NewDiesel Mechanic Technician II Summit School ServicesDiesel Mechanic Technician IIAurora, ILYou’ll work across yellow-bus systems—preventive maintenance, air and hydraulic braking, steering/suspension, electrical/charging, HVAC, drivetrains/transmissions, and DVIR/state inspection readiness—balancing quality repairs with uptime so routes leave on time. • Diagnose and repair automotive and diesel systems — including brakes, steering, suspension, drivetrains, electrical, cooling, and fuel systems — according to skill level.
NewDiesel Mechanic - $2500 Sign On Bonus! Kenan Advantage GroupDiesel Mechanic - $2500 Sign On Bonus!Roselle, IL$18–$36 / hourWith expert knowledge, supportive leadership, and a strong belief in our company culture, our team exemplifies the passion, pride, and entrepreneurial spirit that help us reach our goals every day. Diesel Mechanics are required to safely and accurately perform general property and vehicle maintenance & repair duties in and around the shop operations in a fast-paced environment.
NewDiesel Mechanic III - $2500 Sign On Bonus! Kenan Advantage GroupDiesel Mechanic III - $2500 Sign On Bonus!Lake In The Hills, IL$25–$35 / hourWith expert knowledge, supportive leadership, and a strong belief in our company culture, our team exemplifies the passion, pride, and entrepreneurial spirit that help us reach our goals every day. Diesel Mechanics are required to safely and accurately perform general property and vehicle maintenance & repair duties in and around the shop operations in a fast-paced environment.
Forklift / Diesel Mechanic - Overnights UlineForklift / Diesel Mechanic - OvernightsPleasant Prairie, WI$35–$45 / hourAs a Uline Overnight Forklift / Diesel Mechanic, bring your troubleshooting and technical skills to our best-in-class Distribution Center, ensuring all machinery runs at peak performance. Maintain and repair warehouse equipment such as Crown stock pickers, Toyota forklifts, conveyor systems, Lantech wrappers and industrial robotics.
NewDiesel Technician - Earn Up to $34/Hour + Benefits Dollar General FleetDiesel Technician - Earn Up to $34/Hour + BenefitsCrystal Lake, ILPerform maintenance repairs as required to maximize safety and reliability on all fleet vehicles including tractors, trailers, lift-gates, and any company-owned equipment. Perform preventive maintenance (PMs) on tractor and trailer equipment, including routine technical repairs and completing repair orders.
NewElk Grove Village Lead Technician Summit School ServicesElk Grove Village Lead TechnicianWheeling, ILYou’ll handle advanced diagnostics and repairs on medium/heavy vehicles, oversee inspection readiness (DVIR, DOT/state), and guide technicians through preventive maintenance cycles so routes leave safe and on time. Summit School Services companies share a strong commitment to provide the highest level of transportation safety, quality transportation, outstanding customer service and positive employee relations.
NewMaintenance Technician I Summit School ServicesMaintenance Technician IAurora, ILYou’ll work across yellow-bus systems—preventive maintenance, DOT/state inspections and DVIR readiness, air/hydraulic braking, steering/suspension, electrical/charging, HVAC, drivetrains/transmissions, and engine performance—while modeling craftsmanship, safety, and uptime. As a Fleet Technician I supporting our school bus fleet, you’ll handle advanced diagnostics, inspections, and repairs on Summits Fleet of vehicles so routes leave safe and on time.
Maintenance Technician II Summit School ServicesMaintenance Technician IILake Villa, ILYou’ll work across yellow-bus systems—preventive maintenance, air and hydraulic braking, steering/suspension, electrical/charging, HVAC, drivetrains/transmissions, and DVIR/state inspection readiness—balancing quality repairs with uptime so routes leave on time. • Diagnose and repair automotive and diesel systems — including brakes, steering, suspension, drivetrains, electrical, cooling, and fuel systems — according to skill level.
NewElk Grove Village Maintenance Technician II Summit School ServicesElk Grove Village Maintenance Technician IIWheeling, ILYou’ll work across yellow-bus systems—preventive maintenance, air and hydraulic braking, steering/suspension, electrical/charging, HVAC, drivetrains/transmissions, and DVIR/state inspection readiness—balancing quality repairs with uptime so routes leave on time. • Diagnose and repair automotive and diesel systems — including brakes, steering, suspension, drivetrains, electrical, cooling, and fuel systems — according to skill level.
