Via permissions page and system status page.
Warning: Declaration of CRM_Volunteer_Permission::check($permissions) should be compatible with CRM_Core_Permission::check($permissions, $contactId = NULL) in /home/site/public_html/wp-content/uploads/civicrm/ext/org.civicrm.volunteer/CRM/Volunteer/Permission.php on line 0
Civi 5.6 Wordpress 4.9.8