understanding the environmental effects (adverse and beneficial) of a proposal, comparing options for achieving the proposals objectives, and identifying mitigation measures or offsets for adverse impacts.

Reporting and stakeholder involvement | commonly through an EIS or similar document for government agency and community response, although other forms of consultation may also be implemented, including measures implemented outside the statutory review process.

Independent review | review of the EIS or other public document and agency/ community responses by the authority responsible for administering the statutory review process.

These guidelines are aimed at all environmental practitioners involved in IA, in particular, those relatively new to the process as well as proponents and others who are involved or anticipate being involved in IA.

Good Practice Statements on Environmental and Social Impact Assessment

This set of 25 good practice statements was prepared by a committee of IA practitioners in the South-East Queensland Division of EIANZ. They are aimed at more experienced IA practitioners and set out the characteristics of good practice IA so that it:

  • Achieves its purpose
  • Assists with orderly development
  • Rigorously evaluates impacts
  • Achieves desired performance outcomes.

The committee also looked at opportunities for reform of IA in Queensland. Again, many of the issues considered also appear to be applicable to other jurisdictions. The full set of reports is available below.

Good Practice Statements on Environmental & Social Impact Assessment

Good practice scoping in impact assessment

Good practice scoping in impact assessment

Scoping is the process of identifying and prioritising the key issues associated with a project to be assessed in an impact assessment and the extent of work that needs to be undertaken to address those issues. The SIS-IA considers scoping is a process that is important to effective IA, but not always suitably undertaken.

The SIS-IA has prepared a set of ‘good practice’ guidelines to encourage a more consistent and effective approach to scoping across all jurisdictions. This is supported by a background paper which sets out current issues and concerns with scoping practices.

The SIS-IA also developed a FasTip’ on scoping in IA for the International Association for Impact Assessment. FasTips aim to be a small but useful piece of practical and quick advice.

Guidelines for selecting an environmental consultant

The purpose of this document is to assist proponents (clients) to select and engage consultants who provide advice about the planning, assessment and implementation of development projects or other activities.

Choosing the right consultant can mean the difference between the success or failure of a project. Impact assessment is a specialist field and a good consultant can save considerable time and money by:

  • reviewing project design for any ‘show-stoppers’ that would prevent a project receiving government approval
  • ensuring environmental studies are targeted towards the issues that are important, and avoiding unnecessary work
  • steering proponents through the regulatory processes in the most efficient way
  • assisting with government negotiations to reduce project risk from a refusal or an approval with cost-prohibitive conditions.

Guidance on strategic environmental assessment (SEA)

The SEA Working Group has developed guidance and other material on SEA. These are available on the SEA page.

EIANZ Position Statement – Incorporating environmental considerations into development projects

A draft position statement on this topic was endorsed by the SIS-IA and forwarded to the EIANZ Policy and Practice Standing Committee for consideration. It is expected this draft statement will be released for comment shortly.

Other resources

There are a range of impact assessment publications and other resources on the Resources page on the International Association for Impact Assessment website. These include publications and brief videos on impact assessment topics. Some presentations and papers from previous IAIA conferences can also be found on the IAIA Annual Conference website.


The SIS-IA welcomes any feedback on the above documents and on topics for future good practice documents. Suggestions and feedback can be emailed to the Chair of the SIS-IA, Lachlan Wilkinson.