[Core] [47% incumbents] Drill bolt holes into roofs at specified distances from ribs or adjacent bolts.
  DWAs: Drill holes in earth or rock.

[Core] [47% incumbents] Pull down loose rock that cannot be supported.
  DWAs: Break up rock, asphalt, or concrete.

[Core] [47% incumbents] Position bolting machines, and insert drill bits into chucks.
  DWAs: Position construction or extraction equipment. | Install equipment attachments or components.

[Core] [47% incumbents] Perform safety checks on equipment before operating.
  DWAs: Inspect equipment or tools to be used in construction or excavation.

[Core] [47% incumbents] Perform tests to determine if methane gas is present.
  DWAs: Test air quality at work sites.

[Core] [47% incumbents] Force bolts into holes, using hydraulic mechanisms of self-propelled bolting machines.
  DWAs: Install safety or support equipment.

[Core] [47% incumbents] Perform ventilation tasks, such as hanging ventilation curtains and tubes.
  DWAs: Install safety or support equipment.

[Core] [47% incumbents] Dust rocks after bolting.
  DWAs: Operate mining equipment.

[Core] [47% incumbents] Drill test holes and test bolts for specified tension, using torque wrenches.
  DWAs: Inspect completed work to ensure proper installation.

[Core] [47% incumbents] Position safety jacks to support underground mine roofs until bolts can be installed.
  DWAs: Position safety or support equipment.

[Core] [47% incumbents] Remove drill bits from chucks after drilling holes, and insert bolts into chucks.
  DWAs: Install equipment attachments or components.

[Core] [46% incumbents] Rotate chucks to turn bolts and open expansion heads against rock formations.
  DWAs: Install safety or support equipment.

[Core] [46% incumbents] Tighten ends of anchored truss bolts, using turnbuckles.
  DWAs: Assemble temporary equipment or structures.

[Core] [45% incumbents] Install various types of bolts, including truss, glue, and resin bolts, traversing entire ceiling spans.
  DWAs: Install metal structural components.

[EMERGING:New] Check roof or ribs for hazardous conditions.

[EMERGING:New] Clean equipment, such as dust collectors.

--- SKILLS ---
  Critical Thinking (imp:3.38 lvl:3.00) — Using logic and reasoning to identify the strengths and weaknesses of alternativ
  Monitoring (imp:3.25 lvl:3.12) — Monitoring/Assessing performance of yourself, other individuals, or organization
  Active Listening (imp:3.12 lvl:2.88) — Giving full attention to what other people are saying, taking time to understand
  Speaking (imp:3.00 lvl:2.25) — Talking to others to convey information effectively.
  Active Learning (imp:2.88 lvl:2.88) — Understanding the implications of new information for both current and future pr
  Reading Comprehension (imp:2.38 lvl:2.25) — Understanding written sentences and paragraphs in work-related documents.
  Learning Strategies (imp:2.25 lvl:2.50) — Selecting and using training/instructional methods and procedures appropriate fo
  Writing (imp:2.12 lvl:2.25) — Communicating effectively in writing as appropriate for the needs of the audienc
  Mathematics (imp:2.12 lvl:1.75) — Using mathematics to solve problems.
  Science (imp:1.50 lvl:0.75) — Using scientific rules and methods to solve problems.

