diff --git a/isis/src/base/objs/ProcessExportPds4/ProcessExportPds4.cpp b/isis/src/base/objs/ProcessExportPds4/ProcessExportPds4.cpp
index f6830d10cf..ab4637f7a9 100644
--- a/isis/src/base/objs/ProcessExportPds4/ProcessExportPds4.cpp
+++ b/isis/src/base/objs/ProcessExportPds4/ProcessExportPds4.cpp
@@ -235,7 +235,6 @@ namespace Isis {
             QString timeValue = stopTime.text();
             PvlToXmlTranslationManager::resetElementValue(stopTime, timeValue + "Z");
           }
-      
         }
       
         QDomElement obsSysNode = obsAreaNode.firstChildElement("Observing_System");
@@ -277,14 +276,12 @@ namespace Isis {
       // move target to just below Observing_System. 
       QDomElement targetIdNode = obsAreaNode.firstChildElement("Target_Identification");
       obsAreaNode.insertAfter(targetIdNode, obsAreaNode.firstChildElement("Observing_System"));
-
     }
     else if (inputLabel->findObject("IsisCube").hasGroup("Mapping")) {
 
       translationFileName = "$base/translations/pds4ExportTargetFromMapping.trn"; 
       PvlToXmlTranslationManager targXlator(*inputLabel, translationFileName.expanded());
       targXlator.Auto(*m_domDoc);
-
     }
     else {
       throw IException(IException::Unknown, "Unable to find a target in input cube.", _FILEINFO_);
@@ -292,11 +289,72 @@ namespace Isis {
   }
 
 
+ /**
+   * This method reorders the existing m_domDoc to follow PDS4 standards and fixes time formatting
+   * if needed.
+   */
+  void ProcessExportPds4::reorder() {
+      QDomElement obsAreaNode = m_domDoc->documentElement().firstChildElement("Observation_Area");
+      if ( !obsAreaNode.isNull() ) {
+
+        // fix start/stop times, if needed
+        QDomElement timeNode = obsAreaNode.firstChildElement("Time_Coordinates");
+        if (!timeNode.isNull()) {
+          QDomElement startTime = timeNode.firstChildElement("start_date_time");
+          if (startTime.text() == "") {
+            startTime.setAttribute("xsi:nil", "true");
+          }
+          else {
+            QString timeValue = startTime.text();
+            PvlToXmlTranslationManager::resetElementValue(startTime, timeValue + "Z");
+          }
+          QDomElement stopTime  = timeNode.firstChildElement("stop_date_time"); 
+          if (stopTime.text() == "") {
+            stopTime.setAttribute("xsi:nil", "true");
+          }
+          else {
+            QString timeValue = stopTime.text();
+            PvlToXmlTranslationManager::resetElementValue(stopTime, timeValue + "Z");
+          }
+        }
+        QDomElement investigationAreaNode = obsAreaNode.firstChildElement("Investigation_Area");
+        obsAreaNode.insertAfter(investigationAreaNode, obsAreaNode.firstChildElement("Time_Coordinates"));
+
+        QDomElement obsSystemNode = obsAreaNode.firstChildElement("Observing_System");
+        obsAreaNode.insertAfter(obsSystemNode, obsAreaNode.firstChildElement("Investigation_Area"));
+
+        QDomElement targetIdNode = obsAreaNode.firstChildElement("Target_Identification");
+        obsAreaNode.insertAfter(targetIdNode, obsAreaNode.firstChildElement("Observing_System"));
+
+        QDomElement missionAreaNode = obsAreaNode.firstChildElement("Mission_Area");
+        obsAreaNode.insertAfter(missionAreaNode, obsAreaNode.firstChildElement("Target_Identification"));
+
+        QDomElement disciplineAreaNode = obsAreaNode.firstChildElement("Discipline_Area");
+        obsAreaNode.insertAfter(disciplineAreaNode, obsAreaNode.firstChildElement("Mission_Area"));
+      }
+
+      QDomElement identificationAreaNode = m_domDoc->documentElement().firstChildElement("Identification_Area");
+      if ( !identificationAreaNode.isNull() ) {
+        QDomElement aliasListNode = identificationAreaNode.firstChildElement("Alias_List");
+        identificationAreaNode.insertAfter(aliasListNode, identificationAreaNode.firstChildElement("product_class"));
+      }
+
+      QDomElement fileAreaObservationalNode = m_domDoc->documentElement().firstChildElement("File_Area_Observational");
+      QDomElement array2DImageNode = fileAreaObservationalNode.firstChildElement("Array_2D_Image");
+      if ( !array2DImageNode.isNull() ) {
+        QDomElement descriptionNode = array2DImageNode.firstChildElement("description");
+        array2DImageNode.insertAfter(descriptionNode, array2DImageNode.firstChildElement("axis_index_order"));
+      }
+  }
+
   /**
    * Allows mission specific programs to set logical_identifier 
    * required for PDS4 labels. This value is added to the xml file 
    * by the identificationArea() method. 
    *  
+   * The input value will be converted to all-lowercase if not already 
+   * in line with PDS4 requirements.  
+   *  
    * The input string should be colon separated string with 6 
    * identifiers: 
    *  
@@ -318,7 +376,7 @@ namespace Isis {
    *            compliant labels.
    */
   void ProcessExportPds4::setLogicalId(QString lid) {
-    m_lid = lid;
+    m_lid = lid.toLower();
   }
 
