- Direct workers in transportation or related services, such as pumping, moving, storing, or loading or unloading of materials.
Occupations with related tasks Save Table: XLSX CSV
- Prevent ships under navigational control from engaging in unsafe operations.
- Serve as a vessel's docking master upon arrival at a port or at a berth.
- Direct or coordinate crew members or workers performing activities such as loading or unloading cargo, steering vessels, operating engines, or operating, maintaining, or repairing ship equipment.
- Assign watches or living quarters to crew members.
- Supervise crews in cleaning or maintaining decks, superstructures, or bridges.
- Direct courses and speeds of ships, based on specialized knowledge of local winds, weather, water depths, tides, currents, and hazards.
- Consult maps, charts, weather reports, or navigation equipment to determine and direct ship movements.
- Steer and operate vessels, using radios, depth finders, radars, lights, buoys, or lighthouses.
- Operate ship-to-shore radios to exchange information needed for ship operations.
- Dock or undock vessels, sometimes maneuvering through narrow spaces, such as locks.
- Stand watches on vessels during specified periods while vessels are under way.
- Inspect vessels to ensure efficient and safe operation of vessels and equipment and conformance to regulations.
- Read gauges to verify sufficient levels of hydraulic fluid, air pressure, or oxygen.
- Report to appropriate authorities any violations of federal or state pilotage laws.
- Provide assistance in maritime rescue operations.
- Signal passing vessels, using whistles, flashing lights, flags, or radios.
- Measure depths of water, using depth-measuring equipment.
- Signal crew members or deckhands to rig tow lines, open or close gates or ramps, or pull guard chains across entries.
- Maintain boats or equipment on board, such as engines, winches, navigational systems, fire extinguishers, or life preservers.
- Maintain records of daily activities, personnel reports, ship positions and movements, ports of call, weather and sea conditions, pollution control efforts, or cargo or passenger status.
- Advise ships' masters on harbor rules and customs procedures.
- Observe loading or unloading of cargo or equipment to ensure that handling and storage are performed according to specifications.
- Calculate sightings of land, using electronic sounding devices and following contour lines on charts.
- Learn to operate new technology systems and procedures through instruction, simulators, or models.
- Arrange for ships to be fueled, restocked with supplies, or repaired.
- Purchase supplies or equipment.
- Tow and maneuver barges or signal tugboats to tow barges to destinations.
- Perform various marine duties, such as checking for oil spills or other pollutants around ports or harbors or patrolling beaches.
- Interview and hire crew members.
- Conduct safety drills such as man overboard or fire drills.
- Oversee the use of drones for inspection and maintenance of hard-to-reach parts of the vessel.
- Prevent ships under navigational control from engaging in unsafe operations.
- Serve as a vessel's docking master upon arrival at a port or at a berth.
- Direct or coordinate crew members or workers performing activities such as loading or unloading cargo, steering vessels, operating engines, or operating, maintaining, or repairing ship equipment.
- Assign watches or living quarters to crew members.
- Supervise crews in cleaning or maintaining decks, superstructures, or bridges.
- Oversee recycling pick-up or drop-off programs to ensure compliance with community ordinances.
- Supervise recycling technicians, community service workers, or other recycling operations employees or volunteers.
- Assign truck drivers or recycling technicians to routes.
- Coordinate shipments of recycling materials with shipping brokers or processing companies.
- Maintain logs of recycling materials received or shipped to processing companies.
- Review customer requests for service to determine service needs and deploy appropriate resources to provide service.
- Provide training to recycling technicians or community service workers on topics such as safety, solid waste processing, or general recycling operations.
- Identify or investigate new opportunities for materials to be collected and recycled.
- Create or manage recycling operations budgets.
- Prepare bills of lading, statements of shipping records, or customer receipts related to recycling or hazardous material services.
- Inspect physical condition of recycling or hazardous waste facility for compliance with safety, quality, and service standards.
- Negotiate contracts with waste management or other firms.
- Operate recycling processing equipment, such as sorters, balers, crushers, and granulators to sort and process materials.
- Operate fork lifts, skid loaders, or trucks to move or store recyclable materials.
- Schedule movement of recycling materials into and out of storage areas.
- Oversee campaigns to promote recycling or waste reduction programs in communities or private companies.
- Coordinate recycling collection schedules to optimize service and efficiency.
