[Core] [82% incumbents] Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment and machinery.
  DWAs: Service vehicles to maintain functionality. | Lubricate equipment to allow proper functioning.

[Core] [82% incumbents] Rewire ignition systems, lights, and instrument panels.
  DWAs: Rewire electrical or electronic systems.

[Core] [82% incumbents] Test drive trucks and buses to diagnose malfunctions or to ensure that they are working properly.
  DWAs: Operate transportation equipment to demonstrate function or malfunction.

[Core] [81% incumbents] Use handtools, such as screwdrivers, pliers, wrenches, pressure gauges, or precision instruments, as well as power tools, such as pneumatic wrenches, lathes, welding equipment, or jacks and hoists.
  DWAs: Select tools, equipment, or technologies for use in operations or projects.

[Core] [81% incumbents] Raise trucks, buses, and heavy parts or equipment using hydraulic jacks or hoists.
  DWAs: Operate cranes, hoists, or other moving or lifting equipment.

[Core] [81% incumbents] Adjust and reline brakes, align wheels, tighten bolts and screws, and reassemble equipment.
  DWAs: Adjust vehicle components according to specifications.

[Core] [81% incumbents] Examine and adjust protective guards, loose bolts, and specified safety devices.
  DWAs: Adjust equipment to ensure optimal performance.

[Core] [81% incumbents] Recondition and replace parts, pistons, bearings, gears, and valves.
  DWAs: Replace worn, damaged, or defective mechanical parts. | Rebuild parts or components.

[Core] [81% incumbents] Repair or adjust seats, doors, or windows.
  DWAs: Adjust vehicle components according to specifications. | Repair non-engine automotive or vehicle components.

[Core] [81% incumbents] Dismount, mount, and repair or replace tires.
  DWAs: Install vehicle parts or accessories. | Repair tires.

[Core] [81% incumbents] Align front ends and suspension systems.
  DWAs: Align equipment or machinery.

[Core] [81% incumbents] Maintain or repair vehicles with alternative fuel systems, including biodiesel, hybrid, or compressed natural gas vehicles.
  DWAs: Service green vehicles to make repairs or maintain good working order.

[Core] [80% incumbents] Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition.
  DWAs: Inspect mechanical components of vehicles to identify problems.

[Core] [80% incumbents] Attach test instruments to equipment, and read dials and gauges to diagnose malfunctions.
  DWAs: Test mechanical equipment to ensure proper functioning.

[Core] [80% incumbents] Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers, motor analyzers, chassis charts, or pressure gauges.
  DWAs: Observe equipment in operation to detect potential problems. | Inspect mechanical components of vehicles to identify problems. | Test mechanical equipment to ensure proper functioning.

[Core] [80% incumbents] Diagnose and repair vehicle heating and cooling systems.
  DWAs: Troubleshoot equipment or systems operation problems. | Repair non-engine automotive or vehicle components.

[Core] [80% incumbents] Inspect, repair, and maintain automotive and mechanical equipment and machinery, such as pumps and compressors.
  DWAs: Inspect mechanical components of vehicles to identify problems. | Repair non-engine automotive or vehicle components.

[Core] [80% incumbents] Adjust or repair computer controlled exhaust emissions devices.
  DWAs: Adjust vehicle components according to specifications. | Service green vehicles to make repairs or maintain good working order.

[Core] [80% incumbents] Specialize in repairing and maintaining parts of the engine, such as fuel injection systems.
  DWAs: Repair defective engines or engine components.

[Core] [80% incumbents] Install or repair accessories.
  DWAs: Install vehicle parts or accessories. | Repair non-engine automotive or vehicle components.

[Core] [79% incumbents] Disassemble and overhaul internal combustion engines, pumps, generators, transmissions, clutches, and differential units.
  DWAs: Dismantle heavy equipment or machinery. | Repair defective engines or engine components.

[Core] [79% incumbents] Rebuild gas or diesel engines.
  DWAs: Repair defective engines or engine components.

[Supplemental] [79% incumbents] Measure vehicle emissions to determine whether they are within acceptable limits.
  DWAs: Measure equipment outputs.

[Supplemental] [79% incumbents] Follow green operational practices involving conservation of water or energy or reduction of solid waste.
  DWAs: Monitor resources.

[Supplemental] [79% incumbents] Operate valve-grinding machines to grind and reset valves.
  DWAs: Grind parts to required dimensions.

[Core] [78% incumbents] Inspect and verify dimensions and clearances of parts to ensure conformance to factory specifications.
  DWAs: Inspect mechanical components of vehicles to identify problems. | Measure distances or dimensions.

--- SKILLS ---
  Critical Thinking (imp:3.25 lvl:3.38) — Using logic and reasoning to identify the strengths and weaknesses of alternativ
  Speaking (imp:3.12 lvl:3.00) — Talking to others to convey information effectively.
  Active Listening (imp:3.00 lvl:3.00) — Giving full attention to what other people are saying, taking time to understand
  Monitoring (imp:3.00 lvl:3.00) — Monitoring/Assessing performance of yourself, other individuals, or organization
  Reading Comprehension (imp:2.88 lvl:2.88) — Understanding written sentences and paragraphs in work-related documents.
  Active Learning (imp:2.75 lvl:2.88) — Understanding the implications of new information for both current and future pr
  Learning Strategies (imp:2.75 lvl:2.62) — Selecting and using training/instructional methods and procedures appropriate fo
  Writing (imp:2.62 lvl:2.75) — Communicating effectively in writing as appropriate for the needs of the audienc
  Mathematics (imp:2.00 lvl:2.00) — Using mathematics to solve problems.
  Science (imp:1.75 lvl:1.25) — Using scientific rules and methods to solve problems.

