The following table contains the CEOP Data Flag values and definitions in precedence order with the highest precedence at the top.
| | Reported value exceeds output format field size OR was negative precipitation. |
| | Parameter value missing OR Derived parameter can not be computed. |
| | Bad |
| | Interpolated/Estimated/Gap Filled |
| | Questionable/Dubious |
| | Good |
| | Unchecked |