flight plan dialog in their pilot client or "pre-filing" by using the myVATSIM ICAO flight planning form, also used by flight planning sites and flight tracking tools such as projectFLY, SimBrief, SimToolkitPro, and Volanta. Air Traffic Controllers are required to undertake mandatory training before they are permitted to direct traffic. The Global Ratings Policy defines the requirements for each ATC rating, preceding local division restrictions. The ratings are as follows: S1 - Tower Trainee - no particular competencies, validated to control some aerodrome positions (defined locally) S2 - Tower Controller - validated to control Delivery (DEL), Ground (GND) and Tower (TWR) facilities except procedural tower (subject to training) S3 - TMA Controller - validated to control all facilities up to Approach (APP/DEP) level C1 - Enroute Controller - validated to control all available facilities, including Center (CTR) C3 - Senior Controller - a special rating awarded to users at the discretion of their local region/division for seniority/recognition Events The network creates and sponsors regular events to encourage interaction between pilots and controllers, during which traffic can approximate real-life levels. Worldflight Worldflight Australia is an annual virtual round-the-world charity event that has been run continuously since 2001, where 11 teams from different countries in their own fixed-base aircraft simulators fly to over 40 destinations around the world on VATSIM to raise money for the Australian Royal Flying Doctor Service. VATSIM air traffic controllers provide service throughout this event. In 2006, fifteen enthusiasts conducted a 130-hour flight in a full-sized Boeing 747-400 simulator, for which Qantas provided food. Cross the Pond Cross the Pond is a biannual event during which pilots complete transatlantic flights across "The Pond" between Europe and Northern America. The event alternates between westbound and eastbound every 6 months. Certain airports are selected a few months prior for which pilots can book slots to fly for, and VATSIM air traffic controllers provide full service for each of these airports throughout the event. The event is meticulously planned and coordinated by all major VATSIM staff members, to make sure that pilots enjoy their service. During the Spring 2020 event, VATSIM surpassed its record for most pilots connected to the network with 3,111. Regional events In addition to the global/international events that VATSIM sponsors and advertises, regional events can be found daily throughout the network. These events can range from small in size, including only a few airports or facilities, to