In a number of countries, remote voting in a supervised environment is open to certain categories of voters or situations. This form of remote voting is comparable to traditional voting in polling stations. Many countries that allow remote voting in a non-supervised environment also provide for remote voting in a supervised environment (see below 3.). In a number of these states remote voting in a supervised environment is the general rule for voting in the country, whereas exceptions exist for voting from abroad. Austria, Sweden and Estonia are examples of this legal situation.