- Develop community or corporate recycling plans and goals to minimize waste and conform to resource constraints.
- Prepare grant applications to fund recycling programs or program enhancements.
- Investigate violations of solid waste or recycling ordinances.
- Implement grant-funded projects, monitoring and reporting progress in accordance with sponsoring agency requirements.
- Make presentations to educate the public on how to recycle or on the environmental advantages of recycling.
- Design community solid and hazardous waste management programs.
- Oversee recycling pick-up or drop-off programs to ensure compliance with community ordinances.
- Supervise recycling technicians, community service workers, or other recycling operations employees or volunteers.
- Assign truck drivers or recycling technicians to routes.
- Coordinate shipments of recycling materials with shipping brokers or processing companies.
- Direct and instruct workers engaged in yard activities, such as switching tracks, coupling and uncoupling cars, and routing inbound and outbound traffic.
- Direct engineers to move cars to fit planned train configurations, combining or separating cars to make up or break up trains.
- Supervise and coordinate crew activities to transport freight and passengers and to provide boarding, porter, maid, and meal services to passengers.
- Supervise workers in the inspection and maintenance of mechanical equipment to ensure efficient and safe train operation.
- Signal engineers to begin train runs, stop trains, or change speed, using telecommunications equipment or hand signals.
- Confer with engineers regarding train routes, timetables, and cargoes, and to discuss alternative routes when there are rail defects or obstructions.
- Receive information regarding train or rail problems from dispatchers or from electronic monitoring devices.
- Receive instructions from dispatchers regarding trains' routes, timetables, and cargoes.
- Operate controls to activate track switches and traffic signals.
- Keep records of the contents and destination of each train car, and make sure that cars are added or removed at proper points on routes.
- Arrange for the removal of defective cars from trains at stations or stops.
- Inspect each car periodically during runs.
- Review schedules, switching orders, way bills, and shipping records to obtain cargo loading and unloading information and to plan work.
- Confirm routes and destination information for freight cars.
- Verify accuracy of timekeeping instruments with engineers to ensure trains depart on time.
- Document and prepare reports of accidents, unscheduled stops, or delays.
- Instruct workers to set warning signals in front and at rear of trains during emergency stops.
- Observe yard traffic to determine tracks available to accommodate inbound and outbound traffic.
- Record departure and arrival times, messages, tickets and revenue collected, and passenger accommodations and destinations.
- Inspect freight cars for compliance with sealing procedures, and record car numbers and seal numbers.
- Direct and instruct workers engaged in yard activities, such as switching tracks, coupling and uncoupling cars, and routing inbound and outbound traffic.
- Direct engineers to move cars to fit planned train configurations, combining or separating cars to make up or break up trains.
- Supervise and coordinate crew activities to transport freight and passengers and to provide boarding, porter, maid, and meal services to passengers.
- Supervise workers in the inspection and maintenance of mechanical equipment to ensure efficient and safe train operation.
- Organize and direct the activities of crew members.
- Oversee operation of vessels used for carrying passengers, motor vehicles, or goods across rivers, harbors, lakes, and coastal waters.
- Issue directions for loading, unloading, and seating in boats.
- Operate engine throttles and steering mechanisms to guide boats on desired courses.
- Direct safety operations in emergency situations.
- Secure boats to docks with mooring lines, and cast off lines to enable departure.
- Maintain desired courses, using compasses or electronic navigational aids.
- Follow safety procedures to ensure the protection of passengers, cargo, and vessels.
- Maintain equipment such as range markers, fire extinguishers, boat fenders, lines, pumps, and fittings.
- Report any observed navigational hazards to authorities.
- Service motors by performing tasks such as changing oil and lubricating parts.
- Arrange repairs, fuel, and supplies for vessels.
- Clean boats and repair hulls and superstructures, using hand tools, paint, and brushes.
- Tow, push, or guide other boats, barges, logs, or rafts.
- Take depth soundings in turning basins.
- Perform general labor duties such as repairing booms.
- Organize and direct the activities of crew members.
- Oversee operation of vessels used for carrying passengers, motor vehicles, or goods across rivers, harbors, lakes, and coastal waters.
- Issue directions for loading, unloading, and seating in boats.
- Direct workers engaged in placing blocks or outriggers to prevent capsizing of machines when lifting heavy loads.
- Direct ground workers engaged in activities such as moving stakes or markers, or changing positions of towers.