2nd Shift Diesel Mechanic Waste Connections Inc2nd Shift Diesel MechanicAurora, ILTo excel in this 2nd shift diesel mechanic role, you should bring: • Hands-on experience with diesel truck diagnostics, preventive maintenance, and repairs • Hydraulic system experience (preferred but not required) • Ability to work in all weather conditions • Ability to lift at least 50lbs repeatedly. In this role, you'll perform essential fleet maintenance and diesel truck repair to keep our drivers safe and our operations running smoothly.
Diesel Mechanic/Technician Swift Transportation Co LLCDiesel Mechanic/TechnicianChicago, IL$24–$33 / hourWe're one of the biggest fleets on the road and we make our presence known, with more than 13,000 trucks, 60,000 trailers, 12,000 company drivers, and over 700 Fleet Technicians. Complete a quality preventative maintenance inspection and repairs on all company owned equipment, to include tractors, trailers, refrigerated units and support equipment.
Sr. Diesel Mechanic PTO & Immediate Healthcare! Waste Management IncSr. Diesel Mechanic PTO & Immediate Healthcare!Melrose Park, IL$30.31–$45.49 / hourRequired to be exposed to physical occupational risks (such as cuts, burns, exposure to toxic chemicals, etc.) often; Required to be exposed to physical environment which involves dirt, odors, noise, weather extremes or similar elements often; This job operates in both inside garage, shop or gas plant conditions as well as in outside conditions that include inclement weather, heat and humidity. WM has the largest disposal network and collection fleet in North America, is the largest recycler of post‑consumer materials and is a leader in beneficial use of landfill gas, with a growing network of renewable natural gas plants and the most landfill gas‑to‑electricity plants in North America.
Mobile Diesel Mechanic/Technician (1996) Kooner Fleet Management SolutionsMobile Diesel Mechanic/Technician (1996)Chicago, ILGeared up with your own, fully equipped company service truck, top-tier tools, and a supportive team that values your skill, drive and dedication, you’ll tackle new challenges every day and take pride in delivering safe, reliable and efficient service that keeps America moving. With nearly a decade of industry experience, Kooner FMS helps fleets reduce downtime, extend vehicle life, and simplify operations through proactive maintenance programs and advanced technology.
Diesel Mechanic 2nd Shift PTO & Benefits! Waste Management IncDiesel Mechanic 2nd Shift PTO & Benefits!Cicero, IL$26.97–$40.46 / hourRequired to be exposed to physical occupational risks (such as cuts, burns, exposure to toxic chemicals, etc.) often; Required to be exposed to physical environment which involves dirt, odors, noise, weather extremes or similar elements often; This job operates in both inside garage, shop or gas plant conditions as well as in outside conditions that include inclement weather, heat and humidity. WM has the largest disposal network and collection fleet in North America, is the largest recycler of post‑consumer materials and is a leader in beneficial use of landfill gas, with a growing network of renewable natural gas plants and the most landfill gas‑to‑electricity plants in North America.
Level 1 - Union Diesel Mechanic LyonsLevel 1 - Union Diesel MechanicLyons, IllinoisWe're the largest network of commercial vehicle dealerships in the U.S. With a strong reputation and deep industry roots, we provide our technicians with stability, opportunity, and a supportive work environment. In this entry-level role, you’ll support our lead and journeyman technicians while building hands-on skills in diagnostics, repair, and heavy-duty vehicle maintenance.
Diesel Mechanic Amerit Fleet SolutionsDiesel MechanicAurora, Illinois$22–$44 / hourFull timeTechnicians must be able to perform essential functions that include lifting heavy objects, accessing tight spaces, and bending, stooping, crouching, or crawling as needed to complete repairs. This role involves working in a mobile and or shop environment that may include exposure to dust, diesel fumes, noise, and mechanical irritants such as oils and greases.
Journeyman Diesel Mechanic - Second Shift Interstate CompaniesJourneyman Diesel Mechanic - Second ShiftCarol Stream, IL$30–$47.90 / hourDiagnose and Repair: Troubleshoot complex mechanical, hydraulic, electrical, and electronic systems on heavy-duty diesel trucks using advanced diagnostic tools, schematics, and technical manuals (e.g., Cummins Insite, Detroit Diesel Diagnostic Link). Perform Maintenance: Conduct routine preventive maintenance, including oil changes, filter replacements, tire inspections, brake adjustments, and chassis lubrication to ensure truck reliability and compliance with federal and state regulations.
