Changes in the Classification of Territorial Units for Statistics (NUTS), introduced as a result of the first revision, known as NUTS 2006 revision, were published in the Official Journal of the European Union at the beginning of 2007 as Commission Regulation (EC) No 105/2007 of 1 February 2007 amending the annexes to Regulation (EC) No 1059/2003 of the European Parliament and of the Council on the establishment of a common classification of territorial units for statistics (NUTS) (OJ L 39, 10.2.2007, p. 1–37). NUTS 2006 revision also includes changes in the classification that occurred as a result of Bulgaria and Romania accession to the European Union. These changes were introduced by the Regulation (EC) No 176/2008 of the European Parliament and of the Council of 20 February 2008 amending Regulation (EC) No 1059/2003 on the establishment of a common classification of territorial units for statistics (NUTS) by reason of the accession of Bulgaria and Romania to the European Union (OJ L 61, 5.3.2008, p. 1–5). During this revision round, modifications of the statistical units of 11 EU Member States were made. These modifications include changes either in the number of NUTS units or in unit boundaries only (without altering the number of units).

Changes adopted in the statistical division of Poland

Regarding the statistical division of Poland into NUTS units, changes included the increase in the number of NUTS level 3 units (podregiony – ‘subregions’) from 45 to 66.

New subregions were introduced in 14 voivodships:

• Dolnośląskie – podregion jeleniogórsko-wałbrzyski was divided into podregion jeleniogórski and podregion wałbrzyski as well as boundaries of podregion legnicki and podregion wrocławski were changed (finally, the number of subregions in the voivodship was increased from 4 to 5);
• Kujawsko-Pomorskie – the new division into subregions was introduced, which resulted in the increased number of subregions (from 2 to 3): podregion bydgoski and podregion toruńsko-włocławski were replaced with podregion bydgosko-toruński, podregion grudziądzki and podregion włocławski;
• Lubelskie – podregion puławski was separated from podregion lubelski, the name of podregion bialskopodlaski was changed to podregion bialski (finally, the number of subregions in the voivodship was increased from 3 to 4);
• Łódzkie – the new division into subregions was introduced, the number of subregions was increased from 3 to 5 (podregion łódzki was diminished to 4 powiats surrounding city of Łódź, from the remaining 8 powiats of this subregion and from all powiats of former podregion piotrkowsko-skierniewicki, three new subregions were created: piotrkowski, sieradzki and skierniewicki);
• Małopolskie – the new division into subregions was introduced, which resulted in the increased number of subregions (from 3 to 5): from 3 powiats having been a part of podregion nowosądecki and from all powiats of former podregion krakowsko-tarnowski three new subregions were created: krakowski, oświęcimski and tarnowski);
• Mazowieckie – the number of subregions was increased from 5 to 6 (podregion warszawski was divided into podregion warszawski wschodni and podregion warszawski zachodni, powiat garwoliński was moved from podregion radomski to podregion warszawski wschodni);
• Opolskie – the new division into two subregions was introduced: nyski and opolski (so far, the entire voivodship was deemed as one podregion opolski);
• Podkarpackie – the new division into subregions was introduced, which resulted in the increased number of subregions (from 2 to 4): podregion rzeszowsko-tarnobrzeski was divided into podregion rzeszowski and podregion tarnobrzeski, podregion krośnieńsko-przemyski was divided into podregion krośnieński and podregion przemyski;
• Podlaskie – the new division into subregions was introduced, which resulted in the increased number of subregions (from 2 to 3): powiat moniecki was detached from podregion łomżyński; powiat bielski, hajnowski and siemiatycki were moved from podregion białostocko-suwalski to podregion łomżyński; podregion białostocki and podregion suwalski were created from the remaining 8 powiats of podregion białostocko-suwalski and powiat moniecki mentioned above);
• Pomorskie – podregion starogardzki was separated from podregion gdański, the name of podregion Gdańsk-Gdynia-Sopot was changed to podregion trójmiejski (finally, the number of subregions in the voivodship was increased from 3 to 4);
• Śląskie – podregion centralny śląski was divided into 5 subregions: bytomski, gliwicki, katowicki, sosnowiecki and tyski, the name of podregion rybnicko-jastrzębski was changed to podregion rybnicki and the name of podregion bielsko-bialski was changed to podregion bielski (finally, the number of subregions in the voivodship was increased from 4 to 8);
• Świętokrzyskie – the new division into two subregions was introduced: kielecki i sandomiersko-jędrzejowski (so far, the entire voivodship was deemed as one podregion świętokrzyski);
• Wielkopolskie – new podregion leszczyński was established from 7 powiats of podregion poznański and two powiats of podregion kaliski, powiat gnieźnieński and powiat wrzesiński were moved from podregion poznański to podregion koniński (finally, the number of subregions in the voivodship was increased from 5 to 6);
• Zachodniopomorskie – podregion Miasto Szczecin and podregion stargardzki were separated from podregion szczeciński (finally, the number of subregions in the voivodship was increased from 2 to 4).

The list of NUTS 2006 units in Poland (as of 1 January 2008)

The division of Poland into NUTS level 1 units in NUTS 2006 revision

The division of Poland into NUTS level 2 units in NUTS 2006 revision
 

The division of Poland into NUTS level 3 units in NUTS 2006 revision

Changes adopted in statistical divisions of other EU countries

Changes introduced by the NUTS 2006 revision also apply to 13 other European Union countries – in three of them at the NUTS level 1, in six of them at NUTS level 2 and in 12 of them at NUTS level 3.

• Belgium: the number of NUTS level 3 units increased from 43 to 44;
• Bulgaria: the NUTS division was adopted as a result of Bulgaria accession to the European Union; the country was divided into 2 units of the NUTS level 1, 6 units of the NUTS level 2 and 28 units of the NUTS level 3;
• Czech Republic: the boundaries between two NUTS level 3 regions were changed;
• Denmark: there was a change of NUTS 2 and NUTS 3 divisions as a result of the country’s administrative reform – the division into 5 units was established at the NUTS level 2 (so far, the entire country was deemed as one unit of this level), while this level was granted the status of an administrative level; at the NUTS level 3 the division into 15 units was replaced with the division into 11 units and this level ceased to be treated as an administrative level;
• Finland: the boundaries of two NUTS level 3 regions were changed;
• Germany: the number of NUTS level 2 units decreased from 41 to 39 and the number of NUTS level 3 units decreased from 439 to 429;
• Italy: the number of NUTS level 3 units increased from 103 to 107;
• Netherlands: the boundaries of two NUTS level 3 regions were changed;
• Romania: the NUTS division was adopted as a result of Romania accession to the European Union; the country was divided into 4 units of the NUTS level 1, 8 units of the NUTS level 2 and 42 units of the NUTS level 3;
• Slovenia: the division into 2 units at the NUTS level 2 was established (so far, the entire country was deemed as one unit of this level)
• Spain: the number of NUTS level 3 units increased from 52 to 59;
• Sweden: the division into 3 units at the NUTS level 1 was established (so far, the entire country was deemed as one unit of this level), moreover, the boundaries of  two NUTS level 3 regions were  changed;
• United Kingdom: the boundaries of two NUTS level 2 units and two NUTS level 3 units were changed.

The number of NUTS units in the EU Member States according to NUTS 2006 revision

The list of NUTS 2006 revision units in the EU Member States