Commercial Truck Tire Repair Tools: Shop and Roadside Guide

By Michael Nielsen, Editor & Publisher | 15+ Years in Diesel Repair

Last Updated: April 2025

📖 Estimated reading time: 17 minutes

A flat on a loaded 80,000-pound rig at 2 a.m. and a drive tire blowing at highway speed are two very different problems — but both live or die by the same question: do you have the right tools available for the situation in front of you? Commercial truck tire repair tools span two distinct operating environments: the controlled conditions of a maintenance shop and the unpredictable reality of the roadside. Fleet managers who treat those two environments with a single, undifferentiated approach to tool procurement end up with shops stocked for roadside emergencies and trucks carrying gear too heavy to be useful. This guide draws a hard line between those two worlds, then connects your tool selection directly to the regulatory requirements that determine whether your operation stays rolling — or gets parked by a CVSA inspector.

The regulatory stakes have sharpened heading into 2025. Updated out-of-service criteria from the Commercial Vehicle Safety Alliance now treat tire pressure leaks differently depending on whether automatic tire inflation systems are present, and the longstanding distinction between radial and bias-ply OOS conditions has been eliminated. These are not minor clarifications — they change how inspection-ready your tire pressure monitoring tools need to be and whether a slow leak that once passed a roadside inspection now grounds your vehicle on the spot.

The Regulatory Foundation for Commercial Truck Tire Repair

Before you specify a single tool, understand the legal baseline your repairs have to satisfy. The Federal Motor Carrier Safety Administration codifies minimum tire condition standards under 49 CFR 393.75, which defines what constitutes an operable tire for commercial motor vehicles in interstate commerce. The requirements cover exposed body ply or belt material, tread depth minimums, load rating compliance, inflation pressure, and prohibited tire types for specific axle positions.

The tread depth minimums are the numbers every tech and driver needs to know cold. Steer tires — the front axle of buses, trucks, and truck tractors — must have at least 4/32 inch of tread depth measured at any point on a major tread groove. Drive tires and trailer tires must maintain a minimum of 2/32 inch. These measurements are not made at tie bars, humps, or fillets. Any tire operating below these depths, or showing exposed cord or belt material through the tread or sidewall, triggers an immediate out-of-service order. A violation under 393.75(a)(3) — flat or audible leak — is among the most frequently cited tire violations in commercial vehicle enforcement and carries 8 CSA BASIC points per occurrence.

OSHA adds a separate layer of requirements specifically for shop environments. Under 29 CFR 1910.177, OSHA mandates specific safety protocols for servicing multi-piece and single-piece rim wheels, including mandatory use of restraining devices during inflation, required demounting procedures, and strict limits on who can perform rim assembly work without training. Shop managers who stock tire service tools without accounting for OSHA compliance in their procedures expose their operations to federal workplace safety citations that are entirely separate from FMCSA enforcement.

The repair category a tire falls into also has regulatory implications. Industry standards — adopted by tire manufacturers, retread processors, and repair facilities — recognize a defined repairable zone limited to the crown and tread area, generally measured as no closer than one inch from the shoulder break. Sidewall damage, including any separation, delamination, or cut reaching belt material, mandates tire replacement. No tool in your shop changes that — the tool selection question only applies to damage that falls within the repairable zone.

Shop-Grade Commercial Truck Tire Repair Tools

A properly equipped heavy-duty tire shop handles everything from steer tire swaps to drive axle retread mounting to structural puncture repairs. The tools required for that work are purpose-built for commercial tire sizes, load ratings, and the physical demands of handling tires that can exceed 200 pounds per unit. This is not equipment you improvise.

Tire Mounting and Demounting Equipment

Commercial truck tires require dedicated mounting machines or manual demounting tools engineered for rim diameters that range from 17.5 to 24.5 inches in most fleet applications, with agricultural and specialty vocational applications going larger. Powered truck tire changers — available in semi-automatic and fully automatic configurations — use reinforced bead breaker arms and mounting assist systems designed for the stiff sidewalls and high-pressure beads of radial truck tires. For high-volume shop environments, a powered unit dramatically reduces tech fatigue and the risk of mounting injuries compared to manual methods.

