OCD IDs are unique identifiers, established by Open Civic Data.
They are great for unqiuely
OCD identifiers (Open Civic Data Division IDs) are a handy way to identify unique political districts, regardless of its type or country of origin.
For example, an OCD ID might look like this: ocd-division/country:us/state:va/cd:8
When you use Geocodio to process addresses, OCD IDs are included with most political district appends.
Many civic tech tools and government APIs use these same identifiers. Making it a breeze to match up with data from other sources.