Journeyman Diesel Mechanic Interstate Companies, Inc.Journeyman Diesel MechanicCarol Stream, ILKey Responsibilities: Diagnose and Repair: Troubleshoot complex mechanical, hydraulic, electrical, and electronic systems on heavy-duty diesel trucks using advanced diagnostic tools, schematics, and technical manuals (e.g., Cummins Insite, Detroit Diesel Diagnostic Link). Perform Maintenance: Conduct routine preventive maintenance, including oil changes, filter replacements, tire inspections, brake adjustments, and chassis lubrication to ensure truck reliability and compliance with federal and state regulations.
Journeyman Diesel Mechanic - Second Shift Interstate Companies, IncJourneyman Diesel Mechanic - Second ShiftCarol Stream, IL$30–$47.90 / hourDiagnose and Repair: Troubleshoot complex mechanical, hydraulic, electrical, and electronic systems on heavy-duty diesel trucks using advanced diagnostic tools, schematics, and technical manuals (e.g., Cummins Insite, Detroit Diesel Diagnostic Link). Perform Maintenance: Conduct routine preventive maintenance, including oil changes, filter replacements, tire inspections, brake adjustments, and chassis lubrication to ensure truck reliability and compliance with federal and state regulations.
Travel Diesel Technician/Mechanic Amerit Fleet SolutionsTravel Diesel Technician/MechanicCHICAGO, Illinois$35–$45 / hourFull timeTechnicians must be able to perform essential functions that include lifting heavy objects, accessing tight spaces, and bending, stooping, crouching, or crawling as needed to complete repairs. This role involves working in a mobile and or shop environment that may include exposure to dust, diesel fumes, noise, and mechanical irritants such as oils and greases.
Diesel & Trailer Technician/Mechanic Amerit Fleet SolutionsDiesel & Trailer Technician/MechanicChicago, Illinois$30–$38 / hourFull timeTechnicians must be able to perform essential functions that include lifting heavy objects, accessing tight spaces, and bending, stooping, crouching, or crawling as needed to complete repairs. This role involves working in a mobile and or shop environment that may include exposure to dust, diesel fumes, noise, and mechanical irritants such as oils and greases.
Diesel Mechanic - 2nd Shift Waste Connections IncDiesel Mechanic - 2nd ShiftElgin, IL$5–$10 / hourCompletes required paperwork utilizing fleet maintenance software program associated with repairing vehicles, documenting parts usage, and accounting for repair times. Our Diesel Mechanic will work directly with the Maintenance Manager to ensure safe diagnostics and repair of our truck fleet and equipment.
Mechanic / Light-Duty Diesel Mechanic Jim's Towing & AutomotiveMechanic / Light-Duty Diesel MechanicElgin, Illinois$18–$40We are seeking a reliable and skilled Mechanic / Light-Duty Diesel Mechanic to inspect, maintain, and repair a variety of gasoline and light-duty diesel vehicles. This role involves diagnosing mechanical issues, performing routine maintenance, and ensuring all vehicles are safe, efficient, and operating at peak performance.
Journeyman Diesel Mechanic - Second Shift Interstate Companies IncJourneyman Diesel Mechanic - Second ShiftCarol Stream, IL$30–$47.90 / hourDiagnose and Repair: Troubleshoot complex mechanical, hydraulic, electrical, and electronic systems on heavy-duty diesel trucks using advanced diagnostic tools, schematics, and technical manuals (e.g., Cummins Insite, Detroit Diesel Diagnostic Link). Perform Maintenance: Conduct routine preventive maintenance, including oil changes, filter replacements, tire inspections, brake adjustments, and chassis lubrication to ensure truck reliability and compliance with federal and state regulations.
Service Technician/Diesel Mechanic JX Enterprises IncService Technician/Diesel Mechanicwadsworth, IL$25–$40 / hourWith a dedication to honoring commitments, creating positive experiences, fostering lifelong learning, exhibiting a pioneering spirit, and demonstrating good stewardship, you will contribute to our mission of providing top-notch service to our customers. Corrects vehicle deficiencies by removing, repairing, adjusting, overhauling, assembling, disassembling, and replacing major assemblies, sub-assemblies, components, or parts, showcasing innovative problem-solving skills and techniques.
