Update 36 occurred in Quarter 2 of 2003. The major changes in this update affect the following postcode areas and post towns.
| Postcode area | Post town |
|---|---|
| WS | Burntwood WS7 8 is completely recoded to WS7 1, WS7 2, WS7 3 and WS7 4 |
| WS | Cannock WS11 2 is completely recoded to WS11 4, WS11 5, WS11 6 and WS11 7 WS11 3 is completely recoded to WS11 8, WS11 9, and WS11 0 WS12 5 is completely recoded to WS12 1, WS12 2, WS12 3 and WS12 0 |
| RH | Crawley RH10 0 has been introduced as a new postcode sector for all PO Boxes in RH10 |
