there is no assurance that this will happen. Industry Canada can revoke a company’s licence at any time if the company does not comply with the licence’s con- ditions. While we believe that we comply with the conditions of our licences, there is no assurance that Industry Canada will agree. Should there be a disagree- ment, this could have a material and negative effect on the Bell Canada companies. In October 2001, the Minister of Industry announced plans for a national review of Industry Canada’s proce- dures for approving and placing wireless and radio towers in Canada, including a review of the role of municipal authorities in the approval process. If the consultation process results in more municipal involve- ment in the approval process, there is a risk that it could significantly slow the expansion of wireless  networks in Canada. This could have a material and negative effect on the operations of the Bell Canada companies. The final report from the National Antenna Tower Policy Review Committee was filed with Industry Canada in September 2004. Industry Canada is now reviewing the report and considering what next steps, if any, it will take, after which it may invite comments from interested parties, including the wireless carriers, on the report and its recommendations. It is not possi- ble to predict at this time if or when any action might be taken on the findings of the report. A significant amount of revenue earned by Bell Canada’s Enterprise unit comes from a small number of major customers. If we lose contracts with these major  customers and cannot replace them, it could have a  material and negative effect on our financial results. In 2004, we announced an early retirement program and early departure program for Bell Canada employ- ees. We estimate annual savings of approximately $390 million relating to these programs because of lower salaries, bonuses and non-pension benefits. There is a risk that the amount we expect to save each year from these programs will be lower than expected if, for example, we incur outsourcing, replacement and other costs. It has been suggested that some radio frequency emis- sions from cellphones may be linked to certain med- ical conditions. In addition, some interest groups have requested investigations into claims that digital trans- missions from handsets used with digital wireless Some studies suggest that using handheld cellphones while driving may result in more accidents. It is possi- ble that this could lead to new regulations or legisla- tion banning the use of handheld cellphones while driving, as it has in Newfoundland and Labrador and in several U.S. states. If this happens, cellphone use in vehicles could decline, which would negatively affect the business of the Bell Canada companies. Bell Mobility may be subject to financial penalties by way of fines, administrative monetary penalties and/or demands for restitution of a portion of the SAFs charged to cellular subscribers if it is found to have contravened the misleading advertising provisions of the  Competition Act . SAFs are charged on a monthly basis to Bell Mobility cellular subscribers to assist Bell Mobility to recover certain costs associated with its mobile communica- tions network. These costs include maintenance costs, the installation of new equipment, retrofitting of new technologies and fees for spectrum licences. These costs also include the recovery of the contribution tax charged by the CRTC to support telephone services in rural and remote areas of Canada. On December 9, 2004, Bell Canada was notified by the Competition Bureau that the Commissioner of Competition had initiated an inquiry under the mis- leading advertising provisions of the  Competition Act concerning Bell Mobility’s description or representa- tion of system access fees (SAFs) and was served with a court order, under section 11 of the  Competition Act , compelling Bell Mobility to produce certain records and other information that would be relevant to the Competition Bureau’s investigation. Competition Bureau’s Investigation Concerning  System Access Fees Bell Canada Enterprises  2004 Annual Report 75 Revenue from Major Customers Voluntary Departure Programs Health Concerns about Radio Frequency Emissions Increased Accidents from Using Cellphones