The concept of transformational change recognizes the fundamental, radical changes in economic activity required to meet the global goals for climate and sustainable development. Transformational change refers to system change, rather than singular, stand-alone development, and involves multiple actors at multiple levels of society.
The Transformational Change Methodology defines transformational change for greenhouse gas mitigation and provides a stepwise approach to determining the extent to which a policy is truly transformational. It supports governments, financial institutions, programmes and other stakeholders to assess the expected or achieved transformational impact of policies and investments towards alignment with the global goals. The methodology is applicable to all sectors, policies and actions.
The Transformational Change Methodology is accompanied by the Transformational Change Toolkit, which facilitates the application of the methodology and provides further support and guidance on the assessment process. Interested users are encouraged to use both the methodology and toolkit at the same time.

The methodology can be used to assess two types of transformational impacts: processes and outcomes:
- Processes are the interdependent drivers of system change, including technology change, agents of change, incentives for change, and norms and behavioral change.
- These processes lead to outcomes, which are assessed in terms of their scale and sustained nature.
Download
Guide in English
Guide in Spanish
Supporting resources
Capacity building modules
Introduction video: Transformational Change and the ICAT Toolbox
Application of the ICAT Transformational Change Methodology in Argentina
Webinar on Sustainable Development and Transformational Change Assessment Guide
Examples of country applications
Application of the ICAT Transformational Change and Sustainable Development Methodologies to assess disruptive innovations and behaviours in support of climate action in Argentina