ISO 3166-2:TD is the entry for Chad in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.
Currently for Chad, ISO 3166-2 codes are defined for 23 provinces (mintaqah [1] ).
Each code consists of two parts, separated by a hyphen. The first part is TD, the ISO 3166-1 alpha-2 code of Chad. The second part is two letters.
Subdivision names are listed as in the ISO 3166-2 standard published by the ISO 3166 Maintenance Agency (ISO 3166/MA).
ISO 639-1 codes are used to represent subdivision names in the following administrative languages:
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| Code | Subdivision name (ar) (BGN/PCGN 1956) | Subdivision name (fr) | Subdivision name (en) [note 1] |
|---|---|---|---|
| TD-BG | Baḩr al Ghazāl | Bahr el Ghazal (local variant: Barh-el-Ghazal) | Bahr El Gazal |
| TD-BA | Al Baţḩā’ | Batha | Batha |
| TD-BO | Būrkū | Borkou | Borkou |
| TD-CB | Shārī Bāqirmī | Chari-Baguirmi | Chari-Baguirmi |
| TD-EE | Inīdī ash Sharqī | Ennedi-Est | East Ennedi |
| TD-EO | Inīdī al Gharbī | Ennedi-Ouest | West Ennedi |
| TD-GR | Qīrā | Guéra | Guera |
| TD-HL | Ḩajjar Lamīs | Hadjer Lamis | Hadjer Lamis |
| TD-KA | Kānim | Kanem | Kanem |
| TD-LC | Al Buḩayrah | Lac | Lake |
| TD-LO | Lūghūn al Gharbī | Logone-Occidental | Western Logone |
| TD-LR | Lūghūn ash Sharqī | Logone-Oriental | Eastern Logone |
| TD-MA | Māndūl | Mandoul | Mandoul |
| TD-ME | Māyū Kībbī ash Sharqī | Mayo-Kebbi-Est | East Mayo-Kebbi |
| TD-MO | Māyū Kībbī al Gharbī | Mayo-Kebbi-Ouest | West Mayo-Kebbi |
| TD-MC | Shārī al Awsaţ | Moyen-Chari | Middle Chari |
| TD-OD | Waddāy | Ouaddaï | Wadai |
| TD-SA | Salāmāt | Salamat | Salamat |
| TD-SI | Sīlā | Sila | Sila |
| TD-TA | Tānjīlī | Tandjilé | Tandjile |
| TD-TI | Tibastī | Tibesti | Tibesti |
| TD-ND | Madīnat Injamīnā | Ville de Ndjamena | N'Djamena City |
| TD-WF | Wādī Fīrā’ | Wadi Fira | Wadi Fira |
The following changes to the entry have been announced by the ISO 3166/MA since the first publication of ISO 3166-2 in 1998. ISO stopped issuing newsletters in 2013.
| Newsletter | Date issued | Description of change in newsletter | Code/Subdivision change |
|---|---|---|---|
| Newsletter I-8 | 2007-04-17 | Modification of the administrative structure | Subdivision layout: 14 prefectures (see below) → 18 regions |
| Newsletter II-2 | 2010-06-30 | Update of the administrative structure and languages and update of the list source | Subdivisions added: TD-BG Bahr el Gazel TD-BO Borkou TD-EN Ennedi TD-SI Sila TD-TI Tibesti Subdivisions deleted: TD-BET Borkou-Ennedi-Tibesti |
| Online Browsing Platform (OBP) | 2014-11-03 | Add two regions TD-EE and TD-EO; correct spelling of TD-BA; delete TD-EN; update List Source | Subdivisions added: TD-EE Ennedi-Est (fr) TD-EO Ennedi-Ouest (fr) Subdivision deleted: TD-EN Innīdī (ar), Ennedi (fr) Spelling change: TD-BA Al Baṭḩah (ar) → Al Baţḩah |
| 2020-11-24 | Change of subdivision category region to province; Modification of spelling for TD-BA, TD-LO, TD-LR, TD-TA, TD-WF in ara; Addition of local variation for TD-BG in fra; Addition of subdivision name of TD-EE, TD-OE in ara; Update List Source | Spelling changes: TD-BA Al Baţḩah (ar) → Al Baţḩā’ TD-LO Lūqūn al Gharbī (ar) → Lūghūn al Gharbī TD-LR Lūqūn ash Sharqī (ar) → Lūghūn ash Sharqī TD-TA Tānjilī (ar) → Tānjīlī TD-WF Wādī Fīrā (ar) → Wādī Fīrā’ |
Note: Many of the former prefectures share the same code and name with the current regions.
| Former code | Subdivision name |
|---|---|
| TD-BA | Batha |
| TD-BI | Biltine |
| TD-BET | Borkou-Ennedi-Tibesti |
| TD-CB | Chari-Baguirmi |
| TD-GR | Guéra |
| TD-KA | Kanem |
| TD-LC | Lac |
| TD-LO | Logone-Occidental |
| TD-LR | Logone-Oriental |
| TD-MK | Mayo-Kébbi |
| TD-MC | Moyen-Chari |
| TD-OD | Ouaddaï |
| TD-SA | Salamat |
| TD-TA | Tandjilé |
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