--- KNOWLEDGE ---
  Mechanical (imp:4.74 lvl:6.02) — Knowledge of machines and tools, including their designs, uses, repair, and main
  Transportation (imp:3.88 lvl:4.39) — Knowledge of principles and methods for moving people or goods by air, rail, sea
  Education and Training (imp:3.54 lvl:4.19) — Knowledge of principles and methods for curriculum and training design, teaching
  English Language (imp:3.51 lvl:3.49) — Knowledge of the structure and content of the English language including the mea
  Public Safety and Security (imp:3.42 lvl:3.20) — Knowledge of relevant equipment, policies, procedures, and strategies to promote
  Mathematics (imp:3.28 lvl:3.09) — Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their appl
  Computers and Electronics (imp:3.27 lvl:3.63) — Knowledge of circuit boards, processors, chips, electronic equipment, and comput
  Administration and Management (imp:3.02 lvl:2.62) — Knowledge of business and management principles involved in strategic planning, 
  Production and Processing (imp:2.95 lvl:2.76) — Knowledge of raw materials, production processes, quality control, costs, and ot
  Customer and Personal Service (imp:2.90 lvl:2.97) — Knowledge of principles and processes for providing customer and personal servic
  Physics (imp:2.82 lvl:3.22) — Knowledge and prediction of physical principles, laws, their interrelationships,
  Engineering and Technology (imp:2.78 lvl:3.08) — Knowledge of the practical application of engineering science and technology. Th
  Chemistry (imp:2.74 lvl:3.20) — Knowledge of the chemical composition, structure, and properties of substances a
  Design (imp:2.70 lvl:2.54) — Knowledge of design techniques, tools, and principles involved in production of 
  Law and Government (imp:2.54 lvl:2.04) — Knowledge of laws, legal codes, court procedures, precedents, government regulat
  Building and Construction (imp:2.49 lvl:2.94) — Knowledge of materials, methods, and the tools involved in the construction or r
  Telecommunications (imp:2.48 lvl:1.81) — Knowledge of transmission, broadcasting, switching, control, and operation of te
  Personnel and Human Resources (imp:2.40 lvl:1.55) — Knowledge of principles and procedures for personnel recruitment, selection, tra
  Psychology (imp:2.31 lvl:2.37) — Knowledge of human behavior and performance; individual differences in ability, 
  Communications and Media (imp:2.20 lvl:1.90) — Knowledge of media production, communication, and dissemination techniques and m
  Biology (imp:2.10 lvl:2.07) — Knowledge of plant and animal organisms, their tissues, cells, functions, interd
  Geography (imp:1.99 lvl:1.43) — Knowledge of principles and methods for describing the features of land, sea, an
  Administrative (imp:1.98 lvl:1.38) — Knowledge of administrative and office procedures and systems such as word proce
  Sales and Marketing (imp:1.78 lvl:1.10) — Knowledge of principles and methods for showing, promoting, and selling products
  Economics and Accounting (imp:1.67) — Knowledge of economic and accounting principles and practices, the financial mar
  Therapy and Counseling (imp:1.67 lvl:1.08) — Knowledge of principles, methods, and procedures for diagnosis, treatment, and r
  Food Production (imp:1.61) — Knowledge of techniques and equipment for planting, growing, and harvesting food
  History and Archeology (imp:1.51) — Knowledge of historical events and their causes, indicators, and effects on civi
  Sociology and Anthropology (imp:1.40) — Knowledge of group behavior and dynamics, societal trends and influences, human 
  Fine Arts (imp:1.33) — Knowledge of the theory and techniques required to compose, produce, and perform
  Medicine and Dentistry (imp:1.29 lvl:0.48) — Knowledge of the information and techniques needed to diagnose and treat human i
  Philosophy and Theology (imp:1.29) — Knowledge of different philosophical systems and religions. This includes their 
  Foreign Language (imp:1.16) — Knowledge of the structure and content of a foreign (non-English) language inclu

