Originally Posted by Find Finn
Our road traffic laws state, that you have to remove any and all ice and snow, which may hinder your view out of the car or be dangerous to other road users.
Our laws say the same thing (probably varies state by state), but good luck getting everybody to pay attention to it. It's not very widely enforced.
Also have Americans not heard of winter tires?
It's a big country. It doesn't snow often enough in much of the country to really warrant serious preparation like winter tires. The people up north are pros, but it gets less common the farther south you go. It'd be kind of silly to buy winter tires and drive around on them for the one storm every five years that might require it.