The following table contains the domain code and description for the QualityClass attribute field values.
| Code | Description |
| * | No Order Yet |
| 1 | Spirit Leveling |
| 2 | GNSS |
| 3 | 3rd Order |
| 4 | 4th Order |
| A | Very Good Accuracy (GNSS Static) |
| B | Good Accuracy (GNSS RTK or Terrestrial) |
| C | Poor Accuracy (Modeled) |
| D | Very Poor Accuracy |
| N | Not Integrated |
| U | Unclassified |