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Tank Car, Truck, and Ship Loaders

SOC 53-7121.00Job Zone 2 · Some Preparationv.26.05

Context coveredThis framework covers bulk liquid and dry-bulk loading and unloading operations for tank cars, trucks, barges, and ships at petroleum, chemical, grain, and intermodal terminals, from entry-level task execution under supervision through executive-level operational leadership.

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. Outlet valves on tank cars, barges, and trucks — seal under direct supervisor guidance following written safety protocols at a bulk liquid loading facility.
  2. Tank car and truck load numbers — verify against written or verbal instructions under close supervision to confirm correct car placement at a rail spur or truck bay.
  3. Pump startup sequences — execute step-by-step under direction using posted procedures to initiate product flow at a fixed loading station.
  4. Vessel conditions and cleanliness — inspect visually under supervision to identify obvious deficiencies before loading begins at a chemical or petroleum terminal.
  5. Loading spouts — observe positioning cues and swing spouts into place under direct instruction as tank cars pass designated loading points.
  6. Basic hand tools and personal protective equipment — identify and use correctly under supervision during routine loading and unloading tasks on a dock or rail yard.
  7. Operating data such as gauge readings and product quantities — record manually on paper logs under trainer oversight during a supervised loading shift.
  8. Safety and loading procedure documents — read and interpret with guidance to follow step-by-step instructions at a product transfer terminal.
  9. Radio communications from supervisors and co-workers — listen actively and repeat back key instructions to confirm understanding during loading operations.
  10. Conveyor and hoist controls — operate at basic settings under direct oversight while moving bulk materials at a ship loading berth.
Developing
Mid-level / Established
  1. Outlet valves on multiple vessel types — seal independently and verify integrity against pressure checks as part of a standard pre-departure checklist at a petroleum loading dock.
  2. Load numbers and placement records — verify routinely across tank cars, barges, and trucks with minimal oversight, flagging discrepancies to a supervisor at a busy intermodal terminal.
  3. Pump flow rates and valve settings — adjust without direct prompting to maintain steady product transfer within established parameters during a routine loading cycle.
  4. Vessel weight and compliance checks — conduct systematically using loading tables and weight documentation to confirm readiness before cargo transfer at a bulk liquid facility.
  5. Loading spout positioning — manage independently across multiple cars during a shift, timing swings correctly to maintain throughput at a grain or chemical loading station.
  6. Product movement between storage tanks and vessels — monitor continuously and coordinate timing with adjacent crew members to sustain consistent flow during a standard operating shift.
  7. Conveyor, hoist, and railroad tank car unloading equipment — operate across routine loading and unloading cycles, troubleshooting minor jams or misalignments at a port terminal.
  8. Operating data including pump times and gauge readings — enter accurately into spreadsheet or database software at the end of each loading cycle with minimal error correction needed.
  9. Time management across concurrent loading tasks — apply to prioritize vessel sequencing and equipment availability during moderate-volume shifts at a multi-berth terminal.
  10. Non-routine product flow issues — recognize early warning signs and apply practiced corrective steps before escalating to a supervisor at a hazardous materials transfer site.
Proficient
Senior / Expert IC
  1. Seal integrity on outlet valves across all vessel types — verify autonomously using pressure testing and inspection criteria, resolving non-standard seal failures without supervisory input at a high-throughput terminal.
  2. Complex load placement discrepancies — investigate and resolve independently by cross-referencing manifests, verbal instructions, and system records to ensure accurate car positioning across an entire shift.
  3. Pump, valve, and cable systems — calibrate and adjust in real time across varying product viscosities and flow conditions, maintaining regulatory compliance during extended loading operations at a petrochemical facility.
  4. Full vessel compliance assessments — perform independently against regulatory and company standards, documenting findings and directing corrective actions before any loading commences at a marine or rail terminal.
  5. Multi-car and multi-vessel loading sequences — coordinate autonomously, managing spout positioning and timing across simultaneous loading points to maximize throughput and minimize downtime.
  6. End-to-end product flow across storage tanks and vessels — oversee without supervision, adjusting coordination with multiple crew members to prevent supply interruptions during peak-volume operations.
  7. Specialized material handling equipment including ship loaders and railroad unloading systems — operate and perform first-level troubleshooting across the full range of terminal equipment during non-routine situations.
  8. Operating records including ERP and logistics software entries — maintain with precision across a full shift, producing complete and audit-ready data logs for regulatory reporting at a compliant bulk transfer facility.
  9. Critical loading problems such as equipment failures or product contamination — analyze using direct observation and process knowledge, implementing solutions that maintain safety and schedule at an active terminal.
  10. New crew members and temporary workers — instruct in vessel-specific loading procedures, safety protocols, and equipment operation during on-the-job orientation at a tank car or ship loading facility.
Advanced
Lead / Principal / Executive
  1. Terminal-wide loading and unloading procedures — develop and standardize across all vessel types to ensure consistent safety compliance and operational efficiency throughout a multi-crew bulk transfer facility.
  2. Load verification and placement accuracy systems — design and implement, integrating database and ERP software tools to reduce errors and improve traceability across all shifts at a large intermodal terminal.
  3. Pump, valve, and flow control protocols — establish and periodically revise based on operational data and regulatory updates, setting performance benchmarks for all operators at a petroleum or chemical loading site.
  4. Vessel compliance and cleanliness inspection programs — oversee organization-wide, ensuring all loading staff apply consistent standards and that findings are systematically documented and actioned.
  5. Throughput optimization strategies — lead by analyzing spout positioning workflows and car sequencing patterns to increase loading rates while sustaining safety standards across an entire terminal operation.
  6. Coordinated product flow planning — direct across storage, transfer, and vessel loading functions, aligning crew schedules and equipment availability to meet contracted delivery timelines at a high-volume port facility.
  7. Capital equipment selection and commissioning — guide for conveyors, hoists, ship loaders, and specialized unloading systems, ensuring new installations meet operational and regulatory requirements at a terminal expansion site.
  8. Regulatory and safety reporting obligations — oversee for the entire facility, ensuring operating data and incident records are accurately maintained in compliance with transportation and environmental agency requirements.
  9. Complex operational crises such as spills, equipment failures, or scheduling breakdowns — lead response efforts, making real-time decisions that protect personnel, assets, and product integrity across a multi-berth terminal.
  10. Workforce competency development programs — design and champion for loading and unloading personnel, embedding structured on-the-job training, performance evaluation, and skills progression pathways across the organization.

