Although all assignors are aware that you are certified, it is best to be proactive and contact each assignor in your area. Each assignor may assign matches in a different way, so be prepared to provide your email address and phone number to each one. You may also be asked to register with an on-line assigning service (e.g. GameOfficials, Arbiter). Your performance on the field will dictate the types and numbers of assignments you get. This includes professionalism – how you are dressed, your attitude, punctuality, and knowledge if the Laws of the Game.