-   Flag to determine if the transaction file is either a test or production file.
-   TEST files will be validated by the DHPO, but will not be stored or shared with the receiver.
-   PRODUCTION files will be validated, stored at the DHPO and shared with the receiver.

<xs:simpleType name="HeaderDispositionFlag">
    <xs:annotation>
        <xs:documentation>
        -   Flag to determine if the transaction file is either a test or production file.
        -   TEST files will be validated by the DHPO, but will not be stored or shared with the receiver.
        -   PRODUCTION files will be validated, stored at the DHPO and shared with the receiver.
      </xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:string">
        <xs:enumeration value="TEST" />
        <xs:enumeration value="PRODUCTION" />
    </xs:restriction>
</xs:simpleType>