diff --git a/og_moderation.module b/og_moderation.module
index 95ed032..a2edf55 100644
--- a/og_moderation.module
+++ b/og_moderation.module
@@ -6,17 +6,33 @@
 function og_moderation_og_permission() {
   $perms = array();
   $infos = node_type_get_types();
-  foreach($infos as $info) {
+  $moderated_content_types = implode(', ', revisioning_moderated_content_types(FALSE));
+
+  foreach ($infos as $info) {
     if (og_is_group_content_type('node', $info->type)) {
       $perms["view any unpublished " . $info->type . " content"] = array(
         'title' => t('View any unpublished %type_name content', array('%type_name' => $info->name)),
       );
+      $perms["publish revisions"] = array(
+        'title' => t("Publish content revisions (of anyone's content)"),
+        'description' => t('Applies to content types that are subject to moderation, i.e.: %moderated_content_types.', array('%moderated_content_types' => $moderated_content_types)),
+      );
+      $perms["publish revisions of own " . $info->type . " content"] = array(
+        'title' => t('Publish revisions of own %type_name content', array('%type_name' => $info->name)),
+      );
+      $perms["publish revisions of any " . $info->type . " content"] = array(
+        'title' => t('Publish revisions of any %type_name content', array('%type_name' => $info->name)),
+      );
       $perms["access publishing options of " . $info->type . " content"] = array(
         'title' => t('Access publishing options of %type_name content', array('%type_name' => $info->name)),
       );
       $perms["access revisions options of " . $info->type . " content"] = array(
         'title' => t('Access revisions options of %type_name content', array('%type_name' => $info->name)),
       );
+      $perms["unpublish current revision"] = array(
+        'title' => t("Unpublish current revision (of anyone's content)"),
+        'description' => t('Applies to content types that are subject to moderation, i.e.: %moderated_content_types.', array('%moderated_content_types' => $moderated_content_types)),
+      );
     }
   }
   return $perms;
@@ -113,3 +129,47 @@ function og_moderation_node_revision_access($node, $op = 'view') {
   return _node_revision_access($node, $op = 'view');
 }
 
+/**
+ * Implements hook_revisioning_access_node_revision().
+ *
+ * Apply OG user roles to the revisioning action taken here.
+ */
+function og_moderation_revisioning_access_node_revision($revision_op, $node, $access = NULL, $account = NULL) {
+  $result = ($access == 1) ? NODE_ACCESS_ALLOW : NODE_ACCESS_IGNORE;
+  if (og_is_group_content_type('node', $node->type) && !empty($node->og_group_ref)) {
+    $gid = $node->og_group_ref[LANGUAGE_NONE][0]['target_id'];
+    switch ($revision_op) {
+      case 'publish revisions':
+        if (og_user_access('node', $gid, "publish revisions")) {
+          return NODE_ACCESS_ALLOW;
+        }
+        if (og_user_access('node', $gid, 'publish revisions of any ' . $node->type . ' content')) {
+          return NODE_ACCESS_ALLOW;
+        }
+        if ($account != NULL) {
+          if (($node->uid == $account->uid) && og_user_access('node', $gid, 'publish revisions of own ' . $node->type . ' content', $account)) {
+            return NODE_ACCESS_ALLOW;
+          }
+        }
+        break;
+
+      case 'unpublish current revision':
+        if (og_user_access('node', $gid, "unpublish current revision", NULL, FALSE, FALSE)) {
+          return NODE_ACCESS_ALLOW;
+        }
+        break;
+
+      default:
+        if (og_user_access('node', $gid, 'view any unpublished ' . $node->type . ' content')) {
+          return NODE_ACCESS_ALLOW;
+        }
+        if ($account != NULL) {
+          if (($node->uid == $account->uid) && og_user_access('node', $gid, 'view own unpublished ' . $node->type . ' content', $account)) {
+            return NODE_ACCESS_ALLOW;
+          }
+        }
+    }
+  }
+
+  return $result;
+}