YYZ Check-in Time
If you have Global Entry or NEXUS, you bypass the line and approach a machine. There are 2 GE machines and 2 NEXUS machines. If you don't have a NEXUS card, you can't use the NEXUS machine. If you have a NEXUS card, then you are also enrolled in GE and you may therefore use either. If you use NEXUS, you will use the shorter security line. The same privilege might also be extended to you if you use Global Entry, but I am not sure about that. If you have neither and your flight is earlier than 10am you will quickly understand why we are all recommending GE and NEXUS.