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The 10 guidance documents that comprise the ICAT series of guidance provide methods focused on helping users assess the impacts of policies and actions that:

  • Reduce greenhouse gas emissions,
  • Achieve sustainable development outcomes, and
  • Drive transformational change.

More than 160 technical working group members contributed to this initial guidance. Comments on the guidance will help ensure that the guidance is clear and meets country needs. 

Most comments have been provided via Collaborase

Collaborase is an online system that facilitates transparency by collating all submitted comments on one interactive platform. It allows commenters to provide comments by section, save comments and return at a later date and update previously made comments. Collaborase can also be easily accessed with mobile devices such as a smartphone.

A series of webinars were hosted at the beginning of the consultation period to provide an introduction to the guidance. You can access the webinar recordings and download the slides at the links provided below:


All draft guidance documents and a comment template are also available below, provided for those unable to access the software and/or who needed to download documents to review offline. 

ICAT Comment Template

Introductory Guide First Draft

GHG Guidance:

Renewable Energy Guidance First Draft | Buildings Efficiency Guidance First Draft | Transport Pricing Guidance First Draft | Agriculture Guidance First Draft | Forest Guidance First Draft

Other Impact Assessment Guidance:

Sustainable Development Guidance First Draft | Transformational Change Guidance First Draft

Supporting Guidance:

Stakeholder Participation Guidance First Draft | Technical Review Guidance First Draft | Non-State and Subnational Action Guidance