The French Financial Markets Authority (AMF) issued Instruction DOC-2011-23 to detail the regulatory rules governing the approval procedures, key document establishment, and periodic reporting requirements for OPCI and professional real estate collective investment undertakings. The instruction provides specific guidance on the creation, lifecycle modifications, and investor information obligations for these entities. It references Articles 422-121 and 423-12 of the AMF General Regulation and aligns with EU Regulation No 583/2010.