--- KNOWLEDGE ---
  Production and Processing (imp:3.69 lvl:3.79) — Knowledge of raw materials, production processes, quality control, costs, and ot
  Education and Training (imp:3.52 lvl:3.68) — Knowledge of principles and methods for curriculum and training design, teaching
  Mechanical (imp:3.45 lvl:3.95) — Knowledge of machines and tools, including their designs, uses, repair, and main
  Public Safety and Security (imp:3.45 lvl:3.51) — Knowledge of relevant equipment, policies, procedures, and strategies to promote
  Administration and Management (imp:2.95 lvl:2.09) — Knowledge of business and management principles involved in strategic planning, 
  Law and Government (imp:2.95 lvl:3.14) — Knowledge of laws, legal codes, court procedures, precedents, government regulat
  English Language (imp:2.63 lvl:2.41) — Knowledge of the structure and content of the English language including the mea
  Customer and Personal Service (imp:2.52 lvl:2.08) — Knowledge of principles and processes for providing customer and personal servic
  Personnel and Human Resources (imp:2.51 lvl:1.41) — Knowledge of principles and procedures for personnel recruitment, selection, tra
  Transportation (imp:2.48 lvl:2.10) — Knowledge of principles and methods for moving people or goods by air, rail, sea
  Engineering and Technology (imp:2.46 lvl:2.53) — Knowledge of the practical application of engineering science and technology. Th
  Design (imp:2.28 lvl:2.25) — Knowledge of design techniques, tools, and principles involved in production of 
  Mathematics (imp:2.19 lvl:1.69) — Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their appl
  Sales and Marketing (imp:2.17 lvl:1.75) — Knowledge of principles and methods for showing, promoting, and selling products
  Computers and Electronics (imp:2.08 lvl:1.99) — Knowledge of circuit boards, processors, chips, electronic equipment, and comput
  Building and Construction (imp:2.02 lvl:1.64) — Knowledge of materials, methods, and the tools involved in the construction or r
  Geography (imp:1.95 lvl:1.76) — Knowledge of principles and methods for describing the features of land, sea, an
  Telecommunications (imp:1.86 lvl:1.08) — Knowledge of transmission, broadcasting, switching, control, and operation of te
  Administrative (imp:1.85 lvl:1.65) — Knowledge of administrative and office procedures and systems such as word proce
  Chemistry (imp:1.79 lvl:1.53) — Knowledge of the chemical composition, structure, and properties of substances a
  Physics (imp:1.72 lvl:1.56) — Knowledge and prediction of physical principles, laws, their interrelationships,
  Communications and Media (imp:1.65 lvl:1.39) — Knowledge of media production, communication, and dissemination techniques and m
  Economics and Accounting (imp:1.62 lvl:1.24) — Knowledge of economic and accounting principles and practices, the financial mar
  Psychology (imp:1.59 lvl:1.03) — Knowledge of human behavior and performance; individual differences in ability, 
  Medicine and Dentistry (imp:1.37 lvl:0.82) — Knowledge of the information and techniques needed to diagnose and treat human i
  Therapy and Counseling (imp:1.36 lvl:0.80) — Knowledge of principles, methods, and procedures for diagnosis, treatment, and r
  Biology (imp:1.27) — Knowledge of plant and animal organisms, their tissues, cells, functions, interd
  Sociology and Anthropology (imp:1.18) — Knowledge of group behavior and dynamics, societal trends and influences, human 
  Foreign Language (imp:1.18) — Knowledge of the structure and content of a foreign (non-English) language inclu
  Food Production (imp:1.09) — Knowledge of techniques and equipment for planting, growing, and harvesting food
  History and Archeology (imp:1.08) — Knowledge of historical events and their causes, indicators, and effects on civi
  Philosophy and Theology (imp:1.03) — Knowledge of different philosophical systems and religions. This includes their 
  Fine Arts (imp:1.00) — Knowledge of the theory and techniques required to compose, produce, and perform