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.

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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.
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Source anchors that ground each statement

Related titles
Barge Loader · Barges Loader · Bulk Tank Car Unloader · Car Loader · Car Unloader · Caustics Loader · Coal Dumping Equipment Operator · Dock Loader · Load Out Person · Loader · Loader Operator · Loading Operator
RAPIDS apprenticeships
—
O*NET skills
Operation and ControlOperations MonitoringReading ComprehensionTime ManagementActive ListeningWritingSpeakingCritical ThinkingMonitoringComplex Problem Solving
Knowledge domains
TransportationProduction and ProcessingEnglish LanguagePublic Safety and Security
Abilities
Multilimb CoordinationControl PrecisionRate ControlManual DexterityFar VisionProblem SensitivityDepth PerceptionReaction TimePerceptual SpeedStatic Strength
Work styles
CautiousnessDependabilityAttention to DetailIntegrityStress ToleranceSelf-Control
Technology
Data base user interface and query softwareMaterials requirements planning logistics and supply chain softwareOperating system softwareSpreadsheet softwareOffice suite softwareEnterprise resource planning ERP software
Tasks · seed anchors for statements
  1. Seal outlet valves on tank cars, barges, and trucks.
  2. Verify tank car, barge, or truck load numbers to ensure car placement accuracy based on written or verbal instructions.
  3. Start pumps and adjust valves or cables to regulate the flow of products to vessels, using knowledge of loading procedures.
  4. Check conditions and weights of vessels to ensure cleanliness and compliance with loading procedures.
  5. Observe positions of cars passing loading spouts, and swing spouts into the correct positions at the appropriate times.
  6. Monitor product movement to and from storage tanks, coordinating activities with other workers to ensure constant product flow.
  7. Operate ship loading and unloading equipment, conveyors, hoists, and other specialized material handling equipment such as railroad tank car unloading equipment.
  8. Record operating data such as products and quantities pumped, gauge readings, and operating times, manually or using computers.
CIP education codes
49.020849.010649.010249.010849.010551.0810

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.