Easy. Usually you will get a mutiple entry visa withen a year. + ^+ {2 S( m5 j% `
Just go to the U.S consulate in Calgary website and you will find the information. 7 l$ Q$ A5 _3 b M% h; ]
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. 6 r+ Y% @, {9 a5 \( T; E9 K+ ]
good luck.