--- ABILITIES ---
  Control Precision (imp:4.12 lvl:4.00) — The ability to quickly and repeatedly adjust the controls of a machine or a vehi
  Arm-Hand Steadiness (imp:4.00 lvl:3.12) — The ability to keep your hand and arm steady while moving your arm or while hold
  Manual Dexterity (imp:3.88 lvl:3.75) — The ability to quickly move your hand, your hand together with your arm, or your
  Extent Flexibility (imp:3.88 lvl:4.00) — The ability to bend, stretch, twist, or reach with your body, arms, and/or legs.
  Problem Sensitivity (imp:3.75 lvl:3.38) — The ability to tell when something is wrong or is likely to go wrong. It does no
  Multilimb Coordination (imp:3.75 lvl:3.88) — The ability to coordinate two or more limbs (for example, two arms, two legs, or
  Reaction Time (imp:3.75 lvl:3.88) — The ability to quickly respond (with the hand, finger, or foot) to a signal (sou
  Near Vision (imp:3.75 lvl:3.12) — The ability to see details at close range (within a few feet of the observer).
  Depth Perception (imp:3.75 lvl:3.38) — The ability to judge which of several objects is closer or farther away from you
  Information Ordering (imp:3.62 lvl:3.25) — The ability to arrange things or actions in a certain order or pattern according
  Static Strength (imp:3.62 lvl:3.75) — The ability to exert maximum muscle force to lift, push, pull, or carry objects.
  Selective Attention (imp:3.50 lvl:3.25) — The ability to concentrate on a task over a period of time without being distrac
  Response Orientation (imp:3.38 lvl:3.38) — The ability to choose quickly between two or more movements in response to two o
  Rate Control (imp:3.25 lvl:3.12) — The ability to time your movements or the movement of a piece of equipment in an
  Trunk Strength (imp:3.25 lvl:3.62) — The ability to use your abdominal and lower back muscles to support part of the 
  Stamina (imp:3.12 lvl:3.12) — The ability to exert yourself physically over long periods of time without getti
  Gross Body Equilibrium (imp:3.12 lvl:3.00) — The ability to keep or regain your body balance or stay upright when in an unsta
  Far Vision (imp:3.12 lvl:3.12) — The ability to see details at a distance.
  Speech Recognition (imp:3.12 lvl:3.00) — The ability to identify and understand the speech of another person.
  Oral Comprehension (imp:3.00 lvl:3.38) — The ability to listen to and understand information and ideas presented through 
  Oral Expression (imp:3.00 lvl:3.00) — The ability to communicate information and ideas in speaking so others will unde
  Deductive Reasoning (imp:3.00 lvl:3.00) — The ability to apply general rules to specific problems to produce answers that 
  Visualization (imp:3.00 lvl:3.00) — The ability to imagine how something will look after it is moved around or when 
  Time Sharing (imp:3.00 lvl:2.88) — The ability to shift back and forth between two or more activities or sources of
  Finger Dexterity (imp:3.00 lvl:3.12) — The ability to make precisely coordinated movements of the fingers of one or bot
  Hearing Sensitivity (imp:3.00 lvl:3.00) — The ability to detect or tell the differences between sounds that vary in pitch 
  Auditory Attention (imp:3.00 lvl:3.38) — The ability to focus on a single source of sound in the presence of other distra
  Speech Clarity (imp:3.00 lvl:3.00) — The ability to speak clearly so others can understand you.
  Inductive Reasoning (imp:2.88 lvl:2.88) — The ability to combine pieces of information to form general rules or conclusion
  Category Flexibility (imp:2.88 lvl:2.50) — The ability to generate or use different sets of rules for combining or grouping
  Flexibility of Closure (imp:2.88 lvl:2.50) — The ability to identify or detect a known pattern (a figure, object, word, or so
  Spatial Orientation (imp:2.88 lvl:2.75) — The ability to know your location in relation to the environment or to know wher
  Wrist-Finger Speed (imp:2.88 lvl:2.75) — The ability to make fast, simple, repeated movements of the fingers, hands, and 
  Dynamic Strength (imp:2.88 lvl:3.38) — The ability to exert muscle force repeatedly or continuously over time. This inv
  Gross Body Coordination (imp:2.88 lvl:2.75) — The ability to coordinate the movement of your arms, legs, and torso together wh
  Perceptual Speed (imp:2.75 lvl:2.50) — The ability to quickly and accurately compare similarities and differences among
  Visual Color Discrimination (imp:2.75 lvl:2.38) — The ability to match or detect differences between colors, including shades of c
  Glare Sensitivity (imp:2.75 lvl:2.75) — The ability to see objects in the presence of a glare or bright lighting.
  Written Comprehension (imp:2.62 lvl:2.12) — The ability to read and understand information and ideas presented in writing.
  Peripheral Vision (imp:2.62 lvl:2.12) — The ability to see objects or movement of objects to one's side when the eyes ar
  Sound Localization (imp:2.62 lvl:2.50) — The ability to tell the direction from which a sound originated.
  Night Vision (imp:2.50 lvl:2.50) — The ability to see under low-light conditions.
  Speed of Limb Movement (imp:2.38 lvl:2.50) — The ability to quickly move the arms and legs.
  Fluency of Ideas (imp:2.25 lvl:2.12) — The ability to come up with a number of ideas about a topic (the number of ideas
  Written Expression (imp:2.12 lvl:2.25) — The ability to communicate information and ideas in writing so others will under
  Originality (imp:2.12 lvl:2.12) — The ability to come up with unusual or clever ideas about a given topic or situa
  Memorization (imp:2.12 lvl:2.12) — The ability to remember information such as words, numbers, pictures, and proced
  Explosive Strength (imp:2.12 lvl:1.62) — The ability to use short bursts of muscle force to propel oneself (as in jumping
  Mathematical Reasoning (imp:2.00 lvl:1.25) — The ability to choose the right mathematical methods or formulas to solve a prob
  Number Facility (imp:2.00 lvl:1.88) — The ability to add, subtract, multiply, or divide quickly and correctly.
  Speed of Closure (imp:2.00 lvl:2.00) — The ability to quickly make sense of, combine, and organize information into mea
  Dynamic Flexibility (imp:1.88 lvl:1.12) — The ability to quickly and repeatedly bend, stretch, twist, or reach out with yo

