DOT car hauling cover image highlighting car hauler compliance checks
admin September 12, 2025 36 min read

DOT Car Hauling Regulations and Compliance for 2025

Learn 2025 DOT car hauling rules. Stay ahead with car hauler compliance tips and car hauling regulations every owner-operator must follow.

Dispatch Republic

DOT Car Hauling Regulations and Compliance for 2025

Imagine rolling up to a busy weigh station with a trailer full of cars. A DOT inspector steps out, eyeing your rig from bumper to bumper. Are your car hauling regulations in check? Is your car hauler compliance up to par? Is your logbook current, every car strapped down, and your paperwork in order? In 2025, enforcement is tougher than ever. One overlooked detail in your DOT car hauling paperwork or a frayed strap could park you on the shoulder – or worse, cost you thousands in fines and destroy your car hauler compliance record.

Staying on top of DOT car hauling compliance is absolutely crucial for car haulers. Whether you’re an owner-operator with an open 3-car wedge trailer or managing a fleet of enclosed 8-car rigs, car hauler compliance can make or break your business. This guide cuts through the confusion and updates you on car hauling regulations every auto carrier needs to know in 2025. We’ll cover the latest federal rules (and some state-level quirks), practical tips to avoid violations, and insider advice to keep your wheels turning and your record clean. By the end, you’ll know exactly how to maintain car hauler compliance with FMCSA regulations and car hauling regulations – from securing your USDOT number to strapping down that last vehicle. And if it feels overwhelming, remember that you can lean on experts like a car hauler dispatch service to help handle some compliance headaches.

Operating Authority and Identification Requirements

Starting a car hauling business isn’t as simple as buying a trailer and hitting the highway – you need the right operating authority. DOT car hauling rules require any for-hire auto transporter crossing state lines to have a registered USDOT number and interstate operating authority. In practice, that means obtaining your USDOT number and MC (Motor Carrier) number through the FMCSA registration process. The USDOT number is a unique identifier that lets authorities track your safety record and compliance. The MC number (historically) has been your license to haul cars commercially across state lines.

Big 2025 update: The FMCSA’s new Unified Registration System (URS) is coming online, and by October 1, 2025, the agency plans to phase out MC numbers entirely. Going forward, your USDOT number will be the sole federal identifier tied to your authority status. New carriers in late 2025 and beyond will receive just a USDOT (with an internal suffix indicating if you’re a carrier, broker, etc.). If you already have an MC number, it won’t vanish overnight, but it will no longer be used in FMCSA’s database for identification. Essentially, the USDOT will be your identification for everything, and operating authority status will be tied to that USDOT profile. Car hauler compliance tip: Start updating your records and branding now. If your trucks or business cards currently display an MC#, shift the focus to your USDOT. (FMCSA noted you can keep showing the old MC number for now, but legally the USDOT is what matters.) Also check internal systems – load boards, insurance forms, dispatch software – for any fields that reference MC numbers, and be ready to use USDOT only. Carriers should begin this transition early to avoid hiccups when car hauling regulations fully switch over to the new system.

To get your authority, you’ll file an application (OP-1 series) with the FMCSA, show proof of insurance, and pay the fee. Once granted, maintaining DOT car hauling compliance means keeping that authority active: update your information biennially (every two years via the MCS-150 form) and ensure you always meet insurance and process agent requirements.

Insurance requirements: Car haulers carry valuable cargo, so insurance minimums are higher than general freight. Federal law mandates at least $750,000 in liability coverage for interstate carriers, but most brokers and shippers will insist on $1 million. You’ll also need cargo insurance to cover the vehicles you’re hauling – often about $100,000 per vehicle or a higher blanket policy (for example, a 3-car hauler might carry $300,000 cargo coverage to protect all three units). Car hauling has higher risk (a single accident could damage multiple high-value cars), so insurance premiums can be steep. It’s wise to shop around specialized trucking insurers and consider using a dispatch service (like us) that can help ensure you meet all certificate requirements for brokers.

Don’t forget state-level filings. Once you have federal authority, you also must register under the Unified Carrier Registration (UCR) program each year (a small fee based on fleet size). If you run in certain states, you may need intrastate operating authority for in-state-only loads (for example, Texas and California have extra requirements for local hauling). All these paperwork steps are fundamental car hauling regulations requirements – staying on top of them keeps your car hauler compliance intact from day one.

