| 38.1 | WASTE COLLECTION |
| Class | The name of the class |
| 38.11 | Collection of non-hazardous waste |
| 38.12 | Collection of hazardous waste |
| 38.2 | WASTE TREATMENT AND DISPOSAL |
| Class | The name of the class |
| 38.21 | Treatment and disposal of non-hazardous waste |
| 38.22 | Treatment and disposal of hazardous waste |
| 38.3 | MATERIALS RECOVERY |
| Class | The name of the class |
| 38.31 | Dismantling of wrecks |
| 38.32 | Recovery of sorted materials |