--- WORK ACTIVITIES ---
  Inspecting Equipment, Structures, or Materials (imp:4.53 lvl:4.50) — Inspecting equipment, structures, or materials to identify the cause of errors o
  Operating Vehicles, Mechanized Devices, or Equipment (imp:4.42 lvl:4.94) — Running, maneuvering, navigating, or driving vehicles or mechanized equipment, s
  Controlling Machines and Processes (imp:4.40 lvl:5.41) — Using either control mechanisms or direct physical activity to operate machines 
  Monitoring Processes, Materials, or Surroundings (imp:4.35 lvl:5.46) — Monitoring and reviewing information from materials, events, or the environment,
  Identifying Objects, Actions, and Events (imp:4.22 lvl:4.72) — Identifying information by categorizing, estimating, recognizing differences or 
  Repairing and Maintaining Mechanical Equipment (imp:4.22 lvl:5.16) — Servicing, repairing, adjusting, and testing machines, devices, moving parts, an
  Handling and Moving Objects (imp:4.05 lvl:5.29) — Using hands and arms in handling, installing, positioning, and moving materials,
  Getting Information (imp:4.04 lvl:3.39) — Observing, receiving, and otherwise obtaining information from all relevant sour
  Communicating with Supervisors, Peers, or Subordinates (imp:3.90 lvl:4.87) — Providing information to supervisors, co-workers, and subordinates by telephone,
  Training and Teaching Others (imp:3.80 lvl:4.78) — Identifying the educational needs of others, developing formal educational or tr
  Making Decisions and Solving Problems (imp:3.73 lvl:4.67) — Analyzing information and evaluating results to choose the best solution and sol
  Performing General Physical Activities (imp:3.56 lvl:4.86) — Performing general physical activities includes doing activities that require co
  Repairing and Maintaining Electronic Equipment (imp:3.51 lvl:4.30) — Servicing, repairing, calibrating, regulating, fine-tuning, or testing machines,
  Updating and Using Relevant Knowledge (imp:3.49 lvl:4.29) — Keeping up-to-date technically and applying new knowledge to your job.
  Evaluating Information to Determine Compliance with Standards (imp:3.46 lvl:4.36) — Using relevant information and individual judgment to determine whether events o
  Coordinating the Work and Activities of Others (imp:3.31 lvl:4.31) — Getting members of a group to work together to accomplish tasks.
  Processing Information (imp:3.30 lvl:3.95) — Compiling, coding, categorizing, calculating, tabulating, auditing, or verifying
  Organizing, Planning, and Prioritizing Work (imp:3.19 lvl:3.49) — Developing specific goals and plans to prioritize, organize, and accomplish your
  Interpreting the Meaning of Information for Others (imp:3.16 lvl:3.44) — Translating or explaining what information means and how it can be used.
  Guiding, Directing, and Motivating Subordinates (imp:3.07 lvl:3.30) — Providing guidance and direction to subordinates, including setting performance 
  Judging the Qualities of Objects, Services, or People (imp:3.05 lvl:3.63) — Assessing the value, importance, or quality of things or people.
  Assisting and Caring for Others (imp:3.04 lvl:3.39) — Providing personal assistance, medical attention, emotional support, or other pe
  Coaching and Developing Others (imp:2.90 lvl:2.69) — Identifying the developmental needs of others and coaching, mentoring, or otherw
  Estimating the Quantifiable Characteristics of Products, Events, or Information (imp:2.84 lvl:3.28) — Estimating sizes, distances, and quantities; or determining time, costs, resourc
  Documenting/Recording Information (imp:2.80 lvl:2.91) — Entering, transcribing, recording, storing, or maintaining information in writte
  Providing Consultation and Advice to Others (imp:2.71 lvl:3.01) — Providing guidance and expert advice to management or other groups on technical,
  Monitoring and Controlling Resources (imp:2.66 lvl:2.94) — Monitoring and controlling resources and overseeing the spending of money.
  Developing and Building Teams (imp:2.62 lvl:2.62) — Encouraging and building mutual trust, respect, and cooperation among team membe
  Developing Objectives and Strategies (imp:2.56 lvl:2.51) — Establishing long-range objectives and specifying the strategies and actions to 
  Analyzing Data or Information (imp:2.53 lvl:2.47) — Identifying the underlying principles, reasons, or facts of information by break
  Scheduling Work and Activities (imp:2.52 lvl:2.68) — Scheduling events, programs, and activities, as well as the work of others.
  Thinking Creatively (imp:2.37 lvl:2.19) — Developing, designing, or creating new applications, ideas, relationships, syste
  Drafting, Laying Out, and Specifying Technical Devices, Parts, and Equipment (imp:2.35 lvl:2.49) — Providing documentation, detailed instructions, drawings, or specifications to t
  Resolving Conflicts and Negotiating with Others (imp:2.07 lvl:2.04) — Handling complaints, settling disputes, and resolving grievances and conflicts, 
  Establishing and Maintaining Interpersonal Relationships (imp:1.98 lvl:1.91) — Developing constructive and cooperative working relationships with others, and m
  Communicating with People Outside the Organization (imp:1.77 lvl:1.27) — Communicating with people outside the organization, representing the organizatio
  Selling or Influencing Others (imp:1.48 lvl:0.99) — Convincing others to buy merchandise/goods or to otherwise change their minds or
  Working with Computers (imp:1.42) — Using computers and computer systems (including hardware and software) to progra
  Staffing Organizational Units (imp:1.36) — Recruiting, interviewing, selecting, hiring, and promoting employees in an organ
  Performing Administrative Activities (imp:1.25) — Performing day-to-day administrative tasks such as maintaining information files
  Performing for or Working Directly with the Public (imp:1.08) — Performing for people or dealing directly with the public. This includes serving

