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Plumbers, Pipefitters, and Steamfitters

SOC 47-2152.00Job Zone 3 · Medium Preparationv.26.05

Context coveredThis framework covers residential, commercial, and industrial plumbing, pipefitting, and steamfitting practice — from entry-level pipe assembly and blueprint reading through advanced project leadership, workforce development, and organizational management.

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. Valve keys and wrenches — identify and use to shut off steam, water, or gas from pipe sections under direct supervision on an active job site.
  2. Basic pipe fittings and couplings — assemble using clamps, screws, or plastic solvent following step-by-step instruction in a residential construction setting.
  3. Measuring instruments such as rulers and levels — locate and mark pipe installation positions on walls and floors under journeyman guidance.
  4. Hand saws and pipe cutters — cut pipe to specified lengths following supervisor-provided dimensions on a residential plumbing project.
  5. Blueprint symbols and basic pipe diagrams — recognize and interpret with direct support to understand work scope before starting assigned tasks.
  6. Underground water and sanitary piping components — assist with installation by digging trenches and positioning pipe sections under close supervision.
  7. Safety protocols for working with torches and soldering equipment — follow established procedures to prevent injury during pipe assembly tasks.
  8. Pipe threading tools and benders — operate under direct instruction to prepare pipe sections to specification on a commercial job site.
  9. Work orders and material lists — read and confirm correct materials are gathered before beginning assigned pipe installation tasks.
  10. Basic mathematics for pipe measurements — apply addition, subtraction, and measurement conversions to calculate cut lengths under journeyman oversight.
Developing
Mid-level / Established
  1. Pipe system shutoff procedures — execute independently using valve keys and wrenches to isolate sections safely during repair work on multi-unit residential buildings.
  2. Copper, PVC, and steel pipe assemblies — join using soldering, brazing, cement, or threaded couplings with consistent quality across routine residential and light commercial installations.
  3. Pipe layout positions and passage holes — mark accurately using levels and rulers with minimal oversight on standard new-construction framing packages.
  4. Cutting torches, pipe threaders, and pipe benders — operate routinely to fabricate pipe sections to specification on commercial construction projects.
  5. Blueprints and building codes — review and apply to plan pipe routing and select appropriate materials for familiar installation scenarios.
  6. Underground storm and sanitary piping systems — install and extend to connect fixtures following engineered drawings on residential subdivision projects.
  7. Troubleshooting common pipe leaks and blockages — diagnose and repair using systematic inspection techniques during service calls with limited supervision.
  8. Full-scale pipe layout drawings — lay out on-site from blueprint dimensions to guide installation of supports and equipment in standard mechanical rooms.
  9. Time and task sequencing — manage personal workload across concurrent plumbing tasks to meet project milestones on mid-size commercial job sites.
  10. Customer and building occupant communication — explain repair scope and expected disruption clearly and professionally during service and maintenance visits.
Proficient
Senior / Expert IC
  1. Complex pipe system layouts for steam, water, and gas — plan and execute installation from blueprints across the full scope of large commercial or industrial projects without supervision.
  2. Non-routine pipe failures and pressure anomalies — troubleshoot using deductive and inductive reasoning to identify root causes and implement lasting repairs in occupied facilities.
  3. High-pressure steam and process piping assemblies — fabricate and install to code using welding, brazing, and specialized fittings on industrial or institutional job sites.
  4. Building codes, OSHA standards, and project specifications — interpret and apply autonomously to ensure all pipe system work meets regulatory and contractual requirements.
  5. CAD software and pipe layout tools — use to produce or review detailed pipe system drawings that coordinate with structural and mechanical trades on complex builds.
  6. Underground utility conflicts and soil conditions — assess and resolve during storm, sanitary, and water main installations to keep projects on schedule.
  7. Pipe system commissioning and pressure testing — conduct independently, analyze results, and certify system integrity before final inspection on new construction projects.
  8. Critical thinking and judgment — apply when evaluating multiple repair or installation approaches to select cost-effective, code-compliant solutions for non-standard field conditions.
  9. Operations monitoring during system startup — observe gauges, temperatures, and flow indicators to verify performance and adjust controls in newly commissioned mechanical systems.
  10. Coordination with general contractors and inspectors — lead pre-installation and inspection meetings to align plumbing scope with overall project schedule and quality standards.
Advanced
Lead / Principal / Executive
  1. Pipe system design standards and installation methodologies — develop and codify for organizational adoption, ensuring consistency and code compliance across all company projects.
  2. Apprentice and journeyman plumbers — mentor and evaluate through structured on-the-job training programs tied to apprenticeship standards and competency milestones.
  3. Project-level pipe system plans and specifications — review and approve before construction begins, integrating engineering requirements, building codes, and constructability considerations.
  4. Organizational estimating and project management processes — lead using CAD, project management software, and accounting tools to deliver accurate bids and profitable project outcomes.
  5. Complex problem-solving on high-value or high-risk installations — direct field teams through unprecedented technical challenges on industrial, healthcare, or large-scale infrastructure projects.
  6. Safety culture and compliance programs — establish and enforce across all job sites, reducing incident rates and ensuring adherence to OSHA and public safety standards.
  7. Vendor and subcontractor relationships — manage strategically to secure material quality, competitive pricing, and reliable delivery that support organizational growth objectives.
  8. Emerging piping technologies and materials — evaluate and pilot for organizational adoption, incorporating findings from engineering and technology advances into standard practice.
  9. Cross-trade coordination at the executive level — facilitate alignment between plumbing, mechanical, electrical, and structural teams to prevent conflicts and optimize construction sequencing.
  10. Organizational performance metrics for quality, productivity, and compliance — analyze using data management tools and drive continuous improvement initiatives across the plumbing division.