Manual bead breaker tools remain essential even in shops with powered equipment. A quality steel bead breaker bar provides the leverage needed to free a bead that has fused to a rim flange after extended service, and it serves as a backup when the powered unit is occupied or unavailable. For roadside tire service trucks, a portable hydraulic bead breaker is the standard choice — these units mount to the tire without requiring it to be removed from the vehicle and use hydraulic ram pressure to break the bead cleanly without rim damage.

Vulcanizing and Patch Application Tools

Permanent tire repair in a shop setting follows a defined process: identify the injury, remove the tire for internal inspection, prepare the injury area, apply a patch-plug combination, and vulcanize the repair. Each step requires dedicated tooling. Spot cure vulcanizing units — electric presses that apply controlled heat and pressure to the patch area — are the standard for shop permanent repairs. The vulcanizing process bonds the patch rubber to the inner liner through heat-activated adhesion, creating a repair that restores the tire’s ability to carry its rated load. Cold cure systems, which rely on chemical vulcanization at ambient temperature, are slower and used primarily in facilities without access to reliable electric power.

Patch-plug combination units, sometimes called combo repairs or injury repairs, are the only repair type that simultaneously seals the inner liner and fills the injury channel through the carcass. These are commercially available in truck-specific sizes from tire repair materials manufacturers. The patch component spans the inner liner across the injury, while the plug fills the bore and prevents moisture from migrating into the carcass. Using a patch alone — without filling the injury channel — leaves a pathway for water intrusion that degrades the carcass steel over time.

Buffing and Surface Preparation Tools

No patch bonds reliably to an unprepared surface. Shop buffing equipment removes the inner liner’s release coating and contaminants from the injury area, creating the roughened surface texture that vulcanizing cement and patch adhesives require. Power buffing machines are the standard in production tire shops — these use carbide or wire wheel attachments calibrated to remove material without generating excessive heat that could damage surrounding rubber. For injury channel preparation, carbide cutters and tapered buffing bits clean the bore to the correct geometry for the plug component of a combo repair.

Tire repair cement or vulcanizing fluid is applied to the buffed surface before patch placement. The specific cement or adhesive should be compatible with the patch manufacturer’s materials — mixing product lines from different manufacturers introduces variability in cure chemistry that can lead to patch delamination under load. Always follow the patch manufacturer’s coverage and dwell time specifications before applying the patch and pressing.

Stitching Tools

After patch placement, air pockets between the patch and the prepared surface must be eliminated before vulcanization. Tire stitching rollers — narrow metal wheels mounted on handles — are worked systematically from the center of the patch outward, pressing the patch flat against the inner liner and driving out any trapped air. Inadequate stitching is one of the most common causes of patch edge lifts and premature repair failures in commercial tire shop work. This is a hands-on step that cannot be rushed, and the tool investment is minimal relative to the cost of a failed repair.

Tire Balancing Equipment

Commercial truck tire balancing uses heavy-duty wheel balancers designed for the weight and diameter ranges of truck and trailer assemblies. Road-force balancers apply simulated load during the measurement cycle to identify balance and uniformity issues that static balancing cannot detect. For drive axles running duals, both tires should be match-mounted — a process of aligning the high-force variation point of each tire with the low-force variation point of the other to minimize the combined uniformity effect. Proper match-mounting reduces vibration, irregular wear, and stress on wheel end components.

Shop Air Systems and Inflation Tools

Commercial tire inflation in a shop setting runs through a dedicated air supply capable of sustaining high-volume fill for large tire volumes. Steer tires on a typical Class 8 tractor may run 110–130 PSI cold; drive and trailer tires typically run 95–110 PSI depending on load rating. Shop compressors need sufficient capacity — measured in CFM at the working pressure — to keep up with demand across multiple bays. Inline gauges at each tire inflation station should be calibrated regularly against a known reference gauge. An uncalibrated inflation gauge that reads 5 PSI high means you’re systematically underinflating every tire you service.

Roadside Commercial Truck Tire Repair Tool Essentials

Roadside tire repair tools serve a fundamentally different purpose than shop equipment. The goal is not to perform a permanent, load-rated repair — it is to stabilize the tire safely and get the vehicle to a location where permanent repair can be performed. Every tool decision for the roadside kit should be evaluated against that objective. Tools that cannot be operated by one person in a highway shoulder environment, that require more than minimal setup time, or that weigh more than the situation calls for, reduce the kit’s real-world utility.