--- ABILITIES ---
  Near Vision (imp:4.00 lvl:4.00) — The ability to see details at close range (within a few feet of the observer).
  Arm-Hand Steadiness (imp:3.88 lvl:3.25) — The ability to keep your hand and arm steady while moving your arm or while hold
  Manual Dexterity (imp:3.88 lvl:3.25) — The ability to quickly move your hand, your hand together with your arm, or your
  Finger Dexterity (imp:3.88 lvl:3.62) — The ability to make precisely coordinated movements of the fingers of one or bot
  Control Precision (imp:3.75 lvl:3.75) — The ability to quickly and repeatedly adjust the controls of a machine or a vehi
  Hearing Sensitivity (imp:3.75 lvl:3.88) — The ability to detect or tell the differences between sounds that vary in pitch 
  Problem Sensitivity (imp:3.62 lvl:3.25) — The ability to tell when something is wrong or is likely to go wrong. It does no
  Deductive Reasoning (imp:3.62 lvl:3.38) — The ability to apply general rules to specific problems to produce answers that 
  Multilimb Coordination (imp:3.62 lvl:3.50) — The ability to coordinate two or more limbs (for example, two arms, two legs, or
  Extent Flexibility (imp:3.50 lvl:3.88) — The ability to bend, stretch, twist, or reach with your body, arms, and/or legs.
  Information Ordering (imp:3.38 lvl:3.38) — The ability to arrange things or actions in a certain order or pattern according
  Trunk Strength (imp:3.38 lvl:3.12) — The ability to use your abdominal and lower back muscles to support part of the 
  Visualization (imp:3.25 lvl:3.75) — The ability to imagine how something will look after it is moved around or when 
  Oral Comprehension (imp:3.12 lvl:3.75) — The ability to listen to and understand information and ideas presented through 
  Oral Expression (imp:3.12 lvl:3.12) — The ability to communicate information and ideas in speaking so others will unde
  Inductive Reasoning (imp:3.12 lvl:3.38) — The ability to combine pieces of information to form general rules or conclusion
  Flexibility of Closure (imp:3.12 lvl:3.12) — The ability to identify or detect a known pattern (a figure, object, word, or so
  Depth Perception (imp:3.12 lvl:3.00) — The ability to judge which of several objects is closer or farther away from you
  Auditory Attention (imp:3.12 lvl:3.12) — The ability to focus on a single source of sound in the presence of other distra
  Perceptual Speed (imp:3.00 lvl:3.00) — The ability to quickly and accurately compare similarities and differences among
  Selective Attention (imp:3.00 lvl:3.00) — The ability to concentrate on a task over a period of time without being distrac
  Reaction Time (imp:3.00 lvl:3.00) — The ability to quickly respond (with the hand, finger, or foot) to a signal (sou
  Static Strength (imp:3.00 lvl:3.12) — The ability to exert maximum muscle force to lift, push, pull, or carry objects.
  Far Vision (imp:3.00 lvl:3.12) — The ability to see details at a distance.
  Visual Color Discrimination (imp:3.00 lvl:3.25) — The ability to match or detect differences between colors, including shades of c
  Speech Recognition (imp:3.00 lvl:2.88) — The ability to identify and understand the speech of another person.
  Written Comprehension (imp:2.88 lvl:3.12) — The ability to read and understand information and ideas presented in writing.
  Category Flexibility (imp:2.88 lvl:3.00) — The ability to generate or use different sets of rules for combining or grouping
  Time Sharing (imp:2.88 lvl:3.00) — The ability to shift back and forth between two or more activities or sources of
  Speech Clarity (imp:2.88 lvl:3.00) — The ability to speak clearly so others can understand you.
  Fluency of Ideas (imp:2.75 lvl:2.88) — The ability to come up with a number of ideas about a topic (the number of ideas
  Response Orientation (imp:2.75 lvl:2.75) — The ability to choose quickly between two or more movements in response to two o
  Stamina (imp:2.75 lvl:2.75) — The ability to exert yourself physically over long periods of time without getti
  Gross Body Equilibrium (imp:2.75 lvl:2.38) — The ability to keep or regain your body balance or stay upright when in an unsta
  Written Expression (imp:2.62 lvl:2.62) — The ability to communicate information and ideas in writing so others will under
  Originality (imp:2.62 lvl:2.75) — The ability to come up with unusual or clever ideas about a given topic or situa
  Rate Control (imp:2.62 lvl:2.25) — The ability to time your movements or the movement of a piece of equipment in an
  Sound Localization (imp:2.62 lvl:2.62) — The ability to tell the direction from which a sound originated.
  Wrist-Finger Speed (imp:2.25 lvl:2.25) — The ability to make fast, simple, repeated movements of the fingers, hands, and 
  Speed of Limb Movement (imp:2.25 lvl:1.75) — The ability to quickly move the arms and legs.
  Dynamic Strength (imp:2.25 lvl:2.25) — The ability to exert muscle force repeatedly or continuously over time. This inv
  Gross Body Coordination (imp:2.25 lvl:2.12) — The ability to coordinate the movement of your arms, legs, and torso together wh
  Memorization (imp:2.12 lvl:2.12) — The ability to remember information such as words, numbers, pictures, and proced
  Speed of Closure (imp:2.12 lvl:2.25) — The ability to quickly make sense of, combine, and organize information into mea
  Mathematical Reasoning (imp:2.00 lvl:1.75) — The ability to choose the right mathematical methods or formulas to solve a prob
  Number Facility (imp:2.00 lvl:2.12) — The ability to add, subtract, multiply, or divide quickly and correctly.
  Spatial Orientation (imp:2.00 lvl:1.75) — The ability to know your location in relation to the environment or to know wher
  Night Vision (imp:2.00 lvl:1.75) — The ability to see under low-light conditions.
  Peripheral Vision (imp:2.00 lvl:1.75) — The ability to see objects or movement of objects to one's side when the eyes ar
  Glare Sensitivity (imp:2.00 lvl:2.12) — The ability to see objects in the presence of a glare or bright lighting.
  Explosive Strength (imp:1.88 lvl:1.25) — The ability to use short bursts of muscle force to propel oneself (as in jumping
  Dynamic Flexibility (imp:1.25 lvl:0.38) — The ability to quickly and repeatedly bend, stretch, twist, or reach out with yo