- Move levers, depress foot pedals, and turn dials to operate power machinery, such as power shovels, stripping shovels, scraper loaders, or backhoes.
- Set up or inspect equipment prior to operation.
- Become familiar with digging plans, machine capabilities and limitations, and efficient and safe digging procedures in a given application.
- Observe hand signals, grade stakes, or other markings when operating machines so that work can be performed to specifications.
- Operate machinery to perform activities such as backfilling excavations, vibrating or breaking rock or concrete, or making winter roads.
- Receive written or oral instructions regarding material movement or excavation.
- Move materials over short distances, such as around a construction site, factory, or warehouse.
- Create or maintain inclines or ramps.
- Lubricate, adjust, or repair machinery and replace parts, such as gears, bearings, or bucket teeth.
- Handle slides, mud, or pit cleanings or maintenance.
- Measure and verify levels of rock or gravel, bases, or other excavated material.
- Adjust dig face angles for varying overburden depths and set lengths.
- Drive machines to work sites.
- Perform manual labor to prepare or finish sites, such as shoveling materials by hand.
- Direct workers engaged in placing blocks or outriggers to prevent capsizing of machines when lifting heavy loads.
- Direct ground workers engaged in activities such as moving stakes or markers, or changing positions of towers.
- Direct ground crews in the loading, unloading, securing, or staging of aircraft cargo or baggage.
- Determine the quantity and orientation of cargo, and compute an aircraft's center of gravity.
- Train new employees in areas such as safety procedures or equipment operation.
- Distribute cargo to maximize use of space.
- Calculate load weights for different aircraft compartments, using charts and computers.
- Accompany aircraft as a member of the flight crew to monitor and handle cargo in flight.
- Direct ground crews in the loading, unloading, securing, or staging of aircraft cargo or baggage.
- Direct or assist workers placing shore anchors and cables, laying additional pipes from dredges to shore, and pumping water from pontoons.
- Move levers to position dredges for excavation, to engage hydraulic pumps, to raise and lower suction booms, and to control rotation of cutterheads.
- Start and stop engines to operate equipment.
- Start power winches that draw in or let out cables to change positions of dredges, or pull in and let out cables manually.
- Pump water to clear machinery pipelines.
- Lower anchor poles to verify depths of excavations, using winches, or scan depth gauges to determine depths of excavations.
- Perform maintenance on dredge equipment, such as changing engine oil.
- Direct or assist workers placing shore anchors and cables, laying additional pipes from dredges to shore, and pumping water from pontoons.
- Direct helpers engaged in placing blocking or outrigging under cranes.
- Determine load weights and check them against lifting capacities to prevent overload.
- Move levers, depress foot pedals, or turn dials to operate cranes, cherry pickers, electromagnets, or other moving equipment for lifting, moving, or placing loads.
- Inspect and adjust crane mechanisms or lifting accessories to prevent malfunctions or damage.
- Inspect cables or grappling devices for wear and install or replace cables, as needed.
- Clean, lubricate, and maintain mechanisms such as cables, pulleys, or grappling devices, making repairs, as necessary.
- Load or unload bundles from trucks, or move containers to storage bins, using moving equipment.
- Review daily work or delivery schedules to determine orders, sequences of deliveries, or special loading instructions.
- Inspect bundle packaging for conformance to regulations or customer requirements, and remove and batch packaging tickets.
- Direct truck drivers backing vehicles into loading bays and cover, uncover, or secure loads for delivery.
- Weigh bundles, using floor scales, and record weights for company records.
- Inspect crane site conditions to determine ground stability.
- Direct helpers engaged in placing blocking or outrigging under cranes.
- Arrange for hauling of logs to appropriate mill sites.
- Evaluate log characteristics and determine grades, using established criteria.
- Record data about individual trees or load volumes into tally books or hand-held collection terminals.
- Measure felled logs or loads of pulpwood to calculate volume, weight, dimensions, and marketable value, using measuring devices and conversion tables.
- Paint identification marks of specified colors on logs to identify grades or species, using spray cans, or call out grades to log markers.
- Jab logs with metal ends of scale sticks, and inspect logs to ascertain characteristics or defects such as water damage, splits, knots, broken ends, rotten areas, twists, and curves.
- Identify logs of substandard or special grade so that they can be returned to shippers, regraded, recut, or transferred for other processing.