NewMobile Diesel Mechanic Rockstar RecruitingMobile Diesel MechanicMelrose Park, IllinoisYou’ll be working on diesel trucks, handling diagnostics, repairs, PMs, electrical, brakes, suspension, and general fleet work. We’re looking for a solid Mobile Diesel Mechanic who knows their way around trucks and fleet equipment and can work without someone holding their hand all day.
Diesel Mechanic Saia IncDiesel MechanicBurr Ridge, IL$33.50–$38.10 / hourRead, write, communicate and comprehend the English language in order to perform the various tasks of the job, including but not limited to: converse with co-workers and members of the general public; understand oral and written instructions as well as governmental regulations; respond to questions and inquiries from management and government representatives; and accurately review and complete various documents, reports and records required of the position. Troubleshoots the repairs of heavy-duty truck engines, braking, electrical, and exhaust systems.
Mobile Diesel Mechanic Epika Fleet Services, Inc.Mobile Diesel MechanicChicago, Illinois$29–$40 / hourFull timePerform repairs and inspections on a variety of Class 6-8 trucks and trailers, such as brakes, diagnostics, A/C systems, electrical systems, engine components, exhaust systems, after-treatment systems, lift-gates, tires, etc. On-Site Truck and Trailer Maintenance and Repairs: Our mobile repair experts come to you, performing all maintenance and repairs at your location and around your schedule.
Diesel Mechanic The Custom Companies IncDiesel MechanicIL$26–$34 / hourOur shop prioritizes safety, quality repairs, and realistic workloads, offering long-term stability, respect for your craft, and opportunities to grow your skills. Location: Northlake, IL 60164 Pay Rate: $26.00 - $34.00 Hourly Open Positions: 1 Days Worked: Mon., Tue., Wed., Thu., Fri., Sat.
Mobile Diesel Mechanic Prestige Fleet ServicesMobile Diesel MechanicChicago, Illinois$29–$36 / hourFull timePerform repairs and inspections on a variety of Class 6-8 trucks and trailers, such as brakes, diagnostics, A/C systems, electrical systems, engine components, exhaust systems, after-treatment systems, lift-gates, tires, etc. On-Site Truck and Trailer Maintenance and Repairs: Our mobile repair experts come to you, performing all maintenance and repairs at your location and around your schedule.
NewDiesel Mechanic Rockstar RecruitingDiesel MechanicChicago, IllinoisThe ideal candidate will be responsible for maintaining and repairing a range of diesel trucks, including tractors/trailers, heavy-duty trucks, step-vans, and pick-up trucks. This job description is intended to outline the general nature and level of work required by employees in this role.
Diesel Mechanic Nature's Trees, Inc.Diesel MechanicNorthbrook, ILA typical day may include: • Performing preventative maintenance and major repairs on fleet vehicles and equipment • Coordinating repairs and maintenance with Managers and field specialists • Reviewing Vehicle Inspection Reports to prioritize work and address issues promptly • Ordering and receiving parts and supplies, completing required paperwork for the office and vendors • Training field specialists on equipment maintenance and safe vehicle operation whenever possible • Maintaining a safe, organized, and efficient work environment in the shop and yard. You bring: • Experience in small engine repair and two-stroke engine maintenance • Diesel engine repair and maintenance experience • Experience operating and maintaining aerial lift (bucket) trucks • Experience with spray equipment, tanks, and pumps • Your own basic tools for engine repair and maintenance • Ability to read and comprehend instruction manuals, diagnostic charts, and troubleshoot mechanical or electrical issues • A valid drivers license (CDL preferred).
Diesel Mechanic A Reyes Holdings LLCDiesel Mechanic ANiles, IL$31–$37 / hourAt the Reyes Family of Businesses, our Total Rewards Strategy prioritizes the holistic well-being of our employees, and our compensation philosophy embraces diverse factors for fair pay decisions, valuing skills, experience, and the needs of our business. This position may require driving Reyes Family of Businesses, Reyes Fleet Management and customer vehicles, it is regulated by the DOT and requires a current driver qualification file to be maintained as required by the role.