Portable Tire Plug and Patch Kits

Commercial truck tire plug kits for roadside use are not the same product as the light-duty plug kits sold for passenger vehicle roadside emergencies. Truck-specific kits use heavier gauge plug strips designed for the thicker tread rubber of commercial tires, larger insertion needles, and reamer tools capable of cleaning a bore through heavy-duty carcass material. The needle insertion tool — typically a T-handle or pistol-grip design — must be robust enough to push a plug through the full depth of a commercial tread without bending or breaking.

A complete roadside plug kit for a commercial operator should include: a spiral-wound rasp or reamer for bore preparation, a T-handle or push-through needle insertion tool, a sufficient supply of commercial-grade plug strings (brown or gray rubber strings of appropriate gauge for truck tires), a knife or flush trimmer for trimming the protruding plug ends, and rubber cement compatible with the plug material. Some operators also carry a rubber mallet for driving the insertion tool through particularly stiff tread compounds. These kits are designed to be single-person operable and sized to store in a standard toolbox or underseat compartment.

Portable Air Compressors

Re-inflating a commercial truck tire after a plug repair requires a compressor capable of reaching and sustaining high pressure output — typically 125 PSI or higher for most steer and drive tire applications. Standard 12-volt passenger car tire inflators cannot meet this requirement; commercial truck operators need either a dedicated 12-volt truck-rated compressor, a portable 120/240-volt unit powered from a generator, or a CO2 or nitrogen tank setup. The compressor’s duty cycle matters as much as its peak PSI rating — a unit that reaches 125 PSI but overheats after 60 seconds of continuous run is not adequate for filling a commercial tire from near-flat.

For owner-operators equipping a cab or toolbox, 12-volt compressors rated for commercial tire use are available in the 150–200 PSI range with metal pump heads designed for sustained operation. These units typically use the vehicle’s cigarette lighter or a direct battery connection, and the better units include an automatic shutoff at a preset pressure. For fleet service trucks making roadside calls, a truck-mounted compressor drawing from the service vehicle’s air system is the most practical solution — these tap into the existing air supply and deliver consistent pressure without any warm-up time.

Tire Pressure Gauges

A calibrated tire pressure gauge is the single most important tire maintenance tool a driver can carry, and it is required equipment for pre-trip inspections. The gauge you carry on a revenue service truck needs to be accurate to within 2–3 PSI across the full operating range of your tire applications. Stick gauges are inexpensive but prone to inaccuracy under road conditions. Digital gauges with backlit displays provide better readability in low-light conditions and maintain calibration better than stick types under rough handling. Dial gauges are the preference for shop applications where durability and readability in dirty environments matter.

For dual-tire axles, a dual-foot chuck allows pressure checking on the inner dual without removing the valve cap and struggling to access the valve stem between tires. This is not an optional convenience — it is a practical requirement for completing thorough pre-trip inspections efficiently. Valve stem extensions on inner dual positions are another common solution, but they introduce a potential leak point that needs to be inspected regularly.

Lug Wrenches, Torque Tools, and Impact Equipment

Changing a damaged tire on a Class 8 truck requires removing wheel fasteners that are typically torqued to 450–500 ft-lb on a standard 10-stud hub. A manual breaker bar with the appropriate socket is the minimum capability for a roadside wheel removal, but it requires significant physical effort on corroded or overtightened fasteners. A cordless or pneumatic impact wrench rated for heavy truck lug nut removal dramatically reduces the time and effort required. For roadside service, a cordless 1-inch drive impact wrench with a high-capacity battery provides the best combination of power and cord-free operation.

Equally important is the torque wrench or torque stick used for reinstallation. Undertorqued fasteners lead to wheel separations — one of the most dangerous outcomes in commercial vehicle operation. Overtorqued fasteners stretch or crack studs. Every spare tire or wheel swap performed at the roadside should use a torque wrench or calibrated torque stick to achieve the manufacturer’s specified fastener torque before the vehicle returns to service. This is not optional regardless of time pressure.

Safety and Visibility Equipment

Roadside tire work on a highway shoulder is a hazardous environment by definition. Federal regulations under FMCSA Part 392 require placement of warning triangles or flares when a vehicle is stopped on a roadway or its shoulder. The practical standard for roadside tire repair should include at minimum: three reflective triangles or LED safety flares placed at 10 feet, 100 feet, and 200 feet from the rear of the vehicle; a high-visibility safety vest worn throughout the repair; and a wheel chock to prevent vehicle movement. Working under or near a commercial truck on a highway shoulder without these precautions in place is not a risk worth taking.

