First-line supervisors of food preparation and serving workers directly supervise and coordinate activities of workers engaged in preparing and serving food.

Hospital housekeepers are responsible for sustaining a sterile environment by routinely clean patient rooms, nursing units, surgical areas, administrative offices, laboratory areas, waiting areas and public restrooms, as well as launder all hospital linen. Using various cleaning chemicals and disinfectants, housekeepers wipe equipment, clean furniture, polish floors and vacuum carpets. They make beds, empty trash and restock medical supplies. Housekeepers also collect dirty laundry from all patient areas and distribute the clean linen and hospital gowns back to the appropriate floors.

Janitors keep buildings in clean and orderly condition. They perform heavy cleaning duties, such as cleaning floors, shampooing rugs, washing walls and glass, and removing rubbish. They may repair furnace and boiler, perform routine maintenance activities, notifying management of need for repairs, and cleaning snow or debris from sidewalk.