| Field code | CB_BIRTH_DATE | 
| Field description | CBU Date of birth (date the infant was born) | 
| Field type | Date Length: 8 | 
| Field rule | Date format: YYYYMMDD | 
| Dictionary field | Date of birth (Birth date) | 
| EMDIS messages | CBU_DIFF CBU_FULL | 
| WMDA XML fields related to dictionary field | BIRTH_DATE |