Some responsibilities overlap
The division is not always a neat split. Governments can work together or act under different powers on the same issue. For example, provinces and territories run most health services, while the federal government provides health funding and sets national rules through federal law. Immigration and agriculture are examples of areas where federal and provincial powers can both apply.
A useful rule of thumb
If an issue is local, start with your municipality. For schools, hospitals or provincial roads, look to your province or territory. For national laws, passports, defence or cross-border issues, look to the federal government. The exact answer can depend on the service and where you live.