diff --git a/app/plugins/CoreAssigner/resources/locales/en_US/core_assigner.po b/app/plugins/CoreAssigner/resources/locales/en_US/core_assigner.po
index 68dbb5f33..7a3608bb4 100644
--- a/app/plugins/CoreAssigner/resources/locales/en_US/core_assigner.po
+++ b/app/plugins/CoreAssigner/resources/locales/en_US/core_assigner.po
@@ -76,6 +76,9 @@ msgstr "Minimum Collision Value"
 msgid "field.FormatAssigners.minimum.desc"
 msgstr "The minimum value for randomly generated collision numbers, or the starting value for sequences"
 
+msgid "field.FormatAssigners.minimum_length"
+msgstr "Minimum Length"
+
 msgid "field.FormatAssigners.permitted_characters"
 msgstr "Permitted Characters"
 
diff --git a/app/plugins/CoreAssigner/src/Model/Table/FormatAssignersTable.php b/app/plugins/CoreAssigner/src/Model/Table/FormatAssignersTable.php
index d41ba294a..08b2f7dbc 100644
--- a/app/plugins/CoreAssigner/src/Model/Table/FormatAssignersTable.php
+++ b/app/plugins/CoreAssigner/src/Model/Table/FormatAssignersTable.php
@@ -152,7 +152,11 @@ public function assign($ia, $entity): string {
       
       if(!in_array($candidate, $tested)
           // Also check that we didn't get an empty string
-          && trim($candidate) != false) {
+          && trim($candidate) != false
+          // Or that the candidate is too short
+          && (empty($ia->format_assigner->minimum_length)
+              || ($ia->format_assigner->minimum_length > 0
+                  && strlen($candidate) >= $ia->format_assigner->minimum_length))) {
         // We have a new candidate (ie: one that wasn't generated on a previous loop),
         // so let's see if it is already in use.
         
@@ -398,13 +402,17 @@ protected function substituteParameters(
             
             switch($format[$i]) {
               case 'f':
-                $base .= sprintf("%.".$width."s",
-                                 preg_replace($charregex, '', strtolower($entity->primary_name->family)));
-                break;
+                if(!empty($entity->primary_name->family)) {
+                  $base .= sprintf("%.".$width."s",
+                                  preg_replace($charregex, '', strtolower($entity->primary_name->family)));
+                  break;
+                }
               case 'F':
-                $base .= sprintf("%.".$width."s",
-                                 preg_replace($charregex, '', $entity->primary_name->family));
-                break;
+                if(!empty($entity->primary_name->family)) {
+                  $base .= sprintf("%.".$width."s",
+                                  preg_replace($charregex, '', $entity->primary_name->family));
+                  break;
+                }
               case 'g':
                 $base .= sprintf("%.".$width."s",
                                  preg_replace($charregex, '', strtolower($entity->primary_name->given)));
@@ -465,12 +473,16 @@ protected function substituteParameters(
                 }
                 break;
               case 'm':
-                $base .= sprintf("%.".$width."s",
-                                 preg_replace($charregex, '', strtolower( $entity->primary_name->middle)));
+                if(!empty($entity->primary_name->middle)) {
+                  $base .= sprintf("%.".$width."s",
+                                   preg_replace($charregex, '', strtolower($entity->primary_name->middle)));
+                }
                 break;
               case 'M':
-                $base .= sprintf("%.".$width."s",
-                                 preg_replace($charregex, '',  $entity->primary_name->middle));
+                if(!empty($entity->primary_name->middle)) {
+                  $base .= sprintf("%.".$width."s",
+                                  preg_replace($charregex, '',  $entity->primary_name->middle));
+                }
                 break;
               case 'n':
                 $base .= sprintf("%.".$width."s",
@@ -524,6 +536,11 @@ public function validationDefault(Validator $validator): Validator {
 
     $this->registerStringValidation($validator, $schema, 'format', true);
 
+    $validator->add('minimum_length', [
+      'content' => ['rule' => 'isInteger']
+    ]);
+    $validator->allowEmptyString('minimum_length');
+
     $validator->add('minimum', [
       'content' => ['rule' => 'isInteger']
     ]);
diff --git a/app/plugins/CoreAssigner/src/config/plugin.json b/app/plugins/CoreAssigner/src/config/plugin.json
index 0ea282c32..882dbad71 100644
--- a/app/plugins/CoreAssigner/src/config/plugin.json
+++ b/app/plugins/CoreAssigner/src/config/plugin.json
@@ -12,6 +12,7 @@
           "id": {},
           "identifier_assignment_id": {},
           "format": { "type": "string", "size": 256 },
+          "minimum_length": { "type": "integer" },
           "minimum": { "type": "integer" },
           "maximum": { "type": "integer" },
           "collision_mode": { "type": "string", "size": 2 },
diff --git a/app/plugins/CoreAssigner/templates/FormatAssigners/fields.inc b/app/plugins/CoreAssigner/templates/FormatAssigners/fields.inc
index d9df04f8a..0e824547c 100644
--- a/app/plugins/CoreAssigner/templates/FormatAssigners/fields.inc
+++ b/app/plugins/CoreAssigner/templates/FormatAssigners/fields.inc
@@ -64,6 +64,7 @@ if($vv_action == 'edit') {
 
