Easy. Usually you will get a mutiple entry visa withen a year. 3 Y/ z/ k& e# Y; X7 {' Q+ r( x+ y
Just go to the U.S consulate in Calgary website and you will find the information. * z4 ]7 J9 {, Z5 p3 d
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. ' K7 y. L9 F8 Z1 Z* ~+ r
good luck.