--- WORK ACTIVITIES ---
  Repairing and Maintaining Mechanical Equipment (imp:4.62 lvl:4.92) — Servicing, repairing, adjusting, and testing machines, devices, moving parts, an
  Inspecting Equipment, Structures, or Materials (imp:4.39 lvl:4.33) — Inspecting equipment, structures, or materials to identify the cause of errors o
  Getting Information (imp:4.26 lvl:4.17) — Observing, receiving, and otherwise obtaining information from all relevant sour
  Identifying Objects, Actions, and Events (imp:4.26 lvl:4.19) — Identifying information by categorizing, estimating, recognizing differences or 
  Operating Vehicles, Mechanized Devices, or Equipment (imp:4.22 lvl:3.51) — Running, maneuvering, navigating, or driving vehicles or mechanized equipment, s
  Repairing and Maintaining Electronic Equipment (imp:4.11 lvl:4.27) — Servicing, repairing, calibrating, regulating, fine-tuning, or testing machines,
  Making Decisions and Solving Problems (imp:4.10 lvl:3.96) — Analyzing information and evaluating results to choose the best solution and sol
  Controlling Machines and Processes (imp:4.04 lvl:5.03) — Using either control mechanisms or direct physical activity to operate machines 
  Performing General Physical Activities (imp:4.02 lvl:4.59) — Performing general physical activities includes doing activities that require co
  Updating and Using Relevant Knowledge (imp:4.01 lvl:4.61) — Keeping up-to-date technically and applying new knowledge to your job.
  Handling and Moving Objects (imp:3.95 lvl:5.45) — Using hands and arms in handling, installing, positioning, and moving materials,
  Monitoring Processes, Materials, or Surroundings (imp:3.91 lvl:4.60) — Monitoring and reviewing information from materials, events, or the environment,
  Analyzing Data or Information (imp:3.78 lvl:3.61) — Identifying the underlying principles, reasons, or facts of information by break
  Communicating with Supervisors, Peers, or Subordinates (imp:3.70 lvl:3.44) — Providing information to supervisors, co-workers, and subordinates by telephone,
  Documenting/Recording Information (imp:3.69 lvl:3.32) — Entering, transcribing, recording, storing, or maintaining information in writte
  Working with Computers (imp:3.60 lvl:2.65) — Using computers and computer systems (including hardware and software) to progra
  Evaluating Information to Determine Compliance with Standards (imp:3.57 lvl:3.55) — Using relevant information and individual judgment to determine whether events o
  Processing Information (imp:3.54 lvl:3.91) — Compiling, coding, categorizing, calculating, tabulating, auditing, or verifying
  Organizing, Planning, and Prioritizing Work (imp:3.32 lvl:3.92) — Developing specific goals and plans to prioritize, organize, and accomplish your
  Providing Consultation and Advice to Others (imp:3.27 lvl:2.86) — Providing guidance and expert advice to management or other groups on technical,
  Estimating the Quantifiable Characteristics of Products, Events, or Information (imp:3.17 lvl:3.10) — Estimating sizes, distances, and quantities; or determining time, costs, resourc
  Thinking Creatively (imp:3.15 lvl:3.18) — Developing, designing, or creating new applications, ideas, relationships, syste
  Drafting, Laying Out, and Specifying Technical Devices, Parts, and Equipment (imp:3.14 lvl:2.63) — Providing documentation, detailed instructions, drawings, or specifications to t
  Establishing and Maintaining Interpersonal Relationships (imp:3.11 lvl:3.66) — Developing constructive and cooperative working relationships with others, and m
  Developing Objectives and Strategies (imp:3.06 lvl:3.23) — Establishing long-range objectives and specifying the strategies and actions to 
  Performing Administrative Activities (imp:2.94 lvl:1.84) — Performing day-to-day administrative tasks such as maintaining information files
  Judging the Qualities of Objects, Services, or People (imp:2.90 lvl:2.88) — Assessing the value, importance, or quality of things or people.
  Coaching and Developing Others (imp:2.89 lvl:2.90) — Identifying the developmental needs of others and coaching, mentoring, or otherw
  Interpreting the Meaning of Information for Others (imp:2.85 lvl:2.62) — Translating or explaining what information means and how it can be used.
  Training and Teaching Others (imp:2.84 lvl:2.28) — Identifying the educational needs of others, developing formal educational or tr
  Assisting and Caring for Others (imp:2.77 lvl:1.81) — Providing personal assistance, medical attention, emotional support, or other pe
  Scheduling Work and Activities (imp:2.66 lvl:2.51) — Scheduling events, programs, and activities, as well as the work of others.
  Coordinating the Work and Activities of Others (imp:2.54 lvl:2.11) — Getting members of a group to work together to accomplish tasks.
  Communicating with People Outside the Organization (imp:2.35 lvl:1.67) — Communicating with people outside the organization, representing the organizatio
  Developing and Building Teams (imp:2.30 lvl:1.39) — Encouraging and building mutual trust, respect, and cooperation among team membe
  Guiding, Directing, and Motivating Subordinates (imp:2.30 lvl:1.58) — Providing guidance and direction to subordinates, including setting performance 
  Monitoring and Controlling Resources (imp:2.26 lvl:1.77) — Monitoring and controlling resources and overseeing the spending of money.
  Resolving Conflicts and Negotiating with Others (imp:2.07 lvl:1.20) — Handling complaints, settling disputes, and resolving grievances and conflicts, 
  Selling or Influencing Others (imp:2.04 lvl:1.26) — Convincing others to buy merchandise/goods or to otherwise change their minds or
  Performing for or Working Directly with the Public (imp:1.93 lvl:1.07) — Performing for people or dealing directly with the public. This includes serving
  Staffing Organizational Units (imp:1.58 lvl:0.60) — Recruiting, interviewing, selecting, hiring, and promoting employees in an organ

