International Auditing and Assurance Standards Board

Outlines the key stages of an assurance engagement, expectations of assurance professionals, and common types of information included in Extended External Reporting (EER) assurance engagements. The guidance has been developed to support assurers who are applying the ISAE 3000.

Use this resource to:

• Verification, assurance and certification: This guidance is not aimed at organisations but provides detailed information on issues that arise when assuring EER such as sustainability performance information, which organisations may still find useful.

A standard for assurance professionals that covers any assurance engagement other than audits or reviews of historical financial information.

Use this resource to:

• Verification, assurance and certification: Organisations may require that their third-party assurance providers apply this standard to ensure adherence to global best practices.