Easy. Usually you will get a mutiple entry visa withen a year. ' F3 v( i5 J& j5 a" T+ XJust go to the U.S consulate in Calgary website and you will find the information. 6 b+ R0 A/ {/ \4 B& vYou need to book the interview in far advance, usually a month or half a month prior to the interview. Sometimes if you are in a hurry, you have to go to Vancouver for the visa. , n; g; u+ V* g1 I5 ^good luck.