Easy. Usually you will get a mutiple entry visa withen a year. Z8 \- h' x' r o. z2 D
Just go to the U.S consulate in Calgary website and you will find the information. p+ I4 o8 C1 m; F
You 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. * D- }& G( K0 F1 ~- Z' X7 |/ {9 M
good luck.