The European Securities and Markets Authority will launch its new weekly commodity derivatives position reporting framework on Sept. 3, 2026, following an earlier postponement. From that date, market participants must submit reports under the updated requirements, technical specifications and validation rules in XML schema version 2.0. The framework applies to market operators and investment firms operating trading venues for commodity derivatives or derivatives on emission allowances. Submissions will use a standardized ISO 20022 XML format through HUBEX, with ESMA validating the data and providing feedback before publishing accepted reports. Updated reporting instructions and the XML schema are available to support implementation.