| Nível | Código | Designação |
|---|---|---|
| 1 | 1 | Artificial areas |
| 2 | 1.1 | Urban fabric |
| 3 | 1.1.1 | Continuous urban fabric |
| 3 | 1.1.2 | Discontinuous urban fabric |
| 2 | 1.2 | Industrial, commercial and transport units |
| 3 | 1.2.1 | Industrial or commercial units |
| 3 | 1.2.2 | Road and rail networks and associated land |
| 3 | 1.2.3 | Port areas |
| 3 | 1.2.4 | Airports |
| 2 | 1.3 | Mine, dump and construction sites |
| 3 | 1.3.1 | Mineral extraction sites |
| 3 | 1.3.2 | Dump sites |
| 3 | 1.3.3 | Construction sites |
| 2 | 1.4 | Artificial non-agricultural vegetated areas |
| 3 | 1.4.1 | Green urban areas |
| 3 | 1.4.2 | Sport and leisure facilities |
| 1 | 2 | Agricultural areas |
| 2 | 2.1 | Arable land |
| 3 | 2.1.1 | Non-irrigated arable land |
| 3 | 2.1.2 | Permanently irrigated land |