--- WORK STYLES ---
  Dependability (imp:4.00) — A tendency to be reliable, responsible, and consistent in meeting work-related o
  Attention to Detail (imp:3.00) — A tendency to be detail-oriented, organized, and thorough in completing work.
  Dependability (imp:2.65) — A tendency to be reliable, responsible, and consistent in meeting work-related o
  Cautiousness (imp:2.39) — A tendency to be careful, deliberate, and risk-avoidant when making work-related
  Attention to Detail (imp:2.22) — A tendency to be detail-oriented, organized, and thorough in completing work.
  Stress Tolerance (imp:2.10) — A tendency to cope and function effectively in stressful situations at work.
  Cautiousness (imp:2.00) — 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 
  Self-Control (imp:1.56) — A tendency to remain calm and composed and to manage emotions effectively in res
  Integrity (imp:1.34) — A tendency to be honest and ethical at work.
  Stress Tolerance (imp:1.00) — A tendency to cope and function effectively in stressful situations at work.
  Achievement Orientation (imp:0.82) — A tendency to establish and maintain personally challenging work-related goals, 
  Self-Confidence (imp:0.80) — A tendency to believe in one's work-related capabilities and ability to control 
  Initiative (imp:0.20) — A tendency to be proactive and take on extra responsibilities and tasks that may
  Optimism (imp:0.04) — A tendency to exhibit a positive attitude and positive emotions at work, even un
  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.
  Integrity () — A tendency to be honest and ethical at work.
  Self-Control () — A tendency to remain calm and composed and to manage emotions effectively in res
  Sincerity (imp:-0.01) — A tendency to be genuine and sincere in interactions with others at work, withou
  Intellectual Curiosity (imp:-0.12) — A tendency to seek out and acquire new work-related knowledge and obtain a deep 
  Empathy (imp:-0.13) — A tendency to show concern for others and be sensitive to others' needs and feel
  Cooperation (imp:-0.17) — A tendency to be pleasant, helpful, and willing to assist others at work.
  Adaptability (imp:-0.21) — A tendency to be open to and comfortable with change, new experiences, or ideas 
  Humility (imp:-0.25) — A tendency to be modest and humble when interacting with others at work.
  Leadership Orientation (imp:-0.36) — A tendency to lead, take charge, offer opinions, and provide direction at work.
  Tolerance for Ambiguity (imp:-0.44) — A tendency to be comfortable with ambiguity and uncertainty at work.
  Social Orientation (imp:-0.55) — A tendency to seek out, enjoy, and be energized by social interaction at work.
  Innovation (imp:-0.71) — A tendency to be inventive, to be imaginative, and to adopt new perspectives on 

--- TRANSFERABLE SKILLS ---
  Operation and Control (imp:3.62 lvl:3.12) — Controlling operations of equipment or systems.
  Operations Monitoring (imp:3.25 lvl:3.25) — Watching gauges, dials, or other indicators to make sure a machine is working pr
  Troubleshooting (imp:3.25 lvl:3.00) — Determining causes of operating errors and deciding what to do about it.
  Equipment Maintenance (imp:3.12 lvl:3.00) — Performing routine maintenance on equipment and determining when and what kind o
  Coordination (imp:3.00 lvl:3.50) — Adjusting actions in relation to others' actions.
  Complex Problem Solving (imp:3.00 lvl:2.38) — Identifying complex problems and reviewing related information to develop and ev
  Repairing (imp:3.00 lvl:2.88) — Repairing machines or systems using the needed tools.
  Quality Control Analysis (imp:3.00 lvl:3.00) — Conducting tests and inspections of products, services, or processes to evaluate
  Judgment and Decision Making (imp:3.00 lvl:2.38) — Considering the relative costs and benefits of potential actions to choose the m
  Time Management (imp:3.00 lvl:3.00) — Managing one's own time and the time of others.
  Social Perceptiveness (imp:2.88 lvl:2.25) — Being aware of others' reactions and understanding why they react as they do.
  Instructing (imp:2.88 lvl:2.62) — Teaching others how to do something.
  Equipment Selection (imp:2.88 lvl:2.25) — Determining the kind of tools and equipment needed to do a job.
  Service Orientation (imp:2.38 lvl:2.12) — Actively looking for ways to help people.
  Persuasion (imp:2.25 lvl:2.12) — Persuading others to change their minds or behavior.
  Systems Analysis (imp:2.25 lvl:2.00) — Determining how a system should work and how changes in conditions, operations, 
  Systems Evaluation (imp:2.25 lvl:2.12) — Identifying measures or indicators of system performance and the actions needed 
  Management of Personnel Resources (imp:2.25 lvl:2.25) — Motivating, developing, and directing people as they work, identifying the best 
  Negotiation (imp:2.12 lvl:2.12) — Bringing others together and trying to reconcile differences.
  Installation (imp:2.00 lvl:1.50) — Installing equipment, machines, wiring, or programs to meet specifications.
  Management of Material Resources (imp:2.00 lvl:1.12) — Obtaining and seeing to the appropriate use of equipment, facilities, and materi
  Management of Financial Resources (imp:1.88 lvl:1.12) — Determining how money will be spent to get the work done, and accounting for the
  Operations Analysis (imp:1.25 lvl:0.25) — Analyzing needs and product requirements to create a design.
  Technology Design (imp:1.12 lvl:0.12) — Generating or adapting equipment and technology to serve user needs.
  Programming (imp:1.00) — Writing computer programs for various purposes.