Weight, Length, and Overhang Limits for Car Haulers

One area of DOT car hauling regulations that often catches new haulers off guard is size and weight limits. Car carriers have some special allowances, but you must know the rules to use them legally. Here’s the breakdown:

Weight limits: Like all heavy trucks, car haulers are generally limited to 80,000 lbs gross vehicle weight on interstate highways (and most state roads) without an overweight permit. This includes the weight of your tractor, trailer, plus all vehicles loaded. Axle limits are typically 12,000 lbs on the steer axle and 34,000 lbs on each tandem (drive axles and trailer axles). For most auto transporters, hitting 80k gross is rare unless you’re hauling very heavy vehicles (think a trailer full of big SUVs or pickups). However, if you run a wedge trailer with a dually pickup, you might hit axle limits before gross limits – for example, three ¾-ton pickup trucks on a 3-car trailer can overload your trailer axles or the pickup’s rear axle even if you’re under 80k overall. Car hauling regulations demand you distribute weight properly and never exceed your tire, axle, or gross ratings. If you suspect a load might push you over, use a truck scale and reposition or remove vehicles as needed. Overweight fines are steep and can quickly wipe out your profit on a load.

Length and overhang: Car haulers enjoy generous length allowances compared to other trucks, but there are limits. Under federal FMCSA regulations (mirrored by state laws), an “automobile transporter” has specific rules:

  • A conventional tractor-trailer car carrier (fifth wheel over the drives, pulling a high-mount trailer) must be allowed at least 65 feet overall length.
  • A stinger-steered car carrier (fifth wheel on a drop frame behind the tractor’s rear axle, typical for 9-10 car trailers) must be allowed 75 feet overall length. Many states permit more, but they cannot require less than 75 ft for stingers.
  • These length limits exclude overhang. Auto transporters can overhang cargo up to 3 feet in front of the power unit and 4 feet beyond the rear of the trailer. Some states allow even more (e.g. 4’ front/6’ rear is common in practice), but every state has to allow at least 3’/4’. That means a vehicle sticking out past your trailer is fine as long as it’s within those limits.
  • Any extendable “flippers” or loading ramps used to support vehicles in overhang zones don’t count in length, provided they’re retracted when not holding a vehicle. In other words, you can use flip-out extensions to achieve allowable overhangs, just slide them back in empty.

For enclosed trailers, the rules are the same: if both the power unit and trailer are designed to carry automobiles, it doesn’t matter if they are enclosed. (Regulations explicitly permit enclosed auto transporters – being enclosed doesn’t forfeit your special status.) In reality, enclosed car haulers often carry fewer vehicles and rarely need to overhang, but it’s good to know the law doesn’t differentiate.

Overhang safety: Just because you can overhang a car doesn’t mean you shouldn’t mark it. Most states require that any rear overhang beyond 4 feet be indicated with a red flag at least 12” square (during daytime) and a red light at night. If your last vehicle sticks out, strap a flag on its bumper – it’s cheap insurance. Also remember to retract or fold any flip-out extensions when empty so you don’t accidentally violate a length law when you’re not even hauling a load.

If you exceed these length or weight limits, you’re into oversize/overweight territory and will need permits and special routing. This is uncommon for typical car haulers, but if you ever haul an exceptionally long vehicle (say a stretched limo or an RV that overhangs) or you run a stinger setup beyond legal length, check each state’s permit requirements. Running without required permits is a serious violation. The good news is, most standard car haul loads are engineered to fit within legal dimensions when properly configured.

Real-world example: An owner-operator hauling a mix of vehicles once tried to squeeze an extra SUV onto his 4-car trailer, only to get flagged at a Missouri weigh station for being 2,000 lbs overweight on his trailer tandems. He had to unload that SUV and arrange for another truck to take it, losing a day of work.

The lesson? Know your limits. Car hauling regulations on weight and dimensions aren’t just red tape – they prevent costly mistakes. Always check your equipment’s GVWR and GAWR (on the door stickers) and abide by them. A little planning before you depart can save a lot of grief on the road. Ultimately, following these car hauling regulations for size and weight keeps your routes legal and trouble-free, reinforcing your car hauler compliance record.

