| ENG | England | CHI | Channel Islands |
| IRL | Ireland | IOM | Isle of Man |
| SCT | Scotland | WAL | Wales |
| NIR | Northern Ireland |
| ALD | Alderney | GSY | Guernsey |
| JSY | Jersey | SRK | Sark |
| AVN | Avon | BDF | Bedfordshire |
| BRK | Berkshire | BKM | Buckinghamshire |
| CAM | Cambridgeshire | CHS | Cheshire |
| CLV | Cleveland | DUR | Co. Durham |
| CON | Cornwall | CUL | Cumberland |
| CMA | Cumbria | DBY | Derbyshire |
| DEV | Devon | DOR | Dorset |
| ERY | East Riding of Yorkshire | SXE | East Sussex |
| ESS | Essex | GLS | Gloucestershire |
| GTM | Greater Manchester | HAM | Hampshire |
| HWR | Hereford and Worcester | HEF | Herefordshire |
| HRT | Hertfordshire | HUM | Humberside |
| HUN | Huntingdonshire | IOW | Isle of Wight |
| KEN | Kent | LAN | Lancashire |
| LEI | Leicestershire | LIN | Lincolnshire |
| LND | London | MSY | Merseyside |
| MDX | Middlesex | NFK | Norfolk |
| NRY | North Riding of Yorkshire | NYK | North Yorkshire |
| NTH | Northamptonshire | NBL | Northumberland |
| NTT | Nottinghamshire | OXF | Oxfordshire |
| RUT | Rutland | SAL | Shropshire |
| SOM | Somerset | SYK | South Yorkshire |
| STS | Staffordshire | SFK | Suffolk |
| SRY | Surrey | SSX | Sussex |
| TWR | Tyne and Wear | WAR | Warwickshire |
| WMD | West Midlands | WRY | West Riding of Yorkshire |
| SXW | West Sussex | WYK | West Yorkshire |
| WES | Westmorland | WIL | Wiltshire |
| WOR | Worcestershire | YKS | Yorkshire |
| CAR | Co. Carlow | CAV | Co. Cavan |
| CLA | Co. Clare | COR | Co. Cork |
| DON | Co. Donegal | DUB | Co. Dublin |
| GAL | Co. Galway | KER | Co. Kerry |
| KID | Co. Kildare | KIK | Co. Kilkenny |
| LEX | Co. Laois | LET | Co. Leitrim |
| LIM | Co. Limerick | LOG | Co. Longford |
| LOU | Co. Louth | MAY | Co. Mayo |
| MEA | Co. Meath | MOG | Co. Monaghan |
| OFF | Co. Offaly | ROS | Co. Roscommon |
| SLI | Co. Sligo | TIP | Co. Tipperary |
| WAT | Co. Waterford | WEM | Co. Westmeath |
| WEX | Co. Wexford | WIC | Co. Wicklow |
| ANT | Co. Antrim | ARM | Co. Armagh |
| DOW | Co. Down | FER | Co. Fermanagh |
| LDY | Co. Londonderry | TYR | Co. Tyrone |
| ABD | Aberdeenshire | ANS | Angus |
| ARL | Argyllshire | AYR | Ayrshire |
| BAN | Banffshire | BEW | Berwickshire |
| BOR | Borders | BUT | Bute |
| CAI | Caithness | CEN | Central |
| CLK | Clackmannanshire | DGY | Dumfries and Galloway |
| DFS | Dumfries-shire | DNB | Dunbartonshire |
| ELN | East Lothian | FIF | Fife |
| GMP | Grampian | HLD | Highland |
| INV | Inverness-shire | KCD | Kincardineshire |
| KRS | Kinross-shire | KKD | Kirkcudbrightshire |
| LKS | Lanarkshire | LTN | Lothian |
| MLN | Midlothian | MOR | Morayshire |
| NAI | Nairn | OKI | Orkney |
| PEE | Peebles-shire | PER | Perth |
| RFW | Renfrewshire | ROC | Ross and Cromarty |
| ROX | Roxburghshire | SEL | Selkirkshire |
| SHI | Shetland | STI | Stirlingshire |
| STD | Strathclyde | SUT | Sutherland |
| TAY | Tayside | WLN | West Lothian |
| WIS | Western Isles | WIG | Wigtownshire |
| AGY | Anglesey | BRE | Breconshire |
| CAE | Caernarvonshire | CGN | Cardiganshire |
| CMN | Carmarthenshire | CWD | Clwyd |
| DEN | Denbighshire | DFD | Dyfed |
| FLN | Flintshire | GLA | Glamorgan |
| GNT | Gwent | GWN | Gwynedd |
| MER | Merionethshire | MGM | Mid Glamorgan |
| MON | Monmouthshire | MGY | Montgomeryshire |
| PEM | Pembrokeshire | POW | Powys |
| RAD | Radnorshire | SGM | South Glamorgan |
| WGM | West Glamorgan |