 
@@ -355,7 +413,7 @@ namespace Isis {
   }
 
 
-  /**
+ /**
    * Allows mission specific programs to use specified 
    * versions of dictionaries. 
    * 
diff --git a/isis/src/base/objs/ProcessExportPds4/ProcessExportPds4.h b/isis/src/base/objs/ProcessExportPds4/ProcessExportPds4.h
index 5631803c23..8d4a64b247 100644
--- a/isis/src/base/objs/ProcessExportPds4/ProcessExportPds4.h
+++ b/isis/src/base/objs/ProcessExportPds4/ProcessExportPds4.h
@@ -118,7 +118,7 @@ namespace Isis {
 
       static void translateUnits(QDomDocument &label,
                                  QString transMapFile = "$base/translations/pds4ExportUnits.pvl");
-
+      void reorder();
       void addSchema(QString sch, QString xsd, QString xmlns, QString xmlnsURI) ;
     protected:
       void identificationArea();
diff --git a/isis/src/tgo/apps/tgocassisrdrgen/main.cpp b/isis/src/tgo/apps/tgocassisrdrgen/main.cpp
index 0619ae215b..2b56f80c84 100644
--- a/isis/src/tgo/apps/tgocassisrdrgen/main.cpp
+++ b/isis/src/tgo/apps/tgocassisrdrgen/main.cpp
@@ -109,6 +109,10 @@ void IsisMain() {
                     "xmlns",
                     "http://psa.esa.int/psa/em16/cas/v1");*/
 
+  process.addSchema("CASSIS_1010.sch", 
+                    "CASSIS_1010.xsd",
+                    "xmlns:cassis",
+                    "local");
   // Add geometry schema for mosaics
   if (label->findObject("IsisCube").hasGroup("Mosaic")) {
     process.addSchema("PDS4_GEOM_1B00_1610.sch", 
@@ -117,7 +121,6 @@ void IsisMain() {
                       "https://pds.jpl.nasa.gov/datastandards/schema/released/geom/v1");
   }
 
-
  /*
   * Add additional pds label data here
   */
@@ -135,6 +138,7 @@ void IsisMain() {
   cubeLab.Auto(pdsLabel);
 
   ProcessExportPds4::translateUnits(pdsLabel);
+  process.reorder(); 
 
   QString outFile = ui.GetFileName("TO");