International Territorial Level

Geographic classification system in the United Kingdom / From Wikipedia, the free encyclopedia

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International Territorial Level (ITL) is a geocode standard for referencing the subdivisions of the United Kingdom for statistical purposes, used by the Office for National Statistics (ONS). From 2003 and until 2020 it functioned as part of the European Union and European Statistical System's geocode standard Nomenclature of Territorial Units for Statistics or NUTS.

Quick facts: ITL 1 regions, Category, Location, Created, N...
ITL 1 regions
  • Also known as:
  • NUTS 1 regions of the United Kingdom
CategoryStatistical regions
LocationUnited Kingdom
  • 1994 (as NUTS 1)
Number12 (as of 2010)
Possible status
Populations1.8–9 million
  • ITL 2 regions

Following Brexit, the ONS set to develop a domestic statistical classification framework separate from NUTS. Currently, the ITLs are a mirror to the pre-existing NUTS system, they retain the same three level hierarchy and boundaries used for NUTS in the United Kingdom since 2018, with the next review scheduled for 2024. ITLs are set to follow a similar review timetable to NUTS, being reviewed every three years. The ONS will develop new official GSS codes of ITL geography aligned with the existing NUTS codes. From 1 January 2021, the ONS encourages "ITL" be used as a replacement to the "NUTS" designation, with lookups between NUTS and ITL maintained and published until 2023.[1][2]

The current ITL classification is a mirror of the previous NUTS classification with slight modification, the ONS lists 12 regions at ITL 1, 41 regions at ITL 2, and 179 regions at ITL 3.[1] "UK" in the NUTS codes were replaced with "TL".

The last NUTS classification is dated 21 November 2016 and was effective from 1 January 2018, listed 12 regions at NUTS 1, 40 regions at NUTS 2, and 174 regions at NUTS 3 level.

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