<xsd:simpleType name="DateAccuracyIndicatorCodeSimpleType">
    <xsd:annotation>
        <xsd:documentation>A data type for a subjective assessment that indicates belief that date content is exact or accurate. </xsd:documentation>
        <xsd:appinfo>
            <i:Base i:namespace="http://niem.gov/niem/structures/2.0" i:name="Object" xmlns:i="http://niem.gov/niem/appinfo/2.0" />
        </xsd:appinfo>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
        <xsd:enumeration value="Circa">
            <xsd:annotation>
                <xsd:documentation>Accuracy of the actual date is at, in, or of approximately about the specified date</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="Exact">
            <xsd:annotation>
                <xsd:documentation>The specified date exhibits or is marked by strict, particular, and complete accordance with fact or a standard.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="Unknown">
            <xsd:annotation>
                <xsd:documentation>The accuracy of the specified date is not known.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
    </xsd:restriction>
</xsd:simpleType>

• DateAccuracyIndicatorCodeSimpleType
• twpdes:DateAccuracyIndicatorCodeType
• nc:DateAccuracyCode