Skip to main content

IAASB and WBCSD’s New Collaboration Leads to Further Sustainability and Integrated Reporting

Nov 22, 2017 | New York, New York | English

The International Auditing and Assurance Standards Board (IAASB) has agreed to collaborate with the World Business Council for Sustainable Development (WBCSD) to strengthen international assurance standards on sustainability reporting.

The collaboration supports WBCSD’s Redefining Value program and its objective to incorporate sustainability reporting within mainstream reporting, while ensuring external reporting follows the applicable IAASB international assurance standards (or their national equivalents). This consistency will champion the road to create greater alignment across reporting frameworks and build trust and confidence in sustainability reporting.

The WBCSD engaged IAASB as a key collaborator for this new project because it is the global standard setter for auditing and assurance standards.

Assurance of sustainability information continues to be an issue for preparers and assurance providers. Investors have consistently stated that assurance is important for building confidence in sustainability information in order for the information to be relevant and decision-useful. External assurance provides a critical role in building trust and confidence around sustainability information.

With support and funding from WBCSD, the IAASB approved a major new project to develop voluntary guidance on applying its existing assurance standards to emerging forms of external reporting (EER). EER goes beyond traditional financial reporting to include sustainability (or ESG) information and integrated reporting.

Recent publications by WBCSD and IAASB highlight the need to develop guidance on how EER assurance engagements are performing. This is because companies are at different stages of maturity in applying assurance and may face various barriers or challenges that they need help to overcome. WBCSD considers the independence of IAASB’s decision making to be a fundamental strength in supporting better EER assurance

Rodney Irwin, Managing Director of Redefining Value at WBCSD, said, “The scale of the challenges we face in moving towards a system that considers financial and non-financial information requires unprecedented collaboration. We have chosen to work with the IAASB because of their internationally renowned methods of setting the highest standards and encouraging companies/countries to adhere to them. We look forward to a working together towards an economy that values the true cost, true profit, true value of business.”

Work will begin in December 2017 and draft guidance on key challenges is expected to be published in Q4 2018.


Notes to Editors
This project is part of the Conservation and Financial Markets Initiative, a five-year effort of the Gordon and Betty Moore Foundation that aims to leverage the power of mainstream financial markets in order to help drive the food sector away from practices that degrade natural ecosystems.

About the World Business Council for Sustainable Development (WBCSD)
WBCSD is a global, CEO-led organization of over 200 leading businesses working together to accelerate the transition to a sustainable world. We help make our member companies more successful and sustainable by focusing on the maximum positive impact for shareholders, the environment and societies.

Our member companies come from all business sectors and all major economies, representing a combined revenue of more than $8.5 trillion and 19 million employees. Our global network of almost 70 national business councils gives our members unparalleled reach across the globe. WBCSD is uniquely positioned to work with member companies along and across value chains to deliver impactful business solutions to the most challenging sustainability issues.

Together, we are the leading voice of business for sustainability: united by our vision of a world where more than 9 billion people are all living well and within the boundaries of our planet, by 2050.
Follow us on Twitter and LinkedIn

The IAASB develops auditing and assurance standards and guidance for use by all professional accountants under a shared standard-setting process involving the Public Interest Oversight Board, which oversees the activities of the IAASB, and the IAASB Consultative Advisory Group, which provides public interest input into the development of the standards and guidance. The structures and processes that support the operations of the IAASB are facilitated by the International Federation of Accountants (IFAC). For copyright, trademark, and permissions information, please go to permissions or contact

About the Gordon and Betty Moore Foundation:
The Gordon and Betty Moore Foundation fosters path-breaking scientific discovery, environmental conservation, patient care improvements and preservation of the special character of the Bay Area. Visit or follow @MooreFound