NSXNational Skills ExchangeSign in
Back to Framework

Postal Service Clerks

SOC 43-5051.00Job Zone 2 · Some Preparationv.26.05

Context coveredThis framework covers postal service clerk competencies from entry-level counter and sorting duties through senior operational leadership in a USPS or equivalent postal facility environment.

Sources:O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.SkillsCrosswalkSkillsCrosswalk — O*NET enrichment + adjacency index. Opens in new tab.
Emerging
Entry / Apprentice
  1. Letter and parcel weights — measure and record under direct supervisor guidance at a post office counter.
  2. Postage rates and mailing cost tables — reference and apply with assistance when processing standard outgoing mail.
  3. Incoming and outgoing mail — sort by hand into basic destination categories following established sorting protocols.
  4. Package and envelope condition — inspect for obvious damage or insufficient postage under close supervisory review.
  5. Recipient signatures — collect and log for registered or special delivery items using provided forms and checklists.
  6. Mail carts and containers — transport between designated workstations following prescribed routes on the facility floor.
  7. Common mail regulations and postage rate charts — consult and relay basic answers to customer inquiries at the service window.
  8. Electronic mail-sorting device operation — perform entry-level scanning tasks under direct instruction in a postal processing area.
  9. Point-of-sale software — process straightforward customer transactions with supervisor oversight at the retail counter.
  10. Workplace safety and handling procedures — follow established guidelines when moving parcels and containers in a postal facility.
Developing
Mid-level / Established
  1. Letter and parcel mailing costs — compute accurately for standard and common specialty mail types with minimal supervisory input at a busy service counter.
  2. Postage sufficiency and package compliance — check outgoing items against current USPS regulations routinely without prompting during daily processing shifts.
  3. Electronic mail-sorting and scanning devices — operate consistently to process moderate volumes of mixed mail across multiple destination categories.
  4. Signature acquisition records — maintain accurately for registered and special delivery items across a full shift, resolving minor discrepancies independently.
  5. Customer mail regulation questions — answer with confidence and accuracy, drawing on working knowledge of postage rates and post office box procedures.
  6. Mail flow between workstations — coordinate transport efficiently to keep processing queues moving during moderate-traffic periods.
  7. Inventory management software — track mailing supplies and flag replenishment needs as part of routine counter and back-office duties.
  8. Time management across concurrent tasks — balance customer service, sorting, and administrative duties during standard postal operating hours.
  9. Non-standard or oversized parcel requirements — identify appropriate mailing class and surcharges using rate reference materials with limited guidance.
  10. Workplace incidents and mail irregularities — document and report following established postal procedures during daily operations.
Proficient
Senior / Expert IC
  1. Complex mailing cost scenarios — calculate independently for international, bulk, and specialty mail classes in a high-volume postal retail environment.
  2. Mail condition and regulatory compliance — audit outgoing batches thoroughly, catching and resolving postage and packaging issues before dispatch.
  3. High-volume electronic sorting operations — manage and troubleshoot device settings to maintain throughput accuracy during peak processing periods.
  4. Special delivery and registered mail workflows — oversee end-to-end signature collection, tracking, and recordkeeping without supervisory intervention.
  5. Escalated customer inquiries — resolve complex questions about mail regulations, rates, and procedures authoritatively at the public service counter.
  6. Cross-station mail transport logistics — optimize routing and sequencing to minimize delays across the full postal facility floor.
  7. Point-of-sale and accounting software — reconcile daily transaction records, identify discrepancies, and produce accurate end-of-day reports.
  8. New colleague onboarding — demonstrate sorting device operation, postage calculation, and compliance checks to newly assigned clerks on the work floor.
  9. Mail irregularities and customer complaints — investigate root causes and implement corrective actions within established postal service guidelines.
  10. Service quality monitoring — track own and peer performance against accuracy and throughput benchmarks, adjusting methods to meet postal facility standards.
Advanced
Lead / Principal / Executive
  1. Facility-wide mail processing standards — establish and communicate best-practice protocols for weighing, sorting, and postage verification across all clerk positions.
  2. Compliance and regulatory updates — interpret new USPS regulations and translate them into updated procedures, training materials, and counter guidance for the entire team.
  3. Workload and scheduling strategy — design shift assignments and task rotations to optimize throughput and customer service levels across peak and off-peak postal periods.
  4. Technology adoption — evaluate and lead implementation of updated electronic sorting, POS, and inventory management systems across the postal facility.
  5. Performance metrics and quality assurance — define accuracy, throughput, and customer satisfaction targets and hold the team accountable through structured review processes.
  6. Staff development programs — design and deliver competency-based training curricula covering sorting operations, postage compliance, and customer service for new and experienced clerks.
  7. Cross-functional coordination — liaise with delivery, transportation, and administrative units to align mail processing workflows with facility-wide operational goals.
  8. Customer escalation resolution — adjudicate complex or sensitive customer disputes regarding mail loss, damage, or regulatory compliance at the organizational level.
  9. Continuous process improvement — identify bottlenecks in sorting, postage, and transport workflows and lead structured initiatives to reduce errors and processing times.
  10. Organizational culture and work standards — model and reinforce dependability, integrity, and attention to detail as behavioral norms across the full postal service clerk team.

