11 00 00 Equipment
11 01 00 Operation and Maintenance of Equipment
11 01 10 Operation and Maintenance of Vehicle and Pedestrian Equipment 11 01 20 Operation and Maintenance of Commercial Equipment 11 01 30 Operation and Maintenance of Residential Equipment 11 01 40 Operation and Maintenance of Foodservice Equipment 11 01 50 Operation and Maintenance of Educational and Scientific Equipment 11 01 56 Operation and Maintenance of Observatory Equipment 11 01 60 Operation and Maintenance of Entertainment and Recreation Equipment 11 01 70 Operation and Maintenance of Healthcare Equipment 11 01 80 Operation and Maintenance of Facility Maintenance and Operation Equipment 11 01 90 Operation and Maintenance of Other Equipment