Easy. Usually you will get a mutiple entry visa withen a year. , E$ v( c- K' I2 R' m
Just go to the U.S consulate in Calgary website and you will find the information. , q) w+ d7 B: r: V5 E9 |8 mYou 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. # a# ]4 r% J9 J
good luck.