--- NATIONAL WAGES ---
  total_employment : 2,160
  annual_median    : $78,540
  annual_pct10     : $63,750
  annual_pct25     : $71,390
  annual_pct75     : $81,860
  annual_pct90     : $92,830
  annual_mean      : $78,100
  hourly_median    : $37.76

--- GEOGRAPHIC DISPERSION ---
  highest_state    : Wyoming ($116,570)
  lowest_state     : Alabama ($67,020)
  dispersion_ratio : 1.739x

--- TOP STATES BY WAGE (7 total) ---
  Mining, Quarrying, and Oil and Gas Extraction emp:    2,020  median: $  78,290

--- TOP INDUSTRIES BY EMPLOYMENT (1 total) ---
  Mining, Quarrying, and Oil and Gas Extraction emp:    2,020  median: $  78,290

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         : 2026-06-02T22:49:48.397187Z

--- SEMANTIC NEIGHBORS (5) ---

  Title: Coal mining (similarity: 0.5806)
  URL: https://en.wikipedia.org/wiki/Coal_mining
  QID: Q12880211
  Extract: Coal mining is the process of extracting coal from the ground or from a mine. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is called a "pit", 

  Title: Underground hard-rock mining (similarity: 0.4167)
  URL: https://en.wikipedia.org/wiki/Underground_hard-rock_mining
  QID: Q7883681
  Extract: Underground hard-rock mining refers to various underground mining techniques used to excavate "hard" minerals, usually those containing metals, such as ore containing gold, silver, iron, copper, zinc, nickel, tin, and lead. It also involves the same techniques used to excavate ores of gems, such as 

  Title: Mining (similarity: 0.4615)
  URL: https://en.wikipedia.org/wiki/Mining
  QID: Q44497
  Extract: Mining is the extraction of geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oi

  Title: Rock bolt (similarity: 0.4828)
  URL: https://en.wikipedia.org/wiki/Rock_bolt
  QID: Q4066470
  Extract: A rock bolt is a long anchor bolt, for stabilizing rock excavations, which may be used in tunnels or rock cuts. It transfers load from the unstable exterior to the confined interior of the rock mass.

  Title: Mine safety (similarity: 0.1935)
  URL: https://en.wikipedia.org/wiki/Mine_safety
  QID: Q12099081
  Extract: Mine safety is a broad term referring to the practice of controlling and managing a wide range of hazards associated with the life cycle of mining-related activities. Mine safety practice involves the implementation of recognised hazard controls and/or reduction of risks associated with mining activ

model_pass1          : claude-sonnet-4-20250514
model_pass2          : claude-haiku-4-5-20251001
inference_confidence : high
confidence_notes     : High confidence based on detailed O*NET task data, specific wage information from BLS OEWS May 2025, and clear industry concentration data. The specialized nature of underground mining operations provides clear occupational boundaries.
inferred_at          : 2026-06-04T00:04:48.815479+00:00
tokens_input         : 4,396
tokens_output        : 4,052
cost_usd             : $0.046061
wikipedia_used       : False
wikipedia_title      : None
wikipedia_note       : No exact Wikipedia match found for this specialized mining occupation. The closest semantic match was 'Rock bolt' (similarity: 0.483), which covers the technical equipment used in the role but not the occupation itself.

--- PROSE FIELDS ---

ROLE SUMMARY:
Roof Bolters, Mining operate specialized machinery to install roof support bolts in underground mines, ensuring structural stability and worker safety in mining operations. These skilled workers perform critical safety inspections, drill precise bolt holes, and install hydraulic bolt systems that prevent roof collapse in underground mining environments. With median wages of $78,540 according to BLS OEWS May 2025, they represent essential safety infrastructure specialists in the mining industry.

