In the United States, if the aircraft meets the ultralight definitions, no license is required. In the UK, trike-mounted paramotors are still classified as "self-propelled hang-gliders" if the "performance of the aircraft remains equivalent to one that can be foot-launched." However, if the machine has two seats, it is no longer an ultralight. In the U.S., such a craft would be governed under the sport pilot rules and regulated as a light sport aircraft powered parachute, which requires an aircraft N-number, and pilots must be licensed.