- Weigh log trucks before and after unloading, and record load weights and supplier identities.
- Measure log lengths and mark boles for bucking into logs, according to specifications.
- Communicate with coworkers by signals to direct log movement.
- Drive to sawmills, wharfs, or skids to inspect logs or pulpwood.
- Saw felled trees into lengths.
- Move logs using heavy equipment such as log loaders.
- Arrange for hauling of logs to appropriate mill sites.
- Supervise oil pumpers and other workers engaged in producing oil from wells.
- Monitor pumps and flow lines for gas and fluid leaks.
- Gauge oil and gas production.
- Start compressor engines and divert oil from storage tanks into compressor units and auxiliary equipment to recover natural gas from oil.
- Monitor control panels during pumping operations to ensure that materials are being pumped at the correct pressure, density, rate, and concentration.
- Operate engines and pumps to shut off wells according to production schedules, and to switch flow of oil into storage tanks.
- Repair gas and oil meters and gauges.
- Perform routine maintenance on vehicles and equipment.
- Open valves to return compressed gas to bottoms of specified wells to repressurize them and force oil to surface.
- Change water filters.
- Prepare trucks and equipment necessary for the type of pumping service required.
- Attach pumps and hoses to wellheads.
- Mix acids, chemicals, or dry cement as required for a specific job.
- Unload and assemble pipes and pumping equipment, using hand tools.
- Conduct regular inspections of equipment using drones or other advanced technology.
- Supervise oil pumpers and other workers engaged in producing oil from wells.
- Direct crews to reload freight or to insert additional bracing or packing as necessary.
- Prepare and submit reports after completion of freight shipments.
- Inspect shipments to ensure that freight is securely braced and blocked.
- Record details about freight conditions, handling of freight, and any problems encountered.
- Advise crews in techniques of stowing dangerous and heavy cargo.
- Observe loading of freight to ensure that crews comply with procedures.
- Recommend remedial procedures to correct any violations found during inspections.
- Inspect loaded cargo, cargo lashed to decks or in storage facilities, and cargo handling devices to determine compliance with health and safety regulations and need for maintenance.
- Notify workers of any special treatment required for shipments.
- Check temperatures and humidities of shipping and storage areas to ensure that they are at appropriate levels to protect cargo.
- Determine cargo transportation capabilities by reading documents that set forth cargo loading and securing procedures, capacities, and stability factors.
- Read draft markings to determine depths of vessels in water.
- Post warning signs on vehicles containing explosives or flammable or radioactive materials.
- Measure heights and widths of loads to ensure they will pass over bridges or through tunnels on scheduled routes.
- Calculate gross and net tonnage, hold capacities, volumes of stored fuel and water, cargo weights, and vessel stability factors, using mathematical formulas.
- Measure vessels' holds and depths of fuel and water in tanks, using sounding lines and tape measures.
- Visually inspect cargo for damage upon arrival or discharge.
- Direct crews to reload freight or to insert additional bracing or packing as necessary.
- Enforce safety rules and regulations.
- Analyze and record personnel or operational data and write related activity reports.
- Apply customer feedback to service improvement efforts.
- Compute or estimate cash, payroll, transportation, or personnel requirements.
- Confer with customers, supervisors, contractors, or other personnel to exchange information or to resolve problems.
- Direct or coordinate the activities of workers, such as flight or car attendants.
- Explain and demonstrate work tasks to new workers or assign training tasks to experienced workers.
- Inform workers about interests or special needs of specific groups.
- Inspect materials, stock, vehicles, equipment, or facilities to ensure that they are safe, free of defects, and consistent with specifications.
- Inspect work areas or operating equipment to ensure conformance to established standards in areas such as cleanliness or maintenance.
- Meet with managers or other supervisors to stay informed of changes affecting operations.
- Observe and evaluate workers' appearance and performance to ensure quality service and compliance with specifications.
- Participate in continuing education to stay abreast of industry trends and developments.
- Recommend and implement measures to improve worker motivation, work methods, or customer services.
- Recruit and hire staff members.
- Requisition necessary supplies, equipment, or services.
- Resolve customer complaints regarding worker performance or services rendered.
- Take disciplinary action to address performance problems.
- Train workers in proper operational procedures and functions and explain company policies.
- Enforce safety rules and regulations.
