At the outset of the standard a single vocabulary codelist was built that contained codes for a range of external organisations and/or taxonomies that were used for a number of different attributes.

This became increasingly confusing and so separate vocabulary codelists are proposed for each specific use case. Namely:

• Sector Vocabulary (iati-activity/sector/@vocabulary)
• Policy Marker Vocabulary (iati-activity/policy-marker/@vocabulary)

and (already existing)

• Region Vocabulary (iati-activity/recipient-region/@vocabulary)
• Geographic Vocabulary (iati-activity/location/location-id/@vocabulary)
• Budget Identifier Vocabulary (iati-activity/country-budget-items/@vocabulary)

For technical details about implementing this proposal go to: https://github.com/IATI/IATI-Codelists/issues/43