Two additional categories called "Site Access Status" and "Site Access Clearance" exist not for access to information purposes but for those that require physical access to sites or facilities designated by CSIS as areas "reasonably be expected to be targeted by those who engage in activities constituting threats to the security of Canada". Designated areas include Government Houses, official residences of government officials, Parliament, nuclear facilities, airport restricted areas, maritime ports, and any large-scale events that are sponsored by the federal government (e.g., 2010 Winter Olympics).[7]