Search for a GRID

What is a GRID?

The Global Registration Identifier for Donors (GRID) is a 19-character identifier composed of three elements:

1. A 4-digit Issuing Organization Number (ION) – NMDP ION is 3553
2. A 13-character Registration Donor Identifier (RDI) assigned by the issuing organization
3. A 2-digit checksum – a calculated number that ensures the preceding 17 digits are accurate and not mistyped
   

GRID breakdown:

Searching via GRID

On all pages within the Donor tab, the default search method is via GRID Search via the 19-character GRID for each donor in the “Enter ID” section
Example of a successful search

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