Attribute must be 'ISO3166-1:Alpha2'.

Usage
Optional
Fixed value
ISO3166-1:Alpha2
Rules
Identifier/Error message Flag
EUGEN-T10-R027
A country identification code MUST have a list identifier attribute 'ISO3166-1:Alpha2'.
fatal
EHF-T10-B27601
Attribute 'listID' MUST contain value 'ISO3166-1:Alpha2'
fatal