- Transmit and explain work orders to laborers.
- Maintain a safe working environment by monitoring safety procedures and equipment.
- Collaborate with workers and managers to solve work-related problems.
- Review work throughout the work process and at completion to ensure that it has been performed properly.
- Inform designated employees or departments of items loaded or problems encountered.
- Inspect equipment for wear and for conformance to specifications.
- Prepare and maintain work records and reports of information such as employee time and wages, daily receipts, or inspection results.
- Plan work schedules and assign duties to maintain adequate staff for effective performance of activities and response to fluctuating workloads.
- Participate in the hiring process by reviewing credentials, conducting interviews, or making hiring decisions or recommendations.
- Estimate material, time, and staffing requirements for a given project, based on work orders, job specifications, and experience.
- Counsel employees in work-related activities, personal growth, or career development.
- Assess training needs of staff and arrange for or provide appropriate instruction.
- Conduct staff meetings to relay general information or to address specific topics, such as safety.
- Check specifications of materials loaded or unloaded against information contained in work orders.
- Perform the same work duties as those supervised, or perform more difficult or skilled tasks or assist in their performance.
- Resolve personnel problems, complaints, or formal grievances when possible, or refer them to higher-level supervisors for resolution.
- Recommend or initiate personnel actions, such as promotions, transfers, or disciplinary measures.
- Evaluate employee performance and prepare performance appraisals.
- Examine freight to determine loading sequences.
- Schedule times of shipment and modes of transportation for materials.
- Inventory supplies and requisition or purchase additional items, as necessary.
- Quote prices to customers.
- Provide assistance in balancing books, tracking, monitoring, or projecting a unit's budget needs, and in developing unit policies and procedures.
- Inspect job sites to determine the extent of maintenance or repairs needed.
- Transmit and explain work orders to laborers.
- Supervise other crew members.
- Check aircraft prior to flights to ensure that the engines, controls, instruments, and other systems are functioning properly.
- Co-pilot aircraft or perform captain's duties, as required.
- Consider airport altitudes, outside temperatures, plane weights, and wind speeds and directions to calculate the speed needed to become airborne.
- Use instrumentation to pilot aircraft when visibility is poor.
- Monitor engine operation, fuel consumption, and functioning of aircraft systems during flights.
- Order changes in fuel supplies, loads, routes, or schedules to ensure safety of flights.
- Contact control towers for takeoff clearances, arrival instructions, and other information, using radio equipment.
- Plan flights according to government and company regulations, using aeronautical charts and navigation instruments.
- Start engines, operate controls, and pilot airplanes to transport passengers, mail, or freight according to flight plans, regulations, and procedures.
- Check baggage or cargo to ensure that it has been loaded correctly.
- Obtain and review data such as load weights, fuel supplies, weather conditions, and flight schedules to determine flight plans and identify needed changes.
- Conduct in-flight tests and evaluations at specified altitudes and in all types of weather to determine the receptivity and other characteristics of equipment and systems.
- Choose routes, altitudes, and speeds that will provide the fastest, safest, and smoothest flights.
- Write specified information in flight records, such as flight times, altitudes flown, and fuel consumption.
- Coordinate flight activities with ground crews and air traffic control, and inform crew members of flight and test procedures.
- Perform minor aircraft maintenance and repair work, or arrange for major maintenance.
- Request changes in altitudes or routes as circumstances dictate.
- File instrument flight plans with air traffic control so that flights can be coordinated with other air traffic.
- Rescue and evacuate injured persons.
- Instruct other pilots and student pilots in aircraft operations.
- Fly with other pilots or pilot-license applicants to evaluate their proficiency.
- Plan and formulate flight activities and test schedules and prepare flight evaluation reports.
- Teach company regulations and procedures to other pilots.
- Operate large scale uncrewed aerial vehicles (UAVs) or drones for various commercial purposes, such as aerial photography, surveying land and structures, or monitoring wildlife.
- Supervise other crew members.
- Direct other workers to move stakes, place blocks, position anchors or cables, or move materials.
- Handle high voltage sources and hang electrical cables.
- Drive loaded shuttle cars to ramps and move controls to discharge loads into mine cars or onto conveyors.
- Pry off loose material from roofs and move it into the paths of machines, using crowbars.
- Move trailing electrical cables clear of obstructions, using rubber safety gloves.
