0 J) F- M5 N" v2 X- v ]- R( GA 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. / F- P! c Q F" y9 g # [, e: X; s: s8 q% |; ?是否只要换证即可?