DAY IN THE LIFE:
A roof bolter begins each shift by performing comprehensive safety checks on bolting equipment and testing for methane gas presence in the work area. They position self-propelled bolting machines at specified locations, insert drill bits into chucks, and drill bolt holes into mine roofs at precise distances from ribs or adjacent bolts. Using hydraulic mechanisms, they force bolts into holes and test installation tension with torque wrenches. Throughout their shift, they install safety jacks to support mine roofs, hang ventilation curtains and tubes, and remove loose rock that cannot be supported. They also clean equipment like dust collectors and perform ongoing inspections of roof and rib conditions for hazardous situations.

WHO THRIVES:
Successful roof bolters possess strong mechanical aptitude and exceptional attention to detail, as precision in bolt placement directly impacts mine safety. They excel in high-stakes environments requiring dependability and cautiousness, with the ability to maintain focus during repetitive yet critical tasks. These workers demonstrate strong problem sensitivity and reaction time, quickly identifying potential hazards and responding appropriately. Physical capabilities including control precision, arm-hand steadiness, and multilimb coordination are essential for operating complex machinery in confined underground spaces. The Realistic personality type dominates this role, attracting individuals who prefer hands-on work with tangible equipment and clear safety protocols.

CAREER ENTRY:
Most roof bolters enter the field with a high school diploma (86.7%) or equivalent, with on-the-job training provided by mining companies. Entry-level positions often begin as helpers or general miners before specializing in bolting operations. Safety certification and mine-specific training programs, typically lasting several weeks to months, are required before operating bolting machinery independently. Some employers prefer candidates with prior mechanical or construction experience.

CAREER TRAJECTORY:
Experienced roof bolters can advance to senior bolting positions, shift supervisors, or mining equipment maintenance roles. Career progression often leads to specialized positions such as mine safety inspectors, continuous mining machine operators, or underground mine foremen. Some transition to related construction trades like structural ironwork or pursue mining engineering technology roles with additional education.

MARKET INTELLIGENCE:
The roof bolting occupation employs 2,160 workers nationally with a median annual wage of $78,540, ranging from $63,750 to $92,830 (BLS OEWS May 2025). Geographic wage variation is significant, with Wyoming offering the highest wages at $116,570 compared to Alabama's $67,020, representing a 1.74x ratio. Employment is concentrated almost exclusively in the Mining, Quarrying, and Oil and Gas Extraction industry (2,020 workers). Job prospects are closely tied to coal mining demand and mining safety regulations, with opportunities concentrated in major coal-producing regions including Appalachia, the Powder River Basin, and Illinois Basin.

AUTOMATION OUTLOOK:
Roof bolting faces moderate automation risk as technological advances introduce remote-controlled and semi-autonomous bolting systems. However, the critical safety nature of the work and need for real-time hazard assessment maintain strong demand for human operators who can adapt to changing underground conditions and make complex safety judgments.

--- REASONED EDGES ---
  [task_similarity] Continuous Mining Machine Operators (47-5041.00) — confidence:high
    reasoning: Both roles operate heavy machinery in underground mining environments with shared safety protocols and mine-specific knowledge requirements.
    data: Operating Vehicles, Mechanized Devices, or Equipment (imp:4.4)
    data: Production and Processing knowledge (imp:3.7)
    data: Underground mining environment
  [skill_overlap] Earth Drillers, Except Oil and Gas (47-5023.00) — confidence:high
    reasoning: Both occupations require precision drilling operations and equipment control, with shared abilities in Control Precision (imp:4.1) and Manual Dexterity (imp:3.9).
    data: Drill bolt holes into roofs
    data: Control Precision (imp:4.1)
    data: Operating drilling equipment
  [task_similarity] Structural Iron and Steel Workers (47-2221.00) — confidence:medium
    reasoning: Both roles install structural support systems requiring precision placement and safety verification, sharing Installation of support equipment tasks.
    data: Force bolts into holes using hydraulic mechanisms
    data: Install safety or support equipment
    data: Structural support installation
  [riasec_cluster] Riggers (49-9096.00) — confidence:medium
    reasoning: Both occupations show strong Realistic orientation (R:7.00) and involve positioning heavy equipment with precision coordination requirements.
    data: RIASEC R:7.00
    data: Position bolting machines
    data: Multilimb Coordination (imp:3.8)
  [career_pathway] Helpers--Extraction Workers (47-5081.00) — confidence:high
    reasoning: Represents typical entry path into specialized mining operations, with helpers often advancing to specialized roles like roof bolting.
    data: Job Zone 2
    data: High school diploma entry requirement
    data: Mining industry concentration
  [knowledge_overlap] Reinforcing Iron and Rebar Workers (47-2171.00) — confidence:medium
    reasoning: Both roles require mechanical knowledge (imp:3.5) and involve installing structural reinforcement systems with precision placement requirements.
    data: Mechanical knowledge (imp:3.5)
    data: Install structural support
    data: Construction/reinforcement focus

