The Tunnelling Association of Canada (TAC) promotes the use of underground space in support of a growing urban population in key centers of Vancouver, Calgary, Edmonton, Toronto, Ottawa and Montreal and others. Growing needs for transportation and service infrastructure is being meet through the use of underground space. In addition, the use of underground space in Canada’s expansive mining and hydro electric sectors is also pushing the technologies for developing these spaces to new heights. The bi-annual TAC Conference will be held in Montreal, Quebec, Canada on October 17 to 20, 2012. We look forward to seeing everyone there. www.tac2012.ca