, ]% m6 W c3 k# N; p2 Y4 h9 wA valid licence from another Canadian jurisdiction can be exchanged for and equivalent class (Classes 1 through 7). Testing is not normally required, but medical and vision requirements must be met. A medical and proof of vision screening is required for Class 1, 2 and 4 and may be required for all other classes if applicant has a medical condition that may affect their ability to safely operate a motor vehicle. : j* y0 x U% F6 V, ~. c3 q. Y6 { : ]7 w# e3 C" n+ ]' [6 N是否只要换证即可?