You need to change your driver licence, health card, etc. but if you want to have tuition free training courses, you need to be live in Quebec more than 12 months to be qualified, or you pay for tuition fee.
Normally, you have to live in one porvince more than 12 months to be the resident of that province.
Don't forget, for student loan, you need to live in that province with consecutive 12 months without going to post secondary school, so that you can apply for student in that province. otherwise, you still apply your student in previous province.
haha... that's all.