The CRTC said Tuesday it has granted a request from Bell Canada Enterprises Inc. subsidiaries Bell Aliant and Bell Canada to designate three co-location power tariffs as interim while the commission considers the companies’ application to increase those rates permanently. Effective immediately, the interim tag will apply to the companies’ Quebec and Ontario market co-location arrangement rates for interconnecting Canadian carriers and digital subscriber line services using specified power levels. Bell told the commission that the cost of providing the services had increased with the costs of electrical power between 2002 and 2010. At the same time, Bell said, the regulated interconnection tariff rates fell by approximately nine per cent during that time due to the application of an adjustment formula measuring both inflation and productivity offsets. “The Bell companies further submitted that, based on a review of their updated costs, the current co-location power rates are not sufficient to permit appropriate recovery of the costs associated with the delivery of electrical power to co-location arrangements in their central offices,” the CRTC said in a decision Tuesday.