   foreach([
             'permitted_characters',
+            'minimum_length',
             'minimum',
             'maximum',
           ] as $field) {
diff --git a/app/plugins/CoreServer/src/Model/Table/HttpServersTable.php b/app/plugins/CoreServer/src/Model/Table/HttpServersTable.php
index c92c92d04..06802e7d1 100644
--- a/app/plugins/CoreServer/src/Model/Table/HttpServersTable.php
+++ b/app/plugins/CoreServer/src/Model/Table/HttpServersTable.php
@@ -21,7 +21,7 @@
  *
  * @link          https://www.internet2.edu/comanage COmanage Project
  * @package       registry-plugins
- * @since         COmanage Registry v5.2.0
+ * @since         COmanage Registry v5.1.0
  * @license       Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0)
  */
 
@@ -49,7 +49,7 @@ class HttpServersTable extends Table {
   /**
    * Perform Cake Model initialization.
    *
-   * @since  COmanage Registry v5.2.0
+   * @since  COmanage Registry v5.1.0
    * @param  array  $config Configuration options passed to constructor
    */
 
@@ -96,7 +96,7 @@ public function initialize(array $config): void {
   /**
    * Create an HTTP Client from the HttpServer configuration.
    * 
-   * @since  COmanage Registry v5.2.0
+   * @since  COmanage Registry v5.1.0
    * @param  int  $id   HttpServer ID
    * @return Client     Cake Http Client
    */
@@ -131,7 +131,7 @@ public function createHttpClient(int $id): Client {
   /**
    * Set validation rules.
    *
-   * @since  COmanage Registry v5.2.0
+   * @since  COmanage Registry v5.1.0
    * @param  Validator $validator Validator
    * @return Validator            Validator
    */
diff --git a/app/plugins/CoreServer/src/Model/Table/MatchServersTable.php b/app/plugins/CoreServer/src/Model/Table/MatchServersTable.php
index 833cca9e7..6b095d270 100644
--- a/app/plugins/CoreServer/src/Model/Table/MatchServersTable.php
+++ b/app/plugins/CoreServer/src/Model/Table/MatchServersTable.php
@@ -21,7 +21,7 @@
  *
  * @link          https://www.internet2.edu/comanage COmanage Project
  * @package       registry-plugins
- * @since         COmanage Registry v5.2.0
+ * @since         COmanage Registry v5.1.0
  * @license       Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0)
  */
 
@@ -40,7 +40,7 @@ class MatchServersTable extends HttpServersTable {
   /**
    * Perform Cake Model initialization.
    *
-   * @since  COmanage Registry v5.2.0
+   * @since  COmanage Registry v5.1.0
    * @param  array  $config Configuration options passed to constructor
    */
 
@@ -80,7 +80,7 @@ public function initialize(array $config): void {
   /**
    * Set validation rules.
    *
-   * @since  COmanage Registry v5.2.0
+   * @since  COmanage Registry v5.1.0
    * @param  Validator $validator Validator
    * @return Validator            Validator
    */
diff --git a/app/plugins/CoreServer/src/Model/Table/SqlServersTable.php b/app/plugins/CoreServer/src/Model/Table/SqlServersTable.php
index 546717899..8030d5d4c 100644
--- a/app/plugins/CoreServer/src/Model/Table/SqlServersTable.php
+++ b/app/plugins/CoreServer/src/Model/Table/SqlServersTable.php
@@ -35,8 +35,6 @@
 use Cake\ORM\RulesChecker;
 use Cake\ORM\Table;
 use Cake\Validation\Validator;
-
-// Even though CoreServer is a plugin, it should always be enabled
 use CoreServer\Lib\Enum\RdbmsTypeEnum;
 
 class SqlServersTable extends Table {
diff --git a/app/src/Lib/Enum/RequiredEnum.php b/app/src/Lib/Enum/RequiredEnum.php
new file mode 100644
index 000000000..784d027fd
--- /dev/null
+++ b/app/src/Lib/Enum/RequiredEnum.php
@@ -0,0 +1,36 @@
+<?php
+/**
+ * COmanage Registry Boolean Enum, Set Variant
+ *
+ * Portions licensed to the University Corporation for Advanced Internet
+ * Development, Inc. ("UCAID") under one or more contributor license agreements.
+ * See the NOTICE file distributed with this work for additional information
+ * regarding copyright ownership.
+ *
+ * UCAID licenses this file to you under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * @link          https://www.internet2.edu/comanage COmanage Project
+ * @package       registry
+ * @since         COmanage Registry v5.1.0
+ * @license       Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0)
+ */
+
+declare(strict_types = 1);
+
+namespace App\Lib\Enum;
+
+class RequiredEnum extends StandardEnum {
+  const Required      = "R";
+  const Optional      = "O";
+  const NotPermitted  = "NP";
+}
\ No newline at end of file