Easy. Usually you will get a mutiple entry visa withen a year. : K( h/ K+ m" [4 ]2 X$ E: J( YJust go to the U.S consulate in Calgary website and you will find the information. % ?$ a* Q( M. Y6 e8 Q9 GYou 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. # |' {8 U* t, J, h: T2 M0 z+ lgood luck.