The country where the address is. The country should always be given by using ISO code 3166 alpha 2.

Cardinality
1..1
Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Attributes
Use Name Description
M @listID
Rules
Identifier/Error message Flag
CL-T14-R004
Country codes in an invoice MUST be coded using ISO code list 3166-1
fatal
EHF-T14-B16301
Attribute 'listID' MUST be present.
warning