The European Fire Database is an important component of the European Forest Fire Information System (EFFIS), the EC focal point of information on forest fires established by the Joint Research Centre (JRC) and the Directorate General for Environment to provide up to date and harmonized information on forest fires in Europe. As of 2014 EFFIS is part of the Forest Information System for Europe (FISE), following the new EU Forest Strategy adopted in 2013. The Fire Database is the largest repository of information on individual fire events in Europe and is the end product of a long collaboration between European countries and the European Commission on forest fires. It contains forest fire information compiled by member countries of the EFFIS network. Fire data provided each year by national authorities are checked, stored and managed by JRC within the fire database. Each country has its own internal rules of reporting on individual fire events which is in most cases done mainly for administrative purposes. To widen the exploitation potential of the national fire data within the European Fire Database and to enhance data harmonization and data quality control, the common data set up has been gradually modified over the years. A common and in depth understanding of latest definitions and data specifications is of paramount importance. This report intends to contribute to these efforts illustrating in detail the data stored in the European Fire Database, their definitions, the formats required for country data submission and the process of data validation and storage carried out at JRC.