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Temporary vs. Permanent Repairs: Understanding the Critical Distinction

No aspect of commercial tire repair causes more operational confusion — or more compliance risk — than the line between a temporary roadside fix and a permanent shop repair. Understanding that distinction is not just best practice; it directly affects how you categorize your tools, how you train your drivers, and how you explain your maintenance decisions during a CSA audit.

A temporary repair seals the air leak and stabilizes the tire sufficiently to move the vehicle safely to a qualified repair facility. An external plug — driven through the tread into the bore of a puncture — is a temporary repair. A can of tire sealant inflated through the valve stem is a temporary measure. These approaches work as recovery tools, not as in-service fixes. A plugged tire that goes back into full-load highway service without an internal inspection and permanent repair has not been properly repaired under industry standards — it has been temporarily stabilized and is operating on borrowed time.

A permanent repair removes the tire, inspects the carcass from the inside, confirms the damage is within the repairable zone, prepares the injury area, and applies an internal patch-plug combination that is vulcanized to the inner liner. This is the only repair type that restores the tire’s ability to carry its rated load for continued commercial service. The repair must be performed by a qualified technician using proper equipment, and the tire must be returned to service only after the technician confirms the injury is within the repairable zone and no structural damage is present in the carcass.

For fleet managers building maintenance protocols, this distinction needs to be communicated clearly and enforced consistently. Drivers who plug a tire and put it back into full-load service without informing dispatch or scheduling a shop inspection are not cutting corners — they may not understand that they are operating a temporarily stabilized tire as if it were a permanently repaired one. The training gap is real, and closing it starts with connecting tool purpose to repair category. When a driver knows that a plug kit is a “get to the shop” tool and not a “fix the problem” tool, the protocol becomes intuitive rather than something to remember from a safety briefing.

2025 CVSA Tire OOS Updates and Their Impact on Tool Requirements

The CVSA’s 2025 North American Standard Out-of-Service Criteria, effective April 1, 2025, made specific and consequential changes to tire-related OOS conditions that fleet managers need to build into their inspection protocols and driver equipment requirements. These are not theoretical regulatory changes — they are pass-fail standards that inspectors are applying during roadside checks right now.

The most operationally significant change involves tires with leaks in the tread area and the role of automatic tire inflation systems (ATIS). Under the 2025 criteria, a tire with a noticeable tread-area leak is an immediate out-of-service condition if the vehicle is not equipped with an ATIS. If an ATIS is present and the system is maintaining pressure, the condition is a violation but not an OOS event — unless the system cannot maintain pressure above 50% of maximum sidewall pressure, at which point OOS status applies regardless. The practical implication: drivers operating vehicles without ATIS need to understand that a slow tread leak observed during a pre-trip inspection cannot be driven on. It is now a vehicle-grounding condition at a roadside inspection.

Separately, the 2025 criteria eliminated the previous distinction between radial and bias-ply tire OOS conditions, consolidating them into a single unified standard. This simplifies enforcement for inspectors but means that any operator with older bias-ply equipped trailers or specialty vocational vehicles needs to verify their inspection checklist reflects the new unified criteria rather than the legacy dual-standard approach. The content of what triggers an OOS condition did not fundamentally change — the structure of how inspectors document it did.

Any tire with a sidewall leak — regardless of leak rate and regardless of whether ATIS is present — is an automatic OOS condition under the 2025 criteria. Sidewall structural integrity is non-negotiable, and the criteria reflect that. This reinforces why sidewall damage belongs exclusively in the replacement category and why carrying roadside repair tools should never create the impression that sidewall issues can be addressed in the field.

Fleet managers should review the CVSA’s out-of-service criteria reference directly and ensure their driver training materials reflect the 2025 updates. Given that tires were identified as a primary inspection focus during 2025 International Roadcheck planning, the enforcement emphasis on these updated criteria is not theoretical.

Building a Tire Tool Inventory by Operation Type

The right tool inventory for tire repair depends on the scale of your operation, the environments your vehicles run in, and whether your organization performs its own shop repairs or relies on outside service. A single owner-operator running a regional route has different requirements than a fleet maintenance manager overseeing a shop with five bays. Getting the inventory right — not over-specified or under-equipped — requires thinking through those variables deliberately.

