Under RAB 65.250, what occurs when a controller has not exercised a particular rating for six months or more?

1. The holder may not exercise that rating until the licensing authority has verified psychophysical fitness and practical competence through the required tests.
2. The license is permanently cancelled with no reinstatement permitted.
3. The controller may continue controlling traffic as long as their medical certificate is valid.
4. The controller is automatically transferred to another department.