--- NORMALIZER SIGNALS ---
  match_keywords   : ['roof bolter', 'bolting machine operator', 'underground bolter', 'mine roof support', 'bolt installation', 'mining bolter', 'roof bolting', 'underground mining bolt']
  exclude_keywords : ['surface mining', 'coal cutter', 'explosives', 'drilling rig', 'quarry']
  title_patterns   : ['*roof*bolter*', '*bolting*machine*operator*', '*underground*bolter*', '*bolt*machine*operator*', '*mining*bolter*']
  common_variations: ['roof bolter operator', 'bolting inspector', 'underground roof bolter', 'roof bolting coal miner', 'bolting machine operator', 'bolt man', 'bolter operator', 'mine roof bolter']

total_terms    : 40
top_words      : ['tendency', 'equipment', 'others', 'mining', 'safety', 'mine', 'principles', 'rock', 'control', 'includes', 'bolts', 'materials', 'techniques', 'objects', 'bolting', 'roof', 'activities', 'ideas', 'machines', 'install']
source_layers  : onet_tasks | onet_dimensions | dwas | wikipedia | inference

TERM                    COUNT     FREQ  DOMINANT SOURCE      SOURCE BREAKDOWN
──────────────────────────────────────────────────────────────────────────────────────────
tendency                   42  0.01523  onet_dimensions      onet_dimensions:100%
equipment                  40  0.01450  onet_dimensions      onet_dimensions:57%  dwas:25%  inference:12%
others                     38  0.01378  onet_dimensions      onet_dimensions:100%
mining                     25  0.00907  wikipedia            wikipedia:48%  inference:48%  dwas:4%
safety                     24  0.00870  inference            inference:50%  wikipedia:21%  dwas:17%
mine                       16  0.00580  wikipedia            wikipedia:56%  inference:38%  onet_tasks:6%
principles                 16  0.00580  onet_dimensions      onet_dimensions:100%
rock                       14  0.00508  wikipedia            wikipedia:57%  onet_tasks:14%  dwas:14%
control                    13  0.00471  onet_dimensions      onet_dimensions:92%  inference:8%
includes                   13  0.00471  onet_dimensions      onet_dimensions:92%  wikipedia:8%
bolts                      12  0.00435  onet_tasks           onet_tasks:75%  inference:25%
materials                  12  0.00435  onet_dimensions      onet_dimensions:83%  wikipedia:17%
techniques                 12  0.00435  onet_dimensions      onet_dimensions:83%  wikipedia:17%
objects                    12  0.00435  onet_dimensions      onet_dimensions:100%
bolting                    11  0.00399  inference            inference:73%  onet_tasks:27%
roof                       11  0.00399  inference            inference:91%  onet_tasks:9%
activities                 11  0.00399  onet_dimensions      onet_dimensions:82%  wikipedia:18%
ideas                      11  0.00399  onet_dimensions      onet_dimensions:100%
machines                   10  0.00363  onet_dimensions      onet_dimensions:70%  onet_tasks:20%  inference:10%
install                    10  0.00363  dwas                 dwas:60%  inference:30%  onet_tasks:10%
quickly                    10  0.00363  onet_dimensions      onet_dimensions:90%  inference:10%
body                       10  0.00363  onet_dimensions      onet_dimensions:100%
coal                       10  0.00363  wikipedia            wikipedia:80%  inference:20%
underground                 9  0.00326  inference            inference:56%  wikipedia:33%  onet_tasks:11%
problems                    9  0.00326  onet_dimensions      onet_dimensions:100%
resources                   9  0.00326  onet_dimensions      onet_dimensions:100%
performing                  9  0.00326  onet_dimensions      onet_dimensions:89%  inference:11%
orientation                 9  0.00326  onet_dimensions      onet_dimensions:100%
identifying                 9  0.00326  onet_dimensions      onet_dimensions:89%  inference:11%
drill                       8  0.00290  onet_tasks           onet_tasks:50%  inference:38%  dwas:12%
bolt                        8  0.00290  inference            inference:62%  wikipedia:25%  onet_tasks:12%
holes                       8  0.00290  onet_tasks           onet_tasks:50%  inference:38%  dwas:12%
self                        8  0.00290  onet_dimensions      onet_dimensions:75%  onet_tasks:12%  inference:12%
monitoring                  8  0.00290  onet_dimensions      onet_dimensions:100%
problem                     8  0.00290  onet_dimensions      onet_dimensions:88%  inference:12%
procedures                  8  0.00290  onet_dimensions      onet_dimensions:100%
needs                       8  0.00290  onet_dimensions      onet_dimensions:100%
rules                       8  0.00290  onet_dimensions      onet_dimensions:100%
production                  8  0.00290  onet_dimensions      onet_dimensions:100%
operations                  8  0.00290  onet_dimensions      onet_dimensions:75%  inference:25%