diff --git a/modules/axelor-open-suite/axelor-crm/src/main/resources/domains/Address.xml b/modules/axelor-open-suite/axelor-crm/src/main/resources/domains/Address.xml
new file mode 100644
index 0000000..3a0ed53
--- /dev/null
+++ b/modules/axelor-open-suite/axelor-crm/src/main/resources/domains/Address.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<domain-models xmlns="http://axelor.com/xml/ns/domain-models" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://axelor.com/xml/ns/domain-models http://axelor.com/xml/ns/domain-models/domain-models_5.2.xsd">
+
+    <module name="base" package="com.axelor.apps.base.db" />
+
+    <entity name="Address" lang="java">
+
+        <many-to-one name="state" ref="com.axelor.apps.crm.db.StateAdministration" title="State" />
+
+    </entity>
+
+</domain-models>
\ No newline at end of file
diff --git a/modules/axelor-open-suite/axelor-crm/src/main/resources/domains/StateAdministration.xml b/modules/axelor-open-suite/axelor-crm/src/main/resources/domains/StateAdministration.xml
new file mode 100644
index 0000000..3c8f413
--- /dev/null
+++ b/modules/axelor-open-suite/axelor-crm/src/main/resources/domains/StateAdministration.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<domain-models xmlns="http://axelor.com/xml/ns/domain-models"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://axelor.com/xml/ns/domain-models http://axelor.com/xml/ns/domain-models/domain-models_5.2.xsd">
+
+  <module name="crm" package="com.axelor.apps.crm.db"/>
+
+  <entity name="StateAdministration" lang="java">
+
+    <string name="name" title="Name" required="true"/>
+    <string name="typeSelect" title="Type" selection="state.administration.type.select" required="true"/>
+
+    <many-to-one name="parent" ref="com.axelor.apps.crm.db.StateAdministration"/>
+	
+    <string name="fullName" namecolumn="true" title="Full name">
+    <![CDATA[
+
+    String fullName = "";
+
+    com.axelor.apps.crm.db.StateAdministration current = this;
+
+    while (current != null && current.getName() != null) {
+
+      if (fullName.isEmpty()) {
+        fullName = current.getName();
+      } else {
+        fullName = current.getName() + " - " + fullName;
+      }
+
+      current = current.getParent();
+    }
+
+    return fullName;
+
+    ]]>
+    </string>
+	
+  </entity>
+
+</domain-models>
diff --git a/modules/axelor-open-suite/axelor-crm/src/main/resources/views/Selects.xml b/modules/axelor-open-suite/axelor-crm/src/main/resources/views/Selects.xml
index 12b1d52..40fda55 100644
--- a/modules/axelor-open-suite/axelor-crm/src/main/resources/views/Selects.xml
+++ b/modules/axelor-open-suite/axelor-crm/src/main/resources/views/Selects.xml
@@ -143,4 +143,11 @@
 		<option value="1">Some user groups</option>
 	</selection>
 
+	<selection name="state.administration.type.select">
+		<option value="0">Region</option>
+		<option value="1">Sub Region</option>
+		<option value="2">Wilaya</option>
+		<option value="3">Commune</option>
+	</selection>
+
 </object-views>
\ No newline at end of file