On 16 June 2026, Australian Industrial Chemicals Introduction Scheme (AICIS) published a new Guide on Creating a Chemical Dataset in IUCLID6 to assist applicants preparing assessment certificate applications. The guide explains how to create, manage, validate, and submit a chemical dataset in IUCLID6, which must be prepared separately before being uploaded as a dossier through AICIS Business Services. It is intended for applicants, agents, and chemical data providers involved in assessment certificate applications. The guidance provides step-by-step instructions for setting up IUCLID6, creating substance datasets, navigating key data fields, managing reusable entities, and handling confidential business information. It also explains how to validate datasets against AICIS requirements, export dossiers in the correct format, and upload compliant IUCLID6 files for assessment. Additional sections describe how to report read-across information and request information waivers where appropriate. According to AICIS, the guide aims to improve the quality and consistency of chemical dossiers, reduce application errors and processing delays, and support efficient regulatory assessments. The guidance also promotes the reuse of chemical data across regulatory frameworks, helping businesses streamline submissions while meeting Australia's industrial chemicals regulatory requirements.