Diesel Mechanic B Reyes Holdings LLCDiesel Mechanic BChicago, ILAt the Reyes Family of Businesses, our Total Rewards Strategy prioritizes the holistic well-being of our employees, and our compensation philosophy embraces diverse factors for fair pay decisions, valuing skills, experience, and the needs of our business. This position requires driving Reyes Family of Businesses, Reyes Fleet Management and customer vehicles, it is regulated by the DOT and requires a current driver qualification file to be maintained as required by the role.
Heavy Duty Diesel Mechanic Alliance Ground International companyHeavy Duty Diesel MechanicChicago, ILIdeal candidates will have at least two years of experience with troubleshooting and repair on gas/diesel engines, hydraulic systems, electrical systems, transmission/rear end, basic chassis/brakes, as well as fabrication skills (MIG and Arc welding/cutting). As an AGI Mechanic you will: Provide prompt response to equipment service requests to troubleshoot and repair: vehicles & belt loaders (unleaded, diesel, and propane engines), lavatory service trucks, air conditioner carts, ground power units, and more.
Mobile Diesel Mechanic Rush EnterprisesMobile Diesel MechanicElk Grove Village, IllinoisFull timeDiagnosis, removal and replacement of injectors, pistons, liners, cam shafts, cylinder heads, rod and main bearings, oil pans, clutches, fan hubs, differentials, fifth wheels, brakes, changes or recharges batteries, and replaces transmissions and other parts. Our Mobile Diesel Technicians are responsible for maintaining the fleet for clients and to handle service calls at client locations, so we can provide expedited expertise directly to our customer's trucks & equipment on site.
Diesel Mechanic Technician Ryder System IncDiesel Mechanic TechnicianSt. Charles, ILDemonstrated aptitude and applied experience in mechanical repair of automotive gas or diesel engines including: Routine preventative maintenance, which should include oil changes, brake and tire work. Important Note: Some positions require additional screening that may include employment and education verification; motor vehicle records check and a road test; and/or badging or background requirements of the customer to which you are assigned.
Heavy Duty Diesel Mechanic Supervisor Alliance Ground International companyHeavy Duty Diesel Mechanic SupervisorChicago, IL$29–$30 / hourIdeal candidates will have at least two years of experience with troubleshooting and repair on gas/diesel engines, hydraulic systems, electrical systems, transmission/rear end, basic chassis/brakes, as well as fabrication skills (MIG and Arc welding/cutting). Job Responsibilities: Provide prompt response to equipment service requests to troubleshoot and repair vehicles & belt loaders (unleaded, diesel, and propane engines), lavatory service trucks, air conditioner carts, ground power units and more.
NewDiesel Mechanic Rush EnterprisesDiesel MechanicWillowbrook, ILWith more than 200 locations and nearly 8,000 dedicated employees, Rush Enterprises operates Rush Truck Centersthe largest network of commercial vehicle dealerships in North Americacommitted to delivering exceptional customer service, personalized support, and comprehensive solutions tailored to every fleets needs. + Install injectors, pistons, liners, cam shafts, cylinder heads, rod and main bearings, oil pans, clutches, fan hubs, differentials, fifth wheels, brakes, change or recharge batteries, and replace transmissions and other parts.
Diesel Mechanic First Student IncDiesel MechanicPrairie View, IL$28–$34 / hourIn the state of Washington, all technician and driving positions, including but not limited to van drivers and any other position requiring employees to drive a company-owned vehicle, are considered safety-sensitive and are therefore subject to drug and alcohol testing, including cannabis. Diagnose and perform all phases of vehicle maintenance including the repair of brakes and brake inspections, engine tune-ups, suspensions, drive trains, transmission clutches and other repairs.
Diesel Mechanic Ryder System IncDiesel MechanicILThese could include but are not limited to Service Island support, SBTIII trained within 180 days, SBT220, Complete 2 of the OEM On-Line diagnostic scan tool software courses as required by location, fleet mix, predominant OEM of fleet mix completed within 365 days. In order to become a Ryder employee, you must: Must be able to obtain CDL within 6 months after hire Pass a Ryder Drug Test Pass a DOT physical Pass a Ryder road test Pass a Ryder Background and Motor vehicle check, including Drug and alcohol verification from previous employers for the last 3 years.
