 
| Class | Class Name | 
|---|---|
| 31 | trees for landscaping and controlling the erosion, all being organically grown or prepared from natural plant products | 
| 31 | truffles, fresh | 
| 31 | trunks of trees | 
| 31 | tuna, live | 
| 31 | turf, natural | 
| 31 | undressed timber | 
| 31 | unprocessed and raw beans | 
| 31 | unprocessed cereal seeds | 
| 31 | unprocessed cereals | 
| 31 | unprocessed fruits | 
| 31 | unprocessed grains | 
| 31 | unprocessed nuts | 
| 31 | unprocessed plants | 
| 31 | unprocessed rice | 
| 31 | unprocessed sweet corn ears [husked or unhusked] | 
| 31 | unsawn timber | 
| 31 | vegetable marrows, fresh | 
| 31 | vegetables, fresh | 
| 31 | vine plant | 
| 31 | vine plants | 
| 31 | wheat | 
| 31 | wheat germ for animal consumption | 
| 31 | wood chips for the manufacture of wood pulp | 
| 31 | wreaths of natural flowers | 
| 31 | yeast and yeast extracts for animals | 
| 31 | yeast for animal consumption |