  <gmd:MD_MaintenanceInformation xmlns:gmd="http://www.isotc211.org/2005/gmd" uuid="b26ac9c3-fb05-410e-915f-8d182a8c8ab9">
    <gmd:maintenanceAndUpdateFrequency>
      <gmd:MD_MaintenanceFrequencyCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded" codeSpace="009"/>
    </gmd:maintenanceAndUpdateFrequency>
    <gmd:maintenanceNote>
      <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
        metadata is updated as needed
      </gco:CharacterString>
    </gmd:maintenanceNote>
  </gmd:MD_MaintenanceInformation>