The Directive 2012/19/EU on Waste Electrical and Electronic Equipment (WEEE) (recast) (hereinafter called “the Directive”) entered into force on 13th August 2012. One of the improvements introduced by the Directive is the harmonisation of national registration and reporting requirements under the Directive. Member States' registers for producers of Electrical and Electronic Equipment (EEE) will now have to be integrated more closely. 44 stakeholders from the MS authorities, industry associations, producers and Extended Producer Responsibility (EPR) compliance systems were consulted using different techniques, i.e. structured questionnaire, interviews, and workshops. The proposal for harmonised data structure and format for registration and reporting of EEE producers to the national register is defined and it is complemented with the data model, Unified Modelling Language (UML)1-based diagrams and recommendations. It is also proposed reporting on quarterly basis with deadline of 30th of the month following the respective quarter for provision of the report