The advanced driving test is a special exam for motorists who can drive to a skill level substantially above average, and candidates who pass are called advanced drivers. It is available from several societies, including IAM RoadSmart, the Royal Society for the Prevention of Accidents, the Driving Instructors' Association DIAmond Advanced Test and the British Motorcyclists Federation (BMF) Blue Riband. There is no single "advanced test", so standards are different depending on the provider. It does not affect the driver's own licence. The test is mostly UK based; and is available for several types of vehicle depending on the provider.