Occupation · SOC 43-5053
Postal Service Mail Sorters, Processors, and Processing Machine Operators
Prepare incoming and outgoing mail for distribution for the United States Postal Service (USPS). Examine, sort, and route mail. Load, operate, and occasionally adjust and repair mail processing, sorting, and canceling machinery. Keep records of shipments, pouches, and sacks, and perform other duties related to mail handling within the postal service. Includes postal service mail sorters and processors employed by USPS contractors.
Median wage
$56,530
$42,600–$74,050
Projected growth
—
—
Annual openings
—
per year
Employed (US)
111,930
Job Zone 2
Typical preparation
Some preparation
Stackable credential programs
0 mapped
Core skills
MonitoringSpeakingReading ComprehensionCritical ThinkingCoordinationTime ManagementOperations MonitoringJudgment and Decision MakingActive ListeningSocial PerceptivenessOperation and ControlService OrientationComplex Problem SolvingWritingQuality Control AnalysisInstructingTroubleshootingSystems AnalysisManagement of Personnel ResourcesLearning StrategiesActive LearningPersuasionMathematicsSystems EvaluationNegotiationProgrammingEquipment MaintenanceOperations AnalysisRepairingEquipment SelectionTechnology DesignScienceManagement of Material ResourcesManagement of Financial ResourcesInstallation
Knowledge areas
English LanguageProduction and ProcessingCustomer and Personal ServiceAdministrativeAdministration and ManagementTransportationPublic Safety and SecurityComputers and ElectronicsEducation and TrainingMathematicsPersonnel and Human ResourcesCommunications and MediaTelecommunicationsEconomics and AccountingLaw and GovernmentPsychologyGeographySociology and AnthropologyMechanicalTherapy and CounselingEngineering and TechnologyPhilosophy and TheologySales and MarketingMedicine and DentistryFood ProductionForeign LanguageChemistryBiologyPhysicsHistory and ArcheologyBuilding and ConstructionDesignFine Arts
Technology & tools
Address Management System AMSAutomated Package Processing System APPSBarcode reader softwareDelivery Routing System DRSDelivery operations information system DOISDirectory softwareElectronic Time Clock ETCMicrosoft ExcelMicrosoft Office softwareMicrosoft OutlookMicrosoft SharePointMicrosoft WordMulti-line optical character reader OCR softwareNCR Advanced StoreSAP softwareTeradata DatabaseTime and Attendance Collection System TACS
Representative tasks
Performing General Physical ActivitiesHandling and Moving ObjectsCommunicating with Supervisors, Peers, or SubordinatesGetting InformationEstablishing and Maintaining Interpersonal RelationshipsIdentifying Objects, Actions, and EventsProcessing InformationControlling Machines and ProcessesMonitoring Processes, Materials, or SurroundingsWorking with ComputersUpdating and Using Relevant KnowledgeMaking Decisions and Solving ProblemsCoaching and Developing OthersJudging the Qualities of Objects, Services, or PeopleTraining and Teaching OthersEvaluating Information to Determine Compliance with StandardsDocumenting/Recording InformationCoordinating the Work and Activities of OthersAnalyzing Data or InformationInspecting Equipment, Structures, or MaterialsAssisting and Caring for OthersOrganizing, Planning, and Prioritizing WorkProviding Consultation and Advice to OthersInterpreting the Meaning of Information for OthersOperating Vehicles, Mechanized Devices, or EquipmentDeveloping and Building TeamsResolving Conflicts and Negotiating with OthersEstimating the Quantifiable Characteristics of Products, Events, or InformationThinking CreativelyDeveloping Objectives and StrategiesRepairing and Maintaining Electronic EquipmentRepairing and Maintaining Mechanical EquipmentScheduling Work and ActivitiesPerforming Administrative ActivitiesPerforming for or Working Directly with the PublicGuiding, Directing, and Motivating SubordinatesCommunicating with People Outside the OrganizationDrafting, Laying Out, and Specifying Technical Devices, Parts, and EquipmentStaffing Organizational UnitsMonitoring and Controlling Resources
Competency framework
Skill expectations by proficiency level.
emerging
Basic mail sorting protocols — follow step-by-step under direct supervisor guidance on the processing floor.Odd-sized mail items — identify and separate by hand using established category rules in a supervised mail room environment.Bar-code sorter controls — recognize and operate basic functions under direct instruction during initial on-the-job training.Equipment jam indicators — identify warning signals and report blockages to a supervisor on the sorting line.Postal address formats — read and interpret standard delivery information on envelopes and packages in a processing facility.Mail classification categories — distinguish between standard letter, flat, and parcel classes following posted sorting guides.Computer scanning equipment — perform basic scan operations on mail pieces under close supervision in a processing center.Special-handling labels and markings — recognize and flag items requiring separate routing with supervisor assistance.Manual dexterity tasks — handle and orient individual mail pieces at required speed during initial production shifts.Workplace safety rules — follow established protocols for lifting, posture, and machine interaction on the processing floor.
