| Field code | DON_POOL |
| Field description | Physical location of the donor |
| Field type | Numeric Length: 4 |
| Field rule | ION, i.e. 6939. See [3] |
| Dictionary field | Donor location identifier (Physical location of the donor. Used to denote which registry a donor belongs to. Use four digit ION code, will be embedded in GRID) |
| EMDIS messages |
ALM_RES CBU_DIFF CBU_FULL DONOR_CB |
| WMDA XML fields related to dictionary field |
POOL |