| - SOA CATEGORY - | - SECTOR - | - SOA CLASSIFICATION - |
| OG1 | Civil and industrial buildings | classification V (until to € 5.165.000) |
| OG3 | Roads, highways, bridges, viaducts, railways, subways | classification VI (until to € 10.329.000) |
| OG6 | Aqueducts, gas pipelines, oil pipelines, irrigation and evacuation works | classification VIII (unlimited) |
| OG9 | Plants for the production of electricity | classification IV-bis (until to € 3.500.000) |
| OG11 | Technological systems | classification V (until to € 5.165.000) |
| OS3 | Water-sanitary systems, kitchens, laundries | classification III (until to € 1.033.000) |
| OS28 | Thermal and conditioning systems | classification V (until to € 5.165.000) |
| OS30 | Internal electrical, telephone, radiotelephone and television systems | classification III-bis (until to € 1.500.000) |
