Liste des régions les plus développées en application de l’article 3
| | | NUTS 2010
| BE10 | Région de Bruxelles-Capitale/Brussels Hoofdstedelijk Gewest |
| BE21 | Prov. Antwerpen |
| BE22 | Prov. Limburg (B) | (new name Prov. Limburg (BE)]
| BE23 | Prov. Oost-Vlaanderen |
| BE24 | Prov. Vlaams-Brabant |
| BE25 | Prov. West-Vlaanderen |
| BE31 | Prov. Brabant wallon |
| CZ01 | Praha |
| DK01 | Hovedstaden |
| DK03 | Syddanmark |
| DK04 | Midtjylland |
| DK05 | Nordjylland |
| DE11 | Stuttgart |
| DE12 | Karlsruhe |
| DE13 | Freiburg |
| DE14 | Tübingen |
| DE21 | Oberbayern |
| DE22 | Niederbayern |
| DE23 | Oberpfalz |
| DE24 | Oberfranken |
| DE25 | Mittelfranken |
| DE26 | Unterfranken |
| DE27 | Schwaben |
| DE30 | Berlin |
| DE50 | Bremen |
| DE60 | Hamburg |
| DE71 | Darmstadt |
| DE72 | Gießen |
| DE73 | Kassel |
| DE91 | Braunschweig |
| DE92 | Hannover |
| DE94 | Weser-Ems |
| DEA1 | Düsseldorf |
| DEA2 | Köln |
| DEA3 | Münster |
| DEA4 | Detmold |
| DEA5 | Arnsberg |
| DEB1 | Koblenz |
| DEB2 | Trier |
| DEB3 | Rheinhessen-Pfalz |
| DEC0 | Saarland |
| DED3 | Leipzig | (DED3 engloble DED5 Leipzig et une partie de DED4 Chemnitz)
| DEF0 | Schleswig-Holstein |
| IE01 | Border, Midland and Western |
| IE02 | Southern and Eastern |
| GR30 | Αττική (Attiki) | (nouveau code EL30)
| GR42 | Νότιο Αιγαίο (Notio Aigaio) | (nouveau code EL42)
| ES11 | Galicia |
| ES12 | Principado de Asturias |
| ES13 | Cantabria |
| ES21 | País Vasco |
| ES22 | Comunidad Foral de Navarra |
| ES23 | La Rioja |
| ES24 | Aragón |
| ES30 | Comunidad de Madrid |
| ES41 | Castilla y León |
| ES51 | Cataluña |
| ES52 | Comunidad Valenciana |
| ES53 | Illes Balears |
| ES63 | Ciudad Autónoma de Ceuta |
| FR10 | Île-de-France |
| FR21 | Champagne-Ardenne |
| FR23 | Haute-Normandie |
| FR24 | Centre |
| FR26 | Bourgogne |
| FR42 | Alsace |
| FR51 | Pays de la Loire |
| FR52 | Bretagne |
| FR61 | Aquitaine |
| FR62 | Midi-Pyrénées |
| FR71 | Rhône-Alpes |
| FR82 | Provence-Alpes-Côte d’Azur |
| ITC1 | Piemonte |
| ITC2 | Valle d’Aosta/Vallée d’Aoste |
| ITC3 | Liguria |
| ITC4 | Lombardia |
| ITD1 | Provincia Autonoma Bolzano/Bozen | (nouveau code et nouveau nom ITH1 Provincia Autonoma di Bolzano/Bozen)
| ITD2 | Provincia Autonoma Trento | (nouveau code et nouveau nom ITH2 Provincia Autonoma di Trento)
| ITD3 | Veneto | (nouveau code ITH3)
| ITD4 | Friuli-Venezia Giulia | (nouveau code ITH4)
| ITD5 | Emilia-Romagna |
| ITE1 | Toscana | (nouveau code ITI1)
| ITE2 | Umbria | (nouveau code ITI2)
| ITE3 | Marche |
| ITE4 | Lazio | (nouveau code ITI4)
| CY00 | Κύπρος/Kıbrıs (Kýpros/Kıbrıs) | (nouveau nom Κύπρος (Kýpros)]
| LU00 | Luxembourg (Grand-Duché) | (nouveau nom Luxembourg)
| HU10 | Közép-Magyarország |
| NL11 | Groningen |
| NL12 | Friesland (NL) |
| NL13 | Drenthe |
| NL21 | Overijssel |
| NL22 | Gelderland |
| NL23 | Flevoland |
| NL31 | Utrecht |
| NL32 | Noord-Holland |
| NL33 | Zuid-Holland |
| NL34 | Zeeland |
| NL41 | Noord-Brabant |
| NL42 | Limburg (NL) |
| AT12 | Niederösterreich |
| AT13 | Wien |
| AT21 | Kärnten |
| AT22 | Steiermark |
| AT31 | Oberösterreich |
| AT32 | Salzburg |
| AT33 | Tirol |
| AT34 | Vorarlberg |
| PL12 | Mazowieckie |
| PT17 | Lisboa |
| PT30 | Região Autónoma da Madeira |
| RO32 | București - Ilfov |
| SI02 | Zahodna Slovenija |
| SK01 | Bratislavský kraj |
| FI13 | Itä-Suomi | (fusionné en FI1D Pohjois- ja Itä-Suomi)
| FI1A | Pohjois-Suomi | (fusionné en FI1D Pohjois- ja Itä-Suomi)
| FI18 | Etelä-Suomi | (divisé en FI1B Helsinki-Uusimaa et FI1C Etelä-Suomi)
| FI19 | Länsi-Suomi |
| FI20 | Åland |
| SE11 | Stockholm |
| SE12 | Östra Mellansverige |
| SE21 | Småland med öarna |
| SE22 | Sydsverige |
| SE23 | Västsverige |
| SE31 | Norra Mellansverige |
| SE32 | Mellersta Norrland |
| SE33 | Övre Norrland |
| UKC2 | Northumberland and Tyne and Wear |
| UKD2 | Cheshire |
| UKD3 | Greater Manchester |
| UKE2 | North Yorkshire |
| UKE4 | West Yorkshire |
| UKF1 | Derbyshire and Nottinghamshire |
| UKF2 | Leicestershire, Rutland and Northamptonshire |
| UKG1 | Herefordshire, Worcestershire and Warwickshire |
| UKG3 | West Midlands |
| UKH1 | East Anglia |
| UKH2 | Bedfordshire and Hertfordshire |
| UKH3 | Essex |
| UKI1 | Inner London |
| UKI2 | Outer London |
| UKJ1 | Berkshire, Buckinghamshire and Oxfordshire |
| UKJ2 | Surrey, East and West Sussex |
| UKJ3 | Hampshire and Isle of Wight |
| UKJ4 | Kent |
| UKK1 | Gloucestershire, Wiltshire and Bristol/Bath area |
| UKK2 | Dorset and Somerset |
| UKL2 | East Wales |
| UKM2 | Eastern Scotland |
| UKM3 | South Western Scotland |
| UKM5 | North Eastern Scotland |