The AA1000 Assurance Standard (AA1000AS v3) is an internationally recognised framework for sustainability assurance developed by AccountAbility. It evaluates adherence to the AA1000 Accountability Principles: Inclusivity (stakeholder engagement), Materiality (identification of significant issues), Responsiveness (acting on material issues), and Impact (monitoring and measuring outcomes). AA1000AS offers Type 1 (principles only) and Type 2 (principles + performance) assurance at High or Moderate levels. RSustain provides AA1000 assurance services.
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