--- WORK STYLES ---
  Dependability (imp:2.47) — A tendency to be reliable, responsible, and consistent in meeting work-related o
  Attention to Detail (imp:2.44) — A tendency to be detail-oriented, organized, and thorough in completing work.
  Dependability (imp:2.00) — A tendency to be reliable, responsible, and consistent in meeting work-related o
  Cautiousness (imp:1.96) — A tendency to be careful, deliberate, and risk-avoidant when making work-related
  Perseverance (imp:1.77) — A tendency to exhibit determination and resolve to perform or complete tasks in 
  Stress Tolerance (imp:1.27) — A tendency to cope and function effectively in stressful situations at work.
  Integrity (imp:1.23) — A tendency to be honest and ethical at work.
  Achievement Orientation (imp:1.12) — A tendency to establish and maintain personally challenging work-related goals, 
  Attention to Detail (imp:1.00) — A tendency to be detail-oriented, organized, and thorough in completing work.
  Intellectual Curiosity (imp:0.97) — A tendency to seek out and acquire new work-related knowledge and obtain a deep 
  Adaptability (imp:0.89) — A tendency to be open to and comfortable with change, new experiences, or ideas 
  Innovation (imp:0.84) — A tendency to be inventive, to be imaginative, and to adopt new perspectives on 
  Self-Confidence (imp:0.82) — A tendency to believe in one's work-related capabilities and ability to control 
  Initiative (imp:0.76) — A tendency to be proactive and take on extra responsibilities and tasks that may
  Self-Control (imp:0.75) — A tendency to remain calm and composed and to manage emotions effectively in res
  Cooperation (imp:0.71) — A tendency to be pleasant, helpful, and willing to assist others at work.
  Sincerity (imp:0.49) — A tendency to be genuine and sincere in interactions with others at work, withou
  Optimism (imp:0.34) — A tendency to exhibit a positive attitude and positive emotions at work, even un
  Tolerance for Ambiguity (imp:0.25) — A tendency to be comfortable with ambiguity and uncertainty at work.
  Innovation () — A tendency to be inventive, to be imaginative, and to adopt new perspectives on 
  Achievement Orientation () — A tendency to establish and maintain personally challenging work-related goals, 
  Intellectual Curiosity () — A tendency to seek out and acquire new work-related knowledge and obtain a deep 
  Tolerance for Ambiguity () — A tendency to be comfortable with ambiguity and uncertainty at work.
  Initiative () — A tendency to be proactive and take on extra responsibilities and tasks that may
  Adaptability () — A tendency to be open to and comfortable with change, new experiences, or ideas 
  Self-Confidence () — A tendency to believe in one's work-related capabilities and ability to control 
  Perseverance () — A tendency to exhibit determination and resolve to perform or complete tasks in 
  Leadership Orientation () — A tendency to lead, take charge, offer opinions, and provide direction at work.
  Humility () — A tendency to be modest and humble when interacting with others at work.
  Sincerity () — A tendency to be genuine and sincere in interactions with others at work, withou
  Empathy () — A tendency to show concern for others and be sensitive to others' needs and feel
  Cooperation () — A tendency to be pleasant, helpful, and willing to assist others at work.
  Optimism () — A tendency to exhibit a positive attitude and positive emotions at work, even un
  Social Orientation () — A tendency to seek out, enjoy, and be energized by social interaction at work.
  Cautiousness () — A tendency to be careful, deliberate, and risk-avoidant when making work-related
  Integrity () — A tendency to be honest and ethical at work.
  Stress Tolerance () — A tendency to cope and function effectively in stressful situations at work.
  Self-Control () — A tendency to remain calm and composed and to manage emotions effectively in res
  Empathy (imp:-0.03) — A tendency to show concern for others and be sensitive to others' needs and feel
  Leadership Orientation (imp:-0.07) — A tendency to lead, take charge, offer opinions, and provide direction at work.
  Humility (imp:-0.08) — A tendency to be modest and humble when interacting with others at work.
  Social Orientation (imp:-0.14) — A tendency to seek out, enjoy, and be energized by social interaction at work.

--- TRANSFERABLE SKILLS ---
  Troubleshooting (imp:4.00 lvl:3.75) — Determining causes of operating errors and deciding what to do about it.
  Repairing (imp:4.00 lvl:3.88) — Repairing machines or systems using the needed tools.
  Operations Monitoring (imp:3.50 lvl:3.25) — Watching gauges, dials, or other indicators to make sure a machine is working pr
  Equipment Maintenance (imp:3.38 lvl:3.38) — Performing routine maintenance on equipment and determining when and what kind o
  Quality Control Analysis (imp:3.25 lvl:3.25) — Conducting tests and inspections of products, services, or processes to evaluate
  Equipment Selection (imp:3.12 lvl:3.00) — Determining the kind of tools and equipment needed to do a job.
  Judgment and Decision Making (imp:3.12 lvl:3.00) — Considering the relative costs and benefits of potential actions to choose the m
  Complex Problem Solving (imp:3.00 lvl:3.00) — Identifying complex problems and reviewing related information to develop and ev
  Operation and Control (imp:3.00 lvl:3.12) — Controlling operations of equipment or systems.
  Time Management (imp:3.00 lvl:2.88) — Managing one's own time and the time of others.
  Coordination (imp:2.88 lvl:2.88) — Adjusting actions in relation to others' actions.
  Systems Analysis (imp:2.88 lvl:2.50) — Determining how a system should work and how changes in conditions, operations, 
  Social Perceptiveness (imp:2.75 lvl:2.75) — Being aware of others' reactions and understanding why they react as they do.
  Systems Evaluation (imp:2.75 lvl:2.38) — Identifying measures or indicators of system performance and the actions needed 
  Instructing (imp:2.12 lvl:2.75) — Teaching others how to do something.
  Service Orientation (imp:2.12 lvl:2.12) — Actively looking for ways to help people.
  Installation (imp:2.12 lvl:1.88) — Installing equipment, machines, wiring, or programs to meet specifications.
  Persuasion (imp:2.00 lvl:2.25) — Persuading others to change their minds or behavior.
  Negotiation (imp:2.00 lvl:2.00) — Bringing others together and trying to reconcile differences.
  Management of Personnel Resources (imp:2.00 lvl:2.00) — Motivating, developing, and directing people as they work, identifying the best 
  Operations Analysis (imp:1.88 lvl:1.12) — Analyzing needs and product requirements to create a design.
  Technology Design (imp:1.88 lvl:0.88) — Generating or adapting equipment and technology to serve user needs.
  Programming (imp:1.88 lvl:1.12) — Writing computer programs for various purposes.
  Management of Financial Resources (imp:1.88 lvl:0.88) — Determining how money will be spent to get the work done, and accounting for the
  Management of Material Resources (imp:1.88 lvl:0.88) — Obtaining and seeing to the appropriate use of equipment, facilities, and materi

