Alaska Request for Transport and Service (ARTS) and Return of Service (ROS) are two separate forms used to request and receive transportation services in Alaska. ARTS is a form used by an individual or business to request a specific type of service from a transportation provider. ARTS includes information such as the type of service requested, requested destination, and the estimated cost of the service. It also includes a signature from both the requesting party and the transportation provider. ROS is a form used by a transportation provider to report the services they have provided. ROS includes information such as the transportation provider, the type of service provided, and the cost of the service. It also includes a signature from both the requesting party and the transportation provider. There are two types of ARTS: Short-Term ARTS and Long-Term ARTS. Short-Term ARTS is used to request a service that is expected to be completed in one day. Long-Term ARTS is used to request a service that is expected to take more than one day. There are two types of ROS: Short-Term ROS and Long-Term ROS. Short-Term ROS is used to report a service that was completed in one day. Long-Term ROS is used to report a service that took more than one day.