Union Diesel Mechanic Rush Enterprises IncUnion Diesel MechanicChicago, ILThe apprentice shall be put on work commonly known as Journeyman Mechanic's work so that at the end of the apprenticeship, the apprentice shall be a qualified Journeyman Mechanic. Benefits: We provide comprehensive benefits and pension packages through the Local 701 Automobile Mechanics Union in accordance with the terms of the 701 Union Agreement.
NewUnion Mobile Diesel Mechanic Rush EnterprisesUnion Mobile Diesel MechanicChicago, ILRepair and maintain customer vehicles, including DOT inspections, lube and oil changes, minor adjustments and minor repairs on tractors, trailers and trucks (component rebuild will be performed in main shop by Journeyman Mechanics). The Union Mobile Diesel Mechanic is responsible for maintaining client vehicles and fleets at client locations and outside the shop; maintaining exceptional customer service.
Diesel Mechanic A Reyes Fleet ManagementDiesel Mechanic AChicago, IllinoisFull timeThis position may require driving Reyes Family of Businesses, Reyes Fleet Management and customer vehicles, it is regulated by the DOT and requires a current driver qualification file to be maintained as required by the role. The Driver Qualification file includes: an annual motor vehicle records (MVR) check, a successfully completed DOT Physical, and Safety Performance History records request from prior employers in the last three years.
Diesel Mechanic B Reyes Fleet ManagementDiesel Mechanic BChicago, IllinoisFull timeThis position requires driving Reyes Family of Businesses, Reyes Fleet Management and customer vehicles, it is regulated by the DOT and requires a current driver qualification file to be maintained as required by the role. The Driver Qualification file includes: an annual motor vehicle records (MVR) check, a successfully completed DOT Physical, and Safety Performance History records request from prior employers in the last three years.
Field Diesel Mechanic - CES United Rentals IncField Diesel Mechanic - CESElk Grove Village, IL$31–$53 / hourAs a Field Diesel Mechanic - Customer Equipment Solutions (Service Tech IV - Field Service - CES), you'll use your skills to perform maintenance and repairs of complex equipment on customer owned equipment with limited or no supervision in a highly skilled, safe, and professional manner. What you'll do: Maintenance and repair of complex mechanical, electrical, hydraulic, and diesel systems on a variety of rental and customer equipment and tools while using a high degree of independent judgment.
NewMobile Diesel Mechanic II - Class C License Cox AutomotiveMobile Diesel Mechanic II - Class C LicenseChicago, IllinoisDiagnose, adjust, and repair various types of truck equipment including, but not limited to the following: Electrical/Brake/Cooling Systems, Starters/Alternators, Air conditioning systems, Fan clutches, Engine electronics, Diesel steering systems, Engines (gas and diesel), Transmissions (manual and automatic), Clutches, Differentials, etc. Perform minor adjustment and repairs on various types of truck equipment including, but not limited to the following: Electrical/Brake/Cooling Systems, Starters/Alternators, Fan clutches, Engine electronics, Diesel steering systems, Engines (gas and diesel), Transmissions (manual and automatic), Clutches, Differentials, etc.
Diesel Tech-Mechanic TravelCenters of America IncDiesel Tech-MechanicZion, ILDriven by a passionate team TA is focused on growing its network of travel centers implementing cutting edge technology and embarking on innovative alternative energy and sustainability initiatives. As a Diesel Technician you will provide accurate efficient service to customers by troubleshooting diagnosing and repairing heavy duty trucks and trailers in a professional and accommodating manner.
Service Technician/Mechanic - GSE/Diesel (Chicago, IL) TCRService Technician/Mechanic - GSE/Diesel (Chicago, IL)Chicago, Illinois$25–$37 / hourWith headquarters near Brussels and a team of 1800+ employees, we operate globally across over 200 airports in America, Europe, Asia Pacific, and the Middle East. TCR North America is growing fast, and we're looking for a skilled and motivated Service Technician/Mechanic – GSE/Diesel to join our Chicago, IL team.
Diesel Mechanic GFL Environmental, IncDiesel MechanicAddison, IllinoisWorking Conditions: Frequently exposed to loud noise, humidity, hot and cold weather conditions, moving mechanical parts, vibration, toxic and caustic chemicals, fumes and airborne particles. Safely operate, repair, rebuild and perform maintenance on Company owned or leased heavy duty diesel trucks and equipment including rolling stock to ensure its ability to operate safely.