Country
Standard: ISO 3166
Description: Countries are identified using the ISO 3166 standard, which provides codes for the names of countries, dependent territories, and special areas of geographical interest. The database uses the ISO standard names for countries, and uses the iso3166a2 code as the short identifier.
Currency
Standard: ISO 4217
Description: Currencies are classified according to the ISO 4217 standard, which assigns three-letter codes to each currency.
Product
Standard: Central Product Classification (CPC) Version 2.1
Description: Products are categorized using the CPC Version 2.1, facilitating uniform classification of goods and services.
The leaf node of the main CPC hierarchy is used where that is appropriately specific. Where the main CPC hierarchy is not sufficiently specific then a leaf node from the FEWS NET Data Warehouse (FDW) is used instead, if one exists. These nodes contain a 2-letter suffix to the main CPC code, typically starting with A, e.g. P21393AA: Cassava Chips. If FDW does not contain a suitable product, then a new leaf node with a suffix beginning with H is created in the HEA database, e.g. R01219HA: Other leafy or stem vegetables, dark green.