Common Area Maintenance ("CAM") fees are expenses that tenants reimburse Landlords to cover the costs associated with maintaining the shared areas of a commercial property. Common areas are spaces used by all tenants, such as hallways, elevators, parking lots, lobbies, meeting rooms, and public restrooms. Maintenance services typically include security, janitorial, landscaping, maintenance and repair, waste management, and occasionally utilities. In addition to base rent, many leases include CAM fees as part of the lease's triple net ("NNN") charges. In these leases, tenants pay the bulk of the building or center's operating expenses. The phrase "triple net" refers to the three types of charges generally included: insurance, property taxes, and CAM fees.