An identification of the specification containing the total set of rules regarding semantic content, cardinalities and business rules to which the data contained in the instance document conforms.

Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Data type
Identifier
Fixed value
urn:fdc:peppol.eu:prac:trns:t004:1.1
Rules
Identifier/Error message Flag
BII3-T83-R001
[BII3-T83-R001]-A Call for Tenders shall have a specification identifier
fatal
PEPPOL-T004-R002
[PEPPOL-T004-R002] CustomizationID value MUST be 'urn:fdc:peppol.eu:prac:trns:t004:1.1'
fatal