developing
Optical character readers and addressographs — operate and monitor throughput with minimal oversight during routine production shifts.Sorting equipment jams — clear blockages using standard procedures and restore normal operations without supervisor intervention.Hand-sorted mail exceptions — process items that automated equipment cannot read, applying category flexibility across familiar mail types.Bar-coding software interfaces — enter and query mail-tracking data accurately within the facility's database system.Mail volume fluctuations — adjust personal work pace and sequencing to maintain throughput targets during peak processing periods.Routing discrepancies — identify and correct misrouted mail pieces by cross-referencing ZIP code and address databases.Inventory management software — update mail piece counts and tray records in the facility's tracking system during each shift.Colleague coordination — communicate sorting priorities and handoff points clearly with co-workers across adjacent processing stations.Static and trunk strength demands — consistently meet physical lifting and carrying requirements for heavy mail trays over a full shift.Time accounting software — log work hours and productivity records accurately within the facility's scheduling system.
proficient
Multiple equipment platforms — operate, monitor, and switch between bar-code sorters, scanners, and optical character readers autonomously across all shift conditions.Complex jam scenarios — diagnose and clear non-routine mechanical blockages in sorting equipment, minimizing downtime across the production line.Non-standard mail streams — sort and route unusual, damaged, or ambiguous mail items independently by applying critical thinking and postal classification knowledge.Equipment performance monitoring — detect throughput anomalies and take corrective action before errors propagate through the downstream sort.Special-handling mail — segregate, document, and route regulated, fragile, or high-value items in full compliance with postal service standards.Cross-functional coordination — align sorting activities with dispatch schedules, communicating timing and volume status effectively across operational teams.Database query and tracking — retrieve, interpret, and reconcile mail-tracking records using database and ERP software to resolve delivery discrepancies.Document management systems — maintain accurate records of processed volumes, exception items, and equipment incidents throughout each production cycle.Perceptual speed and accuracy — sustain high-speed visual inspection of addresses and barcodes with consistent error rates well below facility quality thresholds.Mentorship of newer sorters — demonstrate correct techniques for hand sorting and machine operation to recently hired colleagues on the processing floor.
advanced
Shift-level workflow strategy — design and assign sorting sequences, station assignments, and equipment allocation to maximize throughput across an entire processing shift.Equipment reliability oversight — lead proactive monitoring routines across all sorting machines, reducing jam frequency and unplanned downtime at the facility level.Quality assurance standards — establish and enforce accuracy and productivity benchmarks for the sorting team, driving continuous improvement in error rates.Cross-departmental coordination — represent the processing team in operational planning meetings with dispatch, delivery, and management to align facility-wide priorities.Training program development — create structured on-the-job training materials and checklists for new sorters and processing machine operators across all equipment types.ERP and inventory system governance — oversee accurate use of enterprise resource planning and inventory software across the team, resolving systemic data discrepancies.Staffing and scheduling decisions — evaluate daily volume forecasts and staff availability to build shift schedules that meet service-level commitments.Incident and exception escalation — lead the investigation of recurring sorting errors or equipment failures, documenting findings and recommending corrective actions to management.Performance coaching — conduct regular feedback sessions with developing sorters, identifying skill gaps and setting measurable improvement goals aligned with facility standards.Operational process improvement — analyze workflow bottlenecks using production data and spreadsheet tools, proposing and piloting changes that improve facility-wide sorting efficiency.
Also known as
43 alternate job titles map to this occupation.
AssorterAutomation ClerkComputer Forwarding System Markup Clerk (CFS Markup Clerk)Dead Mail CheckerDistribution ClerkDistribution HandlerDistributorEquipment OperatorFile Conversion OperatorFlat Sorter OperatorFlat Sorter ProcessorFlat Sorting Machine Clerk (FSM Clerk)General ExpeditorLetter Sorting Machine Operator (LSM Operator)Mail Distribution ClerkMail Distribution Scheme ExaminerMail DistributorMail ExaminerMail Forwarding System Markup ClerkMail HandlerMail Handler AssistantMail Handler Equipment OperatorMail Handler SorterMail OpenerMail Processing AgentMail Processing ClerkMail ProcessorMail SorterMail WeigherMailing Section ClerkOperations Label ClerkPackage SorterParcel Post Distribution Machine Operator (PDPMO)Post Office Markup ClerkPostal Service Mail ProcessorPostal Transportation ClerkPresort Letter OperatorProcessorSmall Package and Bundle Sorter Clerk (SPBS Clerk)Sorter