--- NATIONAL WAGES ---
  total_employment : 289,960
  annual_median    : $61,770
  annual_pct10     : $44,530
  annual_pct25     : $50,540
  annual_pct75     : $75,470
  annual_pct90     : $88,740
  annual_mean      : $64,320
  hourly_median    : $29.70

--- GEOGRAPHIC DISPERSION ---
  highest_state    : Hawaii ($80,080)
  lowest_state     : Puerto Rico ($40,110)
  dispersion_ratio : 1.997x

--- TOP STATES BY WAGE (53 total) ---
  Transportation and Warehousing           emp:   86,430  median: $  60,900
  Wholesale Trade                          emp:   40,720  median: $  63,070
  Other Services (except Public Administration) emp:   33,450  median: $  60,750
  Federal, State, and Local Government, excluding State and Local Government Schools and Hospitals and the U.S. Postal Service (OEWS Designation) emp:   33,130  median: $  69,960
  Administrative and Support and Waste Management and Remediation Services emp:   20,240  median: $  60,880
  Real Estate and Rental and Leasing       emp:   19,030  median: $  60,290
  Manufacturing                            emp:   15,390  median: $  62,970
  Construction                             emp:   10,330  median: $  62,720
  Educational Services                     emp:   10,290  median: $  55,100
  Retail Trade                             emp:    9,960  median: $  58,060

--- TOP INDUSTRIES BY EMPLOYMENT (19 total) ---
  Transportation and Warehousing           emp:   86,430  median: $  60,900
  Wholesale Trade                          emp:   40,720  median: $  63,070
  Other Services (except Public Administration) emp:   33,450  median: $  60,750
  Federal, State, and Local Government, excluding State and Local Government Schools and Hospitals and the U.S. Postal Service (OEWS Designation) emp:   33,130  median: $  69,960
  Administrative and Support and Waste Management and Remediation Services emp:   20,240  median: $  60,880
  Real Estate and Rental and Leasing       emp:   19,030  median: $  60,290
  Manufacturing                            emp:   15,390  median: $  62,970
  Construction                             emp:   10,330  median: $  62,720
  Educational Services                     emp:   10,290  median: $  55,100
  Retail Trade                             emp:    9,960  median: $  58,060

exact_match_status : no_exact_match
matched_title      : N/A
match_score        : 0.0000
wikidata_qid       : N/A
word_count         : 0
wikipedia_url      : N/A
license            : CC BY-SA 4.0
fetched_at         : 2026-06-02T22:55:02.050862Z

--- SEMANTIC NEIGHBORS (5) ---

  Title: Scania AB (similarity: 0.2258)
  URL: https://en.wikipedia.org/wiki/Scania_AB
  QID: Q219960
  Extract: Scania AB, stylised SCANIA, is a Swedish manufacturer of heavy trucks, buses and engines headquartered in Södertälje, Sweden. The company develops commercial vehicles for long-distance haulage, construction and regional distribution, as well as engines and power solutions for marine and industrial a

  Title: Bus (similarity: 0.1071)
  URL: https://en.wikipedia.org/wiki/Bus
  QID: Q5638
  Extract: A bus is a motor vehicle that carries significantly more passengers than an average car or van, but fewer than the average rail transport. It is most commonly used in public transport, but is also in use for charter purposes, or through private ownership. Although the average bus carries between 30 

  Title: Tesla, Inc. (similarity: 0.2500)
  URL: https://en.wikipedia.org/wiki/Tesla%2C_Inc.
  QID: Q478214
  Extract: Tesla, Inc. is an American multinational automotive and clean energy company. Headquartered in Austin, Texas, it designs, manufactures, and sells battery electric vehicles (BEVs), stationary battery energy storage devices from home to grid-scale, solar panels and solar shingles, and related products

  Title: Renault 5 (similarity: 0.1290)
  URL: https://en.wikipedia.org/wiki/Renault_5
  QID: Q504143
  Extract: The Renault 5 is a supermini car produced by the French manufacturer Renault from 1972 to 1996 over two generations. It is a hatchback with either three or five doors and seating for five passengers. The first generation, which was made from 1972 to 1985, has a front mid-engine, front-wheel-drive la