Owner-Operator Essentials

An owner-operator’s tire repair capability is appropriately limited to roadside stabilization and safe transit to a qualified repair facility. The full roadside kit for an owner-operator running a Class 8 tractor-trailer should include a calibrated digital tire pressure gauge, a commercial-grade plug kit with a T-handle insertion tool and adequate plug supply, a portable 12-volt compressor rated for commercial tire pressure ranges, a torque wrench or torque stick sized for your wheel fasteners, a 1-inch or 3/4-inch breaker bar for lug nut loosening, safety triangles (minimum 3), a high-visibility vest, wheel chocks, and a quality flashlight or headlamp for nighttime work.

Beyond the immediate repair kit, an owner-operator should establish a relationship with a roadside tire service provider or national network before a breakdown occurs. Knowing who to call and having the number saved in your phone eliminates the delay of searching for assistance while a load sits on a highway shoulder. The National Truck & Trailer Repair Directory is one resource for locating qualified repair facilities and mobile service providers by region.

Small Fleet Requirements (5–25 Units)

A small fleet typically operates a hybrid model: driver-level roadside tools on every truck, supplemented by a limited shop capability at the terminal or yard. At this scale, investing in a quality bead breaker, a wheel balancer capable of handling truck and trailer assemblies, an electric vulcanizing press for permanent patch repairs, and a proper shop compressor with an inflation cage creates the ability to handle routine repairs in-house rather than trucking every flat to an outside shop. The capital cost of this equipment is recoverable within a single operating year for a fleet that manages tire repair costs carefully.

For small fleets, annual inspection compliance under 49 CFR 396.17 creates a documentation requirement that extends to tire condition. Annual inspection records must be retained for 14 months and cover tire condition as a mandatory inspection item. Integrating a tread depth measurement log into your annual inspection process — using a calibrated tread depth gauge and recording measurements by axle position — provides both the operational insight to manage tire replacement timing and the documentation to support your compliance standing during an audit.

Fleet Shop and Large Operation Requirements

A fleet maintenance shop handling 50 or more units requires commercial-grade equipment across all tire service categories. The basic complement for a four-to-six bay operation includes: a powered truck tire changer for both standard truck wheels and super-single applications, at least one heavy-duty wheel balancer, a stand-alone bead breaker for manual assistance, a vulcanizing press, a buffing machine with appropriate wheel attachments, a carbide cutter set, an inflation cage capable of handling the largest rim assembly in your fleet, a multi-position air chuck and dual-foot chuck set for inflation work, a torque wrench calibration program for all fastener torque tools used in tire service, and a dedicated tire spreader for internal injury inspections.

Large shops also benefit from a tire inventory management system that tracks each tire by its DOT serial number, records repairs, and monitors position history and mileage accumulation. This is not tire repair tooling per se, but it is the data infrastructure that makes tire repair decisions — repair versus replace, rotation timing, mileage-based replacement thresholds — defensible and consistent across your technician team.

Tire Inspection Tools and Compliance Documentation

Tire inspection tools are as important to fleet compliance as repair tools are to fixing damage. The ability to detect a problem before it becomes a roadside violation — or a catastrophic failure — is the practical value of a systematic inspection program supported by the right instruments.

Tread depth gauges are the fundamental inspection instrument. A quality metal-body dial gauge or digital gauge with a 0–25mm measurement range covers the full spectrum of commercial truck tire tread depths from new to well-worn. The gauge probe needs to reach into major tread grooves without rocking, and the measurement should be taken at the shallowest point in each groove rather than the deepest. Digital gauges with memory storage allow technicians to document tread depth readings by position during inspections, creating a historical record of wear progression that supports replacement timing decisions.

Tire probes and pick tools are used to inspect tread area injuries and detect embedded objects — screws, nails, glass, metal fragments — that have not yet caused a perceptible leak. A systematic probe inspection of each tire’s tread surface during every scheduled PM service catches embedded objects before they migrate deeper into the carcass. Removing a nail from a tire that hasn’t lost pressure is a five-minute shop repair. Dealing with the same nail after it works its way through and causes a roadside flat is a several-hour ordeal with significantly higher total cost.

