Job Families /Job FamilyBuilding and Grounds Cleaning and Maintenance OccupationsOccupations (10)Zone 0 — Unknown (2)Building Cleaning Workers, All OtherGrounds Maintenance Workers, All OtherZone 1 — Job Zone One: Little or No Preparation Needed (2)Landscaping and Groundskeeping WorkersMaids and Housekeeping CleanersZone 2 — Job Zone Two: Some Preparation Needed (4)First-Line Supervisors of Housekeeping and Janitorial WorkersPest Control WorkersPesticide Handlers, Sprayers, and Applicators, VegetationTree Trimmers and PrunersZone 3 — Job Zone Three: Medium Preparation Needed (2)First-Line Supervisors of Landscaping, Lawn Service, and Groundskeeping WorkersJanitors and Cleaners, Except Maids and Housekeeping Cleaners Food Preparation and Serving Related OccupationsPersonal Care and Service Occupations