  Title: Infiniti (similarity: 0.1311)
  URL: https://en.wikipedia.org/wiki/Infiniti
  QID: Q29714
  Extract: Infiniti  is the luxury car division of the Japanese automaker Nissan. The brand began on November 8, 1989, initially in North America. The marketing network for Infiniti vehicles included dealers in over 50 countries in the 2010s. As of 2020, there were 25 markets served by new car dealers, primari

model_pass1          : claude-sonnet-4-20250514
model_pass2          : claude-haiku-4-5-20251001
inference_confidence : high
confidence_notes     : High confidence due to comprehensive O*NET data including detailed tasks, skills, and work activities. BLS wage data provides reliable market intelligence. The occupation is well-defined with clear boundaries and established career pathways.
inferred_at          : 2026-06-04T00:26:44.731900+00:00
tokens_input         : 4,728
tokens_output        : 4,218
cost_usd             : $0.045844
wikipedia_used       : False
wikipedia_title      : None
wikipedia_note       : No exact Wikipedia match found for this occupation. The semantic neighbors include vehicle manufacturers like Scania AB and Tesla, Inc., and general vehicle articles, but none specifically cover the mechanics profession.

--- PROSE FIELDS ---

ROLE SUMMARY:
Bus and truck mechanics and diesel engine specialists diagnose, repair, and maintain heavy-duty vehicles and diesel engines across transportation, construction, and commercial industries. These skilled technicians combine mechanical expertise with advanced diagnostic tools to keep critical transportation infrastructure operational. They work on everything from city buses and commercial trucks to marine diesel engines and heavy equipment.

DAY IN THE LIFE:
Technicians start by performing diagnostic tests using computerized equipment and hand tools to identify mechanical issues in buses, trucks, or diesel engines. They conduct routine maintenance tasks like oil changes, brake adjustments, and equipment lubrication to prevent breakdowns. When repairs are needed, they dismantle engines, replace worn components like pistons and bearings, and rewire electrical systems including lights and ignition systems. They test drive vehicles after repairs to ensure proper functionality and adjust protective guards and safety devices to meet specifications. Documentation of work performed and parts used is maintained using shop management software.

WHO THRIVES:
Successful mechanics possess strong problem-solving abilities and mechanical aptitude, with the patience to methodically diagnose complex engine problems. They have excellent manual dexterity and physical stamina for working with heavy components and tools in various positions. Individuals who thrive tend to be detail-oriented and safety-conscious, as improper repairs can have serious consequences for vehicle operators and the public. The role suits those who enjoy working independently while also collaborating with team members and communicating technical issues to supervisors and customers.

CAREER ENTRY:
Most positions require completion of a post-secondary certificate program in diesel technology, automotive technology, or heavy equipment repair, which 39.5% of workers hold according to education distribution data. High school graduates (36.9%) can enter through apprenticeships or on-the-job training programs offered by employers. Some positions prefer candidates with additional certifications from manufacturers like Caterpillar, Cummins, or other diesel engine companies.

CAREER TRAJECTORY:
Entry-level technicians typically advance to senior mechanic roles with specialized expertise in particular vehicle types or engine systems. Experienced mechanics can become shop supervisors, service managers, or start their own repair businesses. Some pursue manufacturer training to become certified specialists for specific brands, while others transition into related roles like mobile heavy equipment mechanics or move into sales of parts and equipment.

MARKET INTELLIGENCE:
The occupation employs 289,960 workers nationwide with a median annual wage of $61,770 according to BLS OEWS May 2025 data. Wages range from $44,530 at the 10th percentile to $88,740 at the 90th percentile, with geographic variation from $40,110 in Puerto Rico to $80,080 in Hawaii. The largest employment sectors are Transportation and Warehousing (86,430 jobs), Wholesale Trade (40,720 jobs), and Other Services (33,450 jobs). Demand remains steady due to the essential nature of commercial transportation and the ongoing need for maintenance of aging vehicle fleets. The growth of e-commerce and logistics sectors supports continued employment opportunities.

AUTOMATION OUTLOOK:
The hands-on nature of mechanical repair work provides moderate protection from automation, though diagnostic technologies continue advancing. While computerized diagnostic tools are becoming more sophisticated, the physical manipulation of heavy components and complex problem-solving in varied repair scenarios still require human expertise and adaptability.

--- REASONED EDGES ---
  [skill_overlap] Mobile Heavy Equipment Mechanics, Except Engines (49-3042.00) — confidence:high
    reasoning: Both roles share core mechanical repair skills, troubleshooting abilities, and work with heavy equipment using similar tools and diagnostic techniques.
    data: Mechanical knowledge importance 4.7
    data: Repairing and Maintaining Mechanical Equipment activity importance 4.6
    data: Troubleshooting skill importance 4.0
  [skill_overlap] Automotive Service Technicians and Mechanics (49-3023.00) — confidence:high
    reasoning: Shared diagnostic and repair skills for automotive systems, though bus/truck mechanics work with larger, more complex commercial vehicles.
    data: Critical Thinking skill importance 3.2
    data: Operations Monitoring skill importance 3.5
    data: Equipment Maintenance skill importance 3.4
  [task_similarity] Rail Car Repairers (49-3043.00) — confidence:medium
    reasoning: Both perform heavy vehicle maintenance, brake adjustments, and electrical system repairs on transportation equipment.
    data: Adjust and reline brakes task
    data: Rewire ignition systems task
    data: Transportation knowledge importance 3.9
  [knowledge_overlap] Motorboat Mechanics and Service Technicians (49-3051.00) — confidence:high
    reasoning: Occupation description specifically includes mechanics working with marine diesel engines, creating direct overlap.
    data: Occupation includes marine diesel engines
    data: Mechanical knowledge level 6.0
    data: Diesel engine repair tasks
  [riasec_cluster] Farm Equipment Mechanics and Service Technicians (49-3041.00) — confidence:high
    reasoning: Both are Realistic-dominant occupations requiring mechanical aptitude, hands-on problem solving, and equipment repair expertise.
    data: RIASEC R:7.00 dominance
    data: Manual Dexterity ability importance 3.9
    data: Problem Sensitivity ability importance 3.6

