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I think it will happen for the first time in 2011 for the IPC area. Can't decide if it's good or bad-but I guess the sprinkler malfunction, installation, or accident % involved is better than someone dying as a result of a fire.
It's always best to consult with your local sales rep for assistance on product/system selection and submission paperwork and the local building officials as they have final says on what firestops are acceptable in your jurisdiction.