At its March 2021 meeting last week, the IAASB approved Non-Authoritative Guidance on Applying ISAE 3000 (Revised) to Extended External Reporting (EER) Assurance Engagements. This guidance marks a significant step forward in supporting the evolving field of assurance for non-financial reporting. To help stakeholders understand the role of both the guidance and ISAE 3000 (Revised), which is the IAASB’s authoritative pronouncement, IAASB Chair Tom Seidenstein has published a new article detailing the guidance and how it supports the application of ISAE 3000 (Revised), growing demands for non-financial information reporting and assurance thereon, and the IAASB’s ongoing commitment to the consistent performance of quality engagements. The guidance will be published in April.