--- NORMALIZER SIGNALS ---
  match_keywords   : ['diesel mechanic', 'truck mechanic', 'bus mechanic', 'diesel engine specialist', 'heavy vehicle mechanic', 'commercial vehicle technician', 'diesel technician', 'transportation mechanic']
  exclude_keywords : ['automotive mechanic', 'car mechanic', 'motorcycle mechanic', 'aircraft mechanic', 'small engine mechanic']
  title_patterns   : ['*diesel*mechanic*', '*truck*mechanic*', '*bus*mechanic*', '*diesel*specialist*', '*diesel*technician*']
  common_variations: ['Diesel Engine Mechanic', 'Bus Mechanic', 'Truck Mechanic', 'Diesel Technician', 'Heavy Duty Mechanic', 'Commercial Vehicle Mechanic', 'Transportation Equipment Mechanic', 'Diesel Engine Specialist']

total_terms    : 40
top_words      : ['equipment', 'tendency', 'others', 'repair', 'vehicle', 'vehicles', 'components', 'mechanical', 'problems', 'principles', 'engine', 'control', 'includes', 'objects', 'buses', 'tools', 'engines', 'ideas', 'adjust', 'resources']
source_layers  : onet_tasks | onet_dimensions | dwas | wikipedia | inference

TERM                    COUNT     FREQ  DOMINANT SOURCE      SOURCE BREAKDOWN
──────────────────────────────────────────────────────────────────────────────────────────
equipment                  48  0.01647  onet_dimensions      onet_dimensions:48%  dwas:25%  onet_tasks:15%
tendency                   42  0.01441  onet_dimensions      onet_dimensions:100%
others                     39  0.01338  onet_dimensions      onet_dimensions:97%  inference:3%
repair                     22  0.00755  dwas                 dwas:36%  onet_tasks:32%  inference:23%
vehicle                    19  0.00652  dwas                 dwas:47%  inference:26%  onet_tasks:11%
vehicles                   18  0.00618  dwas                 dwas:39%  onet_dimensions:22%  wikipedia:17%
components                 18  0.00618  dwas                 dwas:83%  inference:17%
mechanical                 17  0.00583  dwas                 dwas:41%  onet_dimensions:29%  inference:24%
problems                   16  0.00549  onet_dimensions      onet_dimensions:56%  dwas:38%  inference:6%
principles                 16  0.00549  onet_dimensions      onet_dimensions:100%
engine                     14  0.00480  dwas                 dwas:50%  inference:29%  wikipedia:14%
control                    12  0.00412  onet_dimensions      onet_dimensions:100%
includes                   12  0.00412  onet_dimensions      onet_dimensions:100%
objects                    12  0.00412  onet_dimensions      onet_dimensions:100%
buses                      11  0.00378  wikipedia            wikipedia:64%  onet_tasks:18%  inference:18%
tools                      11  0.00378  onet_dimensions      onet_dimensions:45%  inference:36%  onet_tasks:9%
engines                    11  0.00378  inference            inference:36%  dwas:27%  onet_tasks:18%
ideas                      11  0.00378  onet_dimensions      onet_dimensions:100%
adjust                     10  0.00343  onet_tasks           onet_tasks:40%  dwas:40%  onet_dimensions:10%
resources                  10  0.00343  onet_dimensions      onet_dimensions:90%  dwas:10%
materials                  10  0.00343  onet_dimensions      onet_dimensions:100%
techniques                 10  0.00343  onet_dimensions      onet_dimensions:100%
body                       10  0.00343  onet_dimensions      onet_dimensions:100%
working                     9  0.00309  onet_dimensions      onet_dimensions:44%  dwas:22%  inference:22%
heavy                       9  0.00309  inference            inference:67%  onet_tasks:11%  dwas:11%
devices                     9  0.00309  onet_dimensions      onet_dimensions:56%  onet_tasks:22%  wikipedia:11%
problem                     9  0.00309  onet_dimensions      onet_dimensions:78%  inference:22%
services                    9  0.00309  onet_dimensions      onet_dimensions:67%  wikipedia:22%  inference:11%
quickly                     9  0.00309  onet_dimensions      onet_dimensions:100%
performing                  9  0.00309  onet_dimensions      onet_dimensions:89%  inference:11%
activities                  9  0.00309  onet_dimensions      onet_dimensions:100%
orientation                 9  0.00309  onet_dimensions      onet_dimensions:100%
inspect                     8  0.00275  onet_tasks           onet_tasks:50%  dwas:50%
machines                    8  0.00275  onet_dimensions      onet_dimensions:88%  onet_tasks:12%
monitoring                  8  0.00275  onet_dimensions      onet_dimensions:100%
performance                 8  0.00275  onet_dimensions      onet_dimensions:88%  dwas:12%
procedures                  8  0.00275  onet_dimensions      onet_dimensions:100%
needs                       8  0.00275  onet_dimensions      onet_dimensions:100%
rules                       8  0.00275  onet_dimensions      onet_dimensions:100%
moving                      8  0.00275  onet_dimensions      onet_dimensions:88%  dwas:12%