diff --git a/application/config/form_validation.php b/application/config/form_validation.php
index 550e298..c4e6266 100644
--- a/application/config/form_validation.php
+++ b/application/config/form_validation.php
@@ -1,45 +1,118 @@
 <?php defined('BASEPATH') || exit("No direct script access allowed");
 
-$config = array(
-	'users' => array(
-		array(
-				'field' => 'username',
-				'label' => _('Username'),
-				'rules' => 'trim|required|min_length[4]|max_length[20]|unique[users.username]',
-		),
-		array(
-				'field' => 'password',
-				'label' => _('Password'),
-				'rules' => 'required|min_length[6]|matches[password_confirm]',
-		),
-		array(
-				'field' => 'password_confirm',
-				'label' => _('Confirm password'),
-		),
-		array(
-				'field' => 'firstname',
-				'label' => _('First name'),
-				'rules' => 'trim|required|max_length[50]',
-		),
-		array(
-				'field' => 'lastname',
-				'label' => _('Last name'),
-				'rules' => 'trim|required|max_length[50]',
-		),
-		array(
-				'field' => 'email',
-				'label' => _('Email address'),
-				'rules' => 'trim|required|valid_email',
-		),
-		array(
-				'field' => 'institution',
-				'label' => _('Institution'),
-				'rules' => 'trim|max_length[100]',
-		),
-		array(
-				'field' => 'phone',
-				'label' => _('Phone number'),
-				'rules' => 'trim|regex_match[/^\+\d{2,4}\s\d{2,4}\s\d{3,10}+$/i]',
-		)
+/**
+ * Rules for creating users.
+ *
+ * @var array
+ */
+$config['users/create'] = array(
+	array(
+		'field' => 'username',
+		'label' => _('Username'),
+		'rules' => 'required|min_length[4]|max_length[20]|unique[users.username]|trim',
+	),
+	array(
+		'field' => 'email',
+		'label' => _('Email address'),
+		'rules' => 'required|valid_email|trim',
+	),
+	array(
+		'field' => 'password',
+		'label' => _('Password'),
+		'rules' => 'required|min_length[6]|matches[password_confirm]',
+	),
+	array(
+		'field' => 'password_confirm',
+		'label' => _('Confirm password'),
+	),
+	array(
+		'field' => 'firstname',
+		'label' => _('First name'),
+		'rules' => 'required|max_length[50]|trim',
+	),
+	array(
+		'field' => 'lastname',
+		'label' => _('Last name'),
+		'rules' => 'required|max_length[50]|trim',
+	),
+	array(
+		'field' => 'institution',
+		'label' => _('Institution'),
+		'rules' => 'max_length[100]|trim',
+	),
+	array(
+		'field' => 'phone',
+		'label' => _('Phone number'),
+		'rules' => 'regex_match[/^\+\d{2,4}\s\d{2,4}\s\d{3,10}+$/i]|trim',
 	)
-);
\ No newline at end of file
+);
+
+/**
+ * Rules for editing users.
+ *
+ * @var array
+ */
+$config['users/edit'] = array(
+	array(
+		'field' => 'firstname',
+		'label' => _('First name'),
+		'rules' => 'required|max_length[50]|trim',
+	),
+	array(
+		'field' => 'lastname',
+		'label' => _('Last name'),
+		'rules' => 'required|max_length[50]|trim',
+	),
+	array(
+		'field' => 'email',
+		'label' => _('Email address'),
+		'rules' => 'required|valid_email|trim',
+	),
+	array(
+		'field' => 'institution',
+		'label' => _('Institution'),
+		'rules' => 'max_length[100]|trim',
+	),
+	array(
+		'field' => 'phone',
+		'label' => _('Phone number'),
+		'rules' => 'regex_match[/^\+\d{2,4}\s\d{2,4}\s\d{3,10}+$/i]|trim',
+	)
+);
+
+/**
+ * Rules for the settings page.
+ *
+ * @var array
+ */
+$config['settings/index'] = array(
+	array(
+			'field' => 'firstname',
+			'label' => _('First name'),
+			'rules' => 'required|max_length[50]|trim',
+	),
+	array(
+			'field' => 'lastname',
+			'label' => _('Last name'),
+			'rules' => 'required|max_length[50]|trim',
+	),
+	array(
+			'field' => 'email',
+			'label' => _('Email address'),
+			'rules' => 'required|valid_email|trim',
+	),
+	array(
+			'field' => 'institution',
+			'label' => _('Institution'),
+			'rules' => 'max_length[100]|trim',
+	),
+	array(
+			'field' => 'phone',
+			'label' => _('Phone number'),
+			'rules' => 'regex_match[/^\+\d{2,4}\s\d{2,4}\s\d{3,10}+$/i]|trim',
+	)
+);
+
+/* End of file form_validation.php */
+/* Location: ./application/config/form_validation.php */
+