Definition: The International Federation of Model Auto Racing or IFMAR is an association promoting professional championship RC racing worldwide. It establishes uniform rules governing radio controlled racing in its over 40 member countries, represented by four member organizations or blocs:
- EFRA - European Federation of RC Automobiles
- FEMCA - Far East Model Car Association
- ROAR - Remotely Operated Auto Racers
- FAMAR - Fourth Association of Model Auto Racing

