| Category | Category ID | Change |
|---|
| - | Stamps | 260 | |
| | - | Accessories, Publications | 704 | |
| | | | Memorabilia | 4750 | |
| | | | Postal History | 3514 | |
| | | | Publications | 701 | |
| | | | Supplies | 170527 | |
| | | | Other Accessories | 16176 | Combined into [Other-705] |
| | | | Other | 705 | New Category |
| | - | Australian Stamps | 3468 | |
| | | - | By State, Territory | 153379 | |
| | | | | Antarctica | 153380 | |
| | | | | Christmas Island | 153381 | |
| | | | | Cocos Island | 153382 | |
| | | | | New South Wales | 111852 | |
| | | | | Norfolk Island | 111870 | |
| | | | | Queensland | 111854 | |
| | | | | South Australia | 111855 | |
| | | | | Tasmania | 111857 | |
| | | | | Victoria | 111853 | |
| | | | | Western Australia | 111856 | |
| | | | | Other States, Territories | 170523 | Combined into [Other-3469] |
| | | | | Other | 3469 | New Category |
| | | - | By Type | 153383 | |
| | | | | Booklets | 3470 | |
| | | | | Collections, Mixture | 111858 | Combined into [Collections, Mixture-3471] |
| | | | - | Collections, Mixture | 3471 | New Category |
| | | | | | Pre-1980 | 111859 | Moved from [Collections, Mixture-111858] Combined into [Collections, Mixture-3471] |
| | | | | | 1980 - Now | 170525 | Moved from [Collections, Mixture-111858] Combined into [Collections, Mixture-3471] |
| | | | | Covers | 45595 | Combined into [Covers-3472] |
| | | | - | Covers | 3472 | New Category |
| | | | | | Australian Pre-Decimal | 45596 | Moved from [Covers-45595] |
| | | | | | Australian Decimal | 45597 | Moved from [Covers-45595] |
| | | | | | Mixed | 170524 | Moved from [Covers-45595] |
| | | | + | Decimal | 111860 | |
| | | | | Dependencies | 6072 | |
| | | | | Errors, Freaks, Oddities | 686 | |
| | | | | First Day Covers | 45598 | Combined into [First Day Covers-3473] |
| | | | - | First Day Covers | 3473 | New Category |
| | | | | | Australian Pre-Decimal | 45599 | Moved from [First Day Covers-45598] |
| | | | | | Australian Decimal | 45600 | Moved from [First Day Covers-45598] |
| | | | | | Christmas | 111864 | Moved from [First Day Covers-45598] |
| | | | | | Olympics | 111865 | Moved from [First Day Covers-45598] |
| | | | | | Mixed | 170526 | Moved from [First Day Covers-45598] |
| | | | | Flight Covers | 3474 | |
| | | | | KGV Heads | 6073 | |
| | | | | Plate Block, Multiples | 3475 | |
| | | | + | Pre-Decimal | 111866 | |
| | | | | Sheets | 3476 | |
| | | | + | Topics | 153384 | |
| | | | Other Australian Stamps | 3467 | |
| | - | World Stamps | 352 | |
| | | - | By Region, Country | 153396 | |
| | | | | Africa | 150920 | Combined into [Africa-162071] |
| | | | - | Africa | 162071 | New Category |
| | | | | | Egypt | 150921 | Moved from [Africa-150920] Combined into [Egypt-123792] |
| | | | | | Egypt | 123792 | New Category |
| | | | | | Rhodesia, Zimbabwe | 73221 | Moved from [Africa-150920] |
| | | | | | South Africa | 150922 | Moved from [Africa-150920] Combined into [South Africa-166781] |
| | | | | | South Africa | 166781 | New Category |
| | | | | | Other African | 170528 | Moved from [Africa-150920] Combined into [Other African-692] |
| | | | | | Other African | 692 | New Category |
| | | | + | Asia | 47174 | |
| | | | | British Commonwealth | 65174 | |
| | | | + | Europe | 4742 | |
| | | | + | Central, South America | 4747 | |
| | | | | Middle East | 123790 | |
| | | | + | North America | 153397 | |
| | | | - | Pacific | 150923 | |
| | | | | | Fiji | 111868 | Combined into [Fiji-65179] |
| | | | | | Fiji | 65179 | New Category |
| | | | | | New Zealand | 111869 | Combined into [New Zealand-70089] |
| | | | | | New Zealand | 70089 | New Category |
| | | | | | Papua New Guinea | 111871 | Combined into [Papua New Guinea-73219] |
| | | | | | Papua New Guinea | 73219 | New Category |
| | | | | | Samoa | 111872 | Combined into [Samoa-73226] |
| | | | | | Samoa | 73226 | New Category |
| | | | | | Solomon Islands | 73231 | |
| | | | | | Tonga | 73236 | |
| | | | | | Other Pacific | 150924 | |
| | | + | By Type | 153398 | |
| | | | Other World Stamps | 264 | |