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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Show O*NET source anchors54 anchors · skillscrosswalk.com

O*NET enrichment · skillscrosswalk.com

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Source anchors that ground each statement

Related titles
Plumber · Plumber, Pipefitter & Steamfitter · Aircraft Hydraulic Equipment Mechanic · Aircraft Hydraulic Mechanic · Aircraft Plumbing Mechanic · Commercial Plumber · Corrosion Control Fitter · Diesel Engine Pipefitter · Drain Cleaner · Drain Technician · Dry Docks Utility Systems Repair Operator · Equipment Service Associate (ESA)
RAPIDS apprenticeships
0057 · Plumber · 0195 · Plumber, Pipefitter & Steamfitter
O*NET skills
Critical ThinkingTroubleshootingRepairingJudgment and Decision MakingMonitoringSpeakingCoordinationComplex Problem SolvingOperations MonitoringOperation and ControlTime Management
Knowledge domains
Building and ConstructionMechanicalDesignMathematicsCustomer and Personal ServiceAdministration and ManagementPublic Safety and SecurityEngineering and TechnologyPhysics
Abilities
Problem SensitivityFinger DexterityNear VisionManual DexterityDeductive ReasoningInductive ReasoningTrunk StrengthFar VisionArm-Hand SteadinessCategory Flexibility
Work styles
DependabilityAttention to DetailCautiousnessPerseveranceIntegrityStress Tolerance
Technology
Computer aided design CAD softwareWord processing softwareAnalytical or scientific softwareAccounting softwareData base user interface and query softwareElectronic mail softwareProject management softwareInternet browser softwareFacilities management softwareWeb platform development software
Tasks · seed anchors for statements
  1. Shut off steam, water, or other gases or liquids from pipe sections, using valve keys or wrenches.
  2. Install underground storm, sanitary, or water piping systems, extending piping as needed to connect fixtures and plumbing.
  3. Assemble pipe sections, tubing, or fittings, using couplings, clamps, screws, bolts, cement, plastic solvent, caulking, or soldering, brazing, or welding equipment.
  4. Locate and mark the position of pipe installations, connections, passage holes, or fixtures in structures, using measuring instruments such as rulers or levels.
  5. Cut, thread, or hammer pipes to specifications, using tools such as saws, cutting torches, pipe threaders, or pipe benders.
  6. Lay out full scale drawings of pipe systems, supports, or related equipment, according to blueprints.
  7. Plan pipe system layout, installation, or repair, according to specifications.
  8. Review blueprints, building codes, or specifications to determine work details or procedures.
CIP education codes
46.050246.050346.0599

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.