diff --git a/METdbLoad/ush/load_specification_schema.xsd b/METdbLoad/ush/load_specification_schema.xsd
index 009254e..fa8270c 100644
--- a/METdbLoad/ush/load_specification_schema.xsd
+++ b/METdbLoad/ush/load_specification_schema.xsd
@@ -81,6 +81,14 @@
         </xs:restriction>
     </xs:simpleType>
 
+    <xs:simpleType name="linetype">
+        <xs:restriction base="xs:string">
+            <xs:minLength value="2"/>
+            <xs:maxLength value="25"/>
+            <xs:pattern value="[_a-zA-Z0-9]+"/>
+        </xs:restriction>
+    </xs:simpleType>
+
 
     <!-- COMPLEX TYPES -->
     <xs:element name="load_spec">
@@ -136,7 +144,6 @@
                             <xs:element name="field" minOccurs="0" maxOccurs="20">
                                 <xs:complexType>
                                     <xs:sequence>
-
                                         <xs:element name="date_list" minOccurs="0" maxOccurs="5">
                                             <xs:complexType>
                                                 <xs:simpleContent>
@@ -147,11 +154,17 @@
                                             </xs:complexType>
                                         </xs:element>
                                          <xs:element type="xs:string" name="val" minOccurs="0" maxOccurs="100"/>
-
                                     </xs:sequence>
                                     <xs:attribute type="xs:string" name="name"/>
                                 </xs:complexType>
                             </xs:element>
+                            <xs:element name="line_type" minOccurs="0" maxOccurs="1">
+                               <xs:complexType>
+                                  <xs:sequence>
+                                     <xs:element type="xs:string" name="val" maxOccurs="800" minOccurs="0"/>
+                                  </xs:sequence>
+                               </xs:complexType>
+                            </xs:element>
                         </xs:sequence>
                     </xs:complexType>
                 </xs:element>