To make public sidewalks safe for pedestrians, the owner or occupant of property immediately adjacent to a public sidewalk is responsible for the removal of any snow or ice that accumulates on the sidewalk.  Residents are required to clear snow from their sidewalk within 24 hours after the snow has ceased.  And remember, snow plows might create a blockage even after your drive has been cleaned.

In the event that removal of ice is impossible, the property owner or occupant is required to use sand, salt or other suitable substance to prevent the ice from being dangerous. This should also be done within 24 hours after the snow has ceased.