Hours of Service and ELD Compliance

Long days and late nights might be the norm in car hauling, especially when dealerships or auctions expect quick delivery. But DOT car hauling operations must still obey the Hours of Service limits like any other trucking sector. In general, the federal HOS rules let you drive 11 hours within a 14-hour work day, after which you need a 10-hour off-duty break. You also cannot exceed 60 hours on duty in 7 days (or 70 hours in 8 days) unless you take a 34-hour reset. These rules apply to commercial vehicles over 10,000 lbs GVW in interstate commerce – which includes essentially all car haulers, even those hotshot setups under 26k lbs. (Running under the CDL weight threshold doesn’t exempt you from HOS if you’re for-hire and crossing state lines.) Even “non-CDL” haulers must use logbooks or ELDs if they travel beyond the short-haul radius or work long hours.

Electronic Logging Devices (ELDs): By 2025, virtually all truckers need to use ELDs to record hours electronically. The one big exemption – trucks with pre-2000 model year engines – is ending. The FMCSA announced it will end the pre-2000 engine ELD exemption on June 16, 2025. After that date, all commercial vehicles must use a compliant ELD, regardless of engine age. In other words, starting summer 2025, it won’t matter if your engine is a 1995 model – you’ll need an ELD or risk violation. Paper logs will no longer be accepted for older trucks. If you’ve been running paper logs in a classic rig or glider kit, now’s the time to install an ELD solution that works for older engines (some ELD providers offer GPS-based units for trucks without ECM ports). Otherwise, you could be placed out of service on the spot during a roadside inspection. Enforcement is expected to be strict – 2025 will likely see dedicated audit programs and Roadcheck blitzes focused on electronic log compliance.

For most car haulers, ELDs have been a fact of life since 2017. Make sure yours is on the FMCSA’s approved list and that you know how to use it. A common mistake is not knowing how to transfer ELD logs to an officer or not carrying the required instruction sheet and spare paper logs. Spend a few minutes to learn your device’s inspection mode and keep the info packet in your truck.

HOS tips: Don’t forget the nuances that can help. The 30-minute break after 8 hours of driving can now be satisfied by any non-driving status (on-duty, off-duty, or sleeper berth). And if you run mostly regional, the short-haul exemption lets you skip logs/ELDs on days you stay within a 150 air-mile radius and under 14 hours on duty. Just be careful: if you normally run long-haul and one day use short-haul rules, document that day well (GPS or dispatch records) in case of an audit.

Sticking to HOS limits and using your ELD properly is non-negotiable for car hauler compliance. Fudging logs is far riskier than any reward from squeezing in an extra delivery – especially with electronic logs that automatically record movement. Plan your trips with realistic schedules and communicate with brokers or customers if delays occur. In 2025, HOS violations are one of the most common (and preventable) infractions in DOT car hauling, so mastering these rules is key to everyday car hauler compliance.

Vehicle Equipment and Maintenance Standards

Car hauling equipment is specialized – think head racks, hydraulic upper decks, flip-out extensions, and lots of tie-down points. With all these moving parts, keeping your rig in top shape (and compliant with DOT car hauling regulations) is critical. Preventive maintenance isn’t just about avoiding breakdowns; it’s the law. Every commercial truck and trailer needs an annual DOT inspection by a certified inspector. As a car hauler, you have two units to inspect each year – the tractor and the car carrier trailer. This formal inspection covers brakes, lights, tires, suspension, frame, and more. You should get a sticker or report as proof; keep that in your permit binder.

Pre-trip checks: Experienced drivers know that daily inspections (pre-trip and post-trip) are your best defense against roadside issues. This is doubly true for car haulers because our trailers often have complex hydraulics, multiple decks, and many tires and lights. Take time each morning for a thorough walk-around:

  • Brakes & air system: Check for air leaks, listen for the compressor cutting out properly (governor usually kicks off ~120-130 PSI), and do a brake functionality test. With long trailers, an unnoticed air line leak can spell trouble. Also ensure your breakaway brake system on the trailer (if equipped) is charged and working.
  • Lights & electrical: Have a helper or use reflections to verify all lights are working – tractor and trailer turn signals, brake lights, marker lights, clearance lights, etc. Car hauler trailers have a lot of wiring; any outage is an easy violation. Carry spare bulbs and fuses.
  • Tires & suspension: Measure tire pressure regularly and look for signs of uneven wear (which could indicate alignment or suspension issues). Car carriers can be hard on tires due to scrubbing during tight turns. Also, eyeball your springs, bushings, and shock absorbers for damage or leaks. One sagging corner could mean a broken spring or deflated airbag.
  • Hydraulics & ramps: If your trailer has hydraulically operated decks, inspect hoses and cylinders for leaks or damage. Top off the hydraulic fluid reservoir if needed. Make sure all pins for deck positions are in place and secure. If you use portable loading ramps, examine their attachment points and condition.

