AccountancyEurope: CSRD readiness: limited assurance approach to transition plans

11 December 2024

In this series of 3 papers, we share some key aspects on the assurance practitioner’s approach to double materiality assessment, value chain information and transition plans to contribute to the CSRD implementation and readiness debate.

Briefing papers: 

Transition plans

Double materiality

Value chain information


The Corporate Sustainability Reporting Directive (CSRD) requires companies to draw up sustainability reports in accordance with the European Sustainability Reporting Standards (ESRS). According to the CSRD, these reports will also be subject to assurance. The first sustainability reporting and assurance reports will be published in 2025 on 2024 data.

Professional assurance standards such as the International Standard on Sustainability Assurance (ISSA 5000) and CEAOB guidelines outline principles for sustainability reporting assurance engagements. The European Commission will adopt an EU limited assurance standard to define expectations for practitioners conducting limited assurance engagements in the EU on the basis of CEAOB technical advice including adds-on and possible carve-outs to ISSA 5000 (see EC letter to CEAOB).

In this series of 3 papers, we share some key aspects on the assurance practitioner’s approach to double materiality assessment, value chain information and transition plans to contribute to the CSRD implementation and readiness debate.

These three short papers are meant to provide a high-level explanation of the limited assurance approach rather than a detailed roadmap of procedures. They are primarily addressed to stakeholders such as users of assurance and structured in three parts:

Transition plans

Facts and principles – CSRD/ESRS/CSDDD

Climate change disclosures are subject to double materiality assessment. If material, as per the ESRS E1, companies shall disclose their climate change mitigation transition plan and actions, including[1]:

If the undertaking does not have a transition plan in place, it shall indicate whether, and, if so, when it will adopt one....

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