Subject: For review: Revised Version *Element* Rules
Schema Rules: Every UBL schema module MUST capture its version number in the xsd:version attribute of the xsd:schema element. Every UBL document schema MUST include a required element named "UBLVersion" as the first child of it's root element. This element MUST have a default value that matches the value of the xsd:version attribute of its containing schema. Instance Rule: The value of the 'UBLVersion' element MUST match the value of the xsd:version attribute of the UBL Document schema it instantiates.