This dataset is based on: EuroBoundaryMap (EBM) v12.x from EuroGeographics (scale of 1:100.000), Global Administrative Unit Layer (GAUL) 2015 country data from UN/FAO, data from the National Statistical Institute of Türkiye (TurkStat). The different scale levels (1M, 3M, 10M, 20M, 60M, here not provided) were derived by generalisation of the 100K scale. This dataset consists of 2 feature classes (region polygons and boundaries) per scale level. In addition, there is also a label feature class (scale independent). This labelpoint feature class was created with a label inside each NUTS region at the 3 NUTS levels (1 - 3) and countries. Furthermore, two line feature classes were created: one feature class for cartographic joiners to identify where NUTS areas have one or more enclaves and a second line feature class, for cartographic separators to identify where the NUTS limits are in the sea. The arcs of the two latter feature classes are only useful for cartographic purposes and are not meant to identify actual administrative or statistical boundaries stretching into the sea or have any other significance. The boundaries and regions are related to each other through a relationship table. Associated tables contain basic information such as the region's name. The 5 small scale feature classes should be used exclusively for cartographic purposes. This dataset is consistent at all scales with the following datasets: Communes 2016 of European Commission, Eurostat/GISCO, Countries 2016, European Commission - Eurostat/GISCO, Coastlines 2016, European Commission - Eurostat/GISCO. Exclusive Economic Zones 2016, European Commission - Eurostat/GISCO. Different tests were performed to ensure conceptual-, domain- and topological- consistency. Errors in the NUTS/Statistical regions geometry supplied in EBM 12 have been rectified in Scotland for UKN10, UKN11, UKN12, UKN13, UKN14, UKN15, UKN16 and RS110.