AI-at-Work Competency Framework

Sources:Anthropic Economic IndexAnthropic Economic Index — release_2026_03_24. Opens in new tab.Jadhav & Danve, 2026Skill Automation Feasibility Index — Jadhav & Danve, 2026 (arXiv:2604.06906). Opens in new tab.WEF Skills TaxonomyWEF Skills Taxonomy 2021 — Building a Common Language for Skills at Work. Opens in new tab.

A 4-level framework describing how a worker at each mastery level uses, directs, and evaluates AI tools in this occupation. Each statement cites its evidence inline. Subscribe for $19.99/mo to read the full framework — or sign in if you have a subscription.

  1. Emerging
  2. Developing
  3. Proficient
  4. Advanced
Monthly subscription · Stripe-hosted · unlocks AI-at-Work and Pathsmith™ Durable Skills across the full library

Pathsmith™ Durable Skills Framework

Sources:Pathsmith™ Durable SkillsPathsmith™ Durable Skills Framework — America Succeeds + CompTIA. Opens in new tab.O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.
Subscriber feature

Ten durable-skill domains mapped to four proficiency levels for this occupation. Subscribe to unlock the full Pathsmith™ Durable Skills Framework across all 1,016 occupations.

Monthly subscription · Stripe-hosted · unlocks AI-at-Work and Pathsmith™ Durable Skills across the full library
Show O*NET source anchors44 anchors · skillscrosswalk.com

O*NET enrichment · skillscrosswalk.com

Suggest an O*NET correction

Source anchors that ground each statement

Related titles
Annuitant HCA (Annuitant Holiday Clerk Assistant) · Bulk Clerk · Bulk Mail Clerk · Bulk Mail Technician · Business Mail Entry Clerk · City Carrier · City Carrier Assistant (CCA) · Clerk · Counter Clerk · Delivery Associate · Delivery Clerk · Distribution Clerk
RAPIDS apprenticeships
—
O*NET skills
Active ListeningSpeakingService OrientationReading ComprehensionMonitoringSocial PerceptivenessTime ManagementCritical Thinking
Knowledge domains
Customer and Personal ServiceEnglish LanguageMathematicsSales and MarketingAdministrativeComputers and ElectronicsTransportation
Abilities
Oral ComprehensionOral ExpressionNear VisionWritten ComprehensionSpeech ClaritySpeech RecognitionManual DexterityTrunk StrengthDeductive ReasoningInformation Ordering
Work styles
DependabilityAttention to DetailIntegrityCooperationCautiousnessSelf-Control
Technology
Accounting softwareEnterprise resource planning ERP softwareTime accounting softwareInventory management softwareOperating system softwarePoint of sale POS softwareHuman resources software
Tasks · seed anchors for statements
  1. Weigh letters and parcels, compute mailing costs based on type, weight, and destination, and affix correct postage.
  2. Check mail to ensure correct postage and that packages and letters are in proper condition for mailing.
  3. Sort incoming and outgoing mail, according to type and destination, by hand or by operating electronic mail-sorting and scanning devices.
  4. Obtain signatures from recipients of registered or special delivery mail.
  5. Answer questions regarding mail regulations and procedures, postage rates, and post office boxes.
  6. Transport mail from one work station to another.
CIP education codes
01.010601.820101.820201.820301.820451.0705

Sources: O*NET v30.2 (CC BY 4.0), SkillsCrosswalk.com, LER.me®, Anthropic Economic Index, SAFI (Jadhav & Danve, 2026), WEF Skills Taxonomy 2021, Pathsmith™ Durable Skills Framework. © 2026 EBSCOed.