Joplin Missouri Truck check-in line. We will escort you in line. 3 This entry was posted in Disaster Areas We have supported Nationwide Government Self Loading Knuckle Boom Hauling Trucks and tagged Checkin Grapple Truck Joplin Missouri on May 7, 2011 by Tanya. We want this check-in process to go smoothly for you. You must preregister before you go to the check-in line. We must have a representative on the ground to sign you in and manage the paper work. Make sure your trucks are in safe order.