The Investment Industry Regulatory Organization of Canada (IIROC) announced today that it is adopting new fee models for market and dealer regulation effective April 1, 2012. As we discussed last month, the new fee models, which allocate and recover IIROC's annual operating cost on the basis of each function's cost drivers, were approved by regulators earlier this year. Comprehensive fee model guidelines were also published earlier this month. For more information, see IIROC Notice 12-0085.