- Control conveyors that run the entire length of shuttle cars to distribute loads as loading progresses.
- Observe hand signals, grade stakes, or other markings when operating machines.
- Examine roadway and clear obstructions from the path of travel.
- Drive machines into piles of material blasted from working faces.
- Operate levers to move conveyor booms or shovels so that mine contents such as coal, rock, and ore can be placed into cars or onto conveyors.
- Clean, fuel, service, and perform safety checks on all equipment, and repair and replace parts as necessary.
- Clean hoppers, and clean spillage from tracks, walks, driveways, and conveyor decking.
- Oil, lubricate, and adjust conveyors, crushers, and other equipment, using hand tools and lubricating equipment.
- Monitor loading processes to ensure that materials are loaded according to specifications.
- Measure, weigh, or verify levels of rock, gravel, or other excavated material to prevent equipment overloads.
- Replace hydraulic hoses, headlight bulbs, and gathering-arm teeth.
- Stop gathering arms when cars are full.
- Move mine cars into position for loading and unloading, using pinchbars inserted under car wheels to position cars under loading spouts.
- Advance machines to gather material and convey it into cars.
- Signal workers to move loaded cars.
- Guide and stop cars by switching, applying brakes, or placing scotches, or wooden wedges, between wheels and rails.
- Observe and record car numbers, carriers, customers, tonnages, and grades and conditions of material.
- Read written instructions or confer with supervisors about schedules and materials to be moved.
- Maintain records of materials moved.
- Push or ride cars down slopes, or hook cars to cables and control cable drum brakes, to ease cars down inclines.
- Direct other workers to move stakes, place blocks, position anchors or cables, or move materials.
- Give directions to laborers who are packing goods and moving them onto trailers.
- Check all load-related documentation for completeness and accuracy.
- Inspect loads to ensure that cargo is secure.
- Check vehicles to ensure that mechanical, safety, and emergency equipment is in good working order.
- Crank trailer landing gear up or down to safely secure vehicles.
- Obtain receipts or signatures for delivered goods and collect payment for services when required.
- Maintain logs of working hours or of vehicle service or repair status, following applicable state and federal regulations.
- Read bills of lading to determine assignment details.
- Report vehicle defects, accidents, traffic violations, or damage to the vehicles.
- Perform basic vehicle maintenance tasks, such as adding oil, fuel, or radiator fluid, performing minor repairs, or washing trucks.
- Couple or uncouple trailers by changing trailer jack positions, connecting or disconnecting air or electrical lines, or manipulating fifth-wheel locks.
- Maneuver trucks into loading or unloading positions, following signals from loading crew and checking that vehicle and loading equipment are properly positioned.
- Collect delivery instructions from appropriate sources, verifying instructions and routes.
- Drive trucks with capacities greater than 13 tons, including tractor-trailer combinations, to transport and deliver products, livestock, or other materials.
- Read and interpret maps to determine vehicle routes.
- Check conditions of trailers after contents have been unloaded to ensure that there has been no damage.
- Operate equipment, such as truck cab computers, CB radios, phones, or global positioning systems (GPS) equipment to exchange necessary information with bases, supervisors, or other drivers.
- Drive trucks to weigh stations before and after loading and along routes in compliance with state regulations.
- Load or unload trucks or help others with loading or unloading, using special loading-related equipment or other equipment as necessary.
- Plan or adjust routes based on changing conditions, using computer equipment, global positioning systems (GPS) equipment, or other navigation devices, to minimize fuel consumption and carbon emissions.
- Perform emergency roadside repairs, such as changing tires or installing light bulbs, tire chains, or spark plugs.
- Remove debris from loaded trailers.
- Secure cargo for transport, using ropes, blocks, chain, binders, or covers.
- Follow appropriate safety procedures for transporting dangerous goods.
- Inventory and inspect goods to be moved to determine quantities and conditions.
- Follow special cargo-related procedures, such as checking refrigeration systems for frozen foods or providing food or water for livestock.
- Install or remove special equipment, such as tire chains, grader blades, plow blades, or sanders.
- Wrap and secure goods using pads, packing paper, containers, or straps.
- Operate idle reduction systems or auxiliary power systems to generate power from alternative sources, such as fuel cells, to reduce idling time, to heat or cool truck cabins, or to provide power for other equipment.
- Give directions to laborers who are packing goods and moving them onto trailers.