Tire pressure monitoring records should be part of every fleet’s formal maintenance documentation. Drivers complete pre-trip inspections under the daily vehicle inspection report requirements at 49 CFR Parts 396.11 and 396.13, and tire condition is a mandatory element. Pressure readings taken at pre-trip with a calibrated gauge and noted on the DVIR provide a documented chain of custody for tire condition that protects the carrier during post-accident investigations and FMCSA compliance reviews. Fleets using electronic DVIR systems should ensure their tire inspection fields capture both qualitative condition notes and quantitative pressure readings rather than simple pass/fail checkboxes.

Frequently Asked Questions

What commercial truck tire repair tools should every owner-operator carry?

Every owner-operator should carry a calibrated tire pressure gauge, a quality plug-and-patch kit for temporary roadside sealing, a portable air compressor capable of reaching at least 125 PSI, a heavy-duty lug wrench or breaker bar, a torque stick or torque wrench rated for your wheel fasteners, safety triangles and a high-visibility vest, and a tire tread depth gauge. These tools cover the most common roadside scenarios — slow leaks, minor tread punctures, and pressure management — and help you stay in compliance with pre-trip inspection requirements. They do not replace the need for a professional shop repair for any structural or sidewall damage.

Can a commercial truck tire be plugged and legally driven on the highway?

An external plug is a temporary repair measure only and is not considered a permanent fix under industry standards. The Tire Industry Association and commercial tire repair standards require that any permanent repair use an internal patch-plug combination, properly vulcanized from inside the tire. Operating on a plug alone may not immediately violate a specific federal statute, but if the tire fails inspection or is found to have exposed belt material, you face an out-of-service order under 49 CFR 393.75. Best practice: use a plug to get the vehicle to a qualified shop safely, then have a certified technician perform an internal inspection and permanent patch repair before returning to revenue service.

What is the minimum tread depth required for commercial truck tires?

Under 49 CFR 393.75, steer tires on commercial motor vehicles must have at least 4/32 inch of tread depth measured at any point on a major tread groove. Drive tires and trailer tires must maintain a minimum of 2/32 inch. Tires that fall below these thresholds, or show body ply or belt material exposed through tread or sidewall, are immediate out-of-service violations. CVSA inspectors apply these federal standards during roadside inspections, and any violation can result in 8 CSA BASIC points per occurrence in addition to halting operations until the condition is corrected.

What tools are needed to perform a permanent tire repair in a shop?

A proper permanent commercial tire repair requires: a tire spreader or bead breaker to dismount the tire, a buffing machine or carbide cutter to prepare the injury area, a vulcanizing press or spot curing unit to bond the patch, an appropriate patch-plug combination sized for commercial truck tires, tire repair cement compatible with the patch material, a stitching tool to eliminate air pockets under the patch, a tread depth gauge and probe to inspect the injury, and an inflation cage for safe re-inflation. OSHA 29 CFR 1910.177 governs safe servicing procedures for multi-piece and single-piece rim wheels in shop environments, and compliance with those safety protocols is required.

How do the 2025 CVSA out-of-service criteria changes affect tire inspection requirements?

Effective April 1, 2025, CVSA updated its North American Standard Out-of-Service Criteria with important tire-related changes. Tires with a noticeable leak in the tread area are now placed out of service if the vehicle lacks an automatic tire inflation system. Any tire with a sidewall leak is an automatic out-of-service condition regardless of whether ATIS is present. The previous separate criteria for radial and bias-ply tires were consolidated into a single unified standard. These changes make calibrated tire pressure gauges and regular pre-trip pressure checks more critical than ever. Fleets should ensure technicians understand the ATIS interaction rules and that drivers carry functional pressure-monitoring tools on every run.

The right commercial truck tire repair tools are ultimately a decision about what level of capability — and what level of risk — your operation can afford in each environment. A roadside kit that can safely stabilize a tire and move a loaded vehicle to qualified help is the minimum acceptable standard for any commercial driver. A shop equipped to perform permanent, inspection-ready repairs in-house creates the compliance and cost control that keeps a fleet competitive over the long haul. The 2025 CVSA updates have removed some of the gray area that allowed operators to defer pressure management problems — tires now need to be in compliance before they leave the yard, and the tools to verify and maintain that compliance need to be part of every operation’s standard equipment, not an afterthought.