| Level 3 Code | Level 3 Description | Action |
|---|---|---|
| 12111300 | Professional and Scientific | Expand sub-codes |
| 12111302 | Administrative and Managerial | Expand sub-codes |
| 12111303 | Clerical and Related | Expand sub-codes |
| 12111305 | Service Workers | Expand sub-codes |
| 12111307 | Mining Metal Manufacture and Textiles | Expand sub-codes |
| 12111308 | Production Wood and Metalworkers | Expand sub-codes |
| 12111309 | Production Construction and Transport | Expand sub-codes |
| 12111310 | Lacking Occupation Code | Expand sub-codes |