If you find any safety defects – like a tire below 2/32” tread, a non-functioning brake, or a cracked leaf spring – do not hit the road until it’s fixed. Operating with a known out-of-service defect is a recipe for a hefty fine (and an accident). A huge part of car hauler compliance is ensuring your equipment would pass a Level I inspection any day of the week.

New tech mandates: Regulators are phasing in new safety tech on trucks, but they don’t impact your existing rig just yet. For instance, automatic emergency braking (AEB) and electronic stability control will be required on new Class 8 tractors by 2027 (thanks to a 2021 infrastructure law). You don’t have to retrofit older trucks with AEB, and you won’t get a ticket for not having it now. But be aware that if you buy a new truck in a few years, it will likely come standard. In the meantime, consider spec’ing safety tech voluntarily – collision mitigation systems, lane departure warnings, dash cams – anything that helps avoid accidents is good for business (and may earn insurance discounts).

Documentation: Keep all your paperwork organized and accessible. This includes your registration, insurance certificates (make sure they meet the $1 million liability requirement), IFTA license and stickers, and annual inspection forms. If you haul across state lines, ensure your IRP apportioned registration is up to date (keep that cab card handy). Nothing irks an inspector more than a driver who can’t find the documents during a stop. A well-organized binder can sometimes even shorten an inspection, as it shows you’re on top of your game.

Preventive maintenance and safety checks are not just good practice – they are required car hauling regulations and critical for car hauler compliance. Staying ahead on maintenance not only keeps you safer, it also means fewer violations. As the saying goes, “take care of your truck, and it will take care of you.”

Cargo Securement: Safely Loading and Strapping Vehicles

Loading vehicles may be routine for you, but never get complacent – improper securement is one of the quickest ways to fail an inspection (or cause a disaster on the highway). Car hauling regulations for cargo securement are strict: the DOT wants to ensure each car you haul stays exactly where you put it. Here’s what to know:

Tie-down requirements: The FMCSA’s cargo securement rules (49 CFR 393, Subpart I) include specific provisions for transporting automobiles. In simple terms:

  • Vehicles under 10,000 lbs:DOT car hauling regulations require at least two tie-downs per vehicle – one securing the front, one the rear. This prevents any forward or rearward movement.
  • Vehicles over 10,000 lbs: These must have at least four tie-downs, essentially one at each corner of the vehicle (same rule as for heavy equipment).

Most professional car haulers secure all four corners of a vehicle, regardless of weight – it’s just good practice. Using over-the-tire straps (wheel nets) that cradle each tire is common on newer trailers; these are gentle on rims and very secure. Older style chains or axle straps are fine for heavier vehicles or rough cargo, but always use designated frame or chassis tie-down points when available. Avoid attaching to bumpers or suspension components that aren’t designed to handle sustained tension.

After securing a vehicle, tighten and re-tighten your straps or chains. It’s smart (and often required) to stop and check your tie-downs after the first 50-100 miles, as things can settle or straps can stretch. If you notice any slack, pull over and snug everything down again. It’s also wise to recheck securement whenever you add or remove cars mid-route.

Special considerations: Unlike a flatbed hauling stacked freight, cars have suspensions – meaning they can bounce slightly on your trailer. Using tire straps allows the vehicle’s suspension to move naturally without coming loose. If you chain down a car by the frame, be aware that its shocks can compress during transport and then loosen your chains when they rebound. Many haulers using chains will actually bounce the vehicle a bit on the trailer to settle the suspension before final tightening. Also, engage parking brakes on the loaded vehicles (if operable) and put automatics in Park or manuals in gear. One loose car rolling on your trailer can spell disaster.

For enclosed trailers, securement rules are the same. Just take extra care with soft straps and padding to avoid any cosmetic damage to high-end vehicles. Inside an enclosed, you might use floor E-tracks or wheel chocks in addition to straps. The goal is the same: the car should be as rock-solid as if it were welded to the trailer floor.

The compliance angle: If a vehicle shifts or falls off, it’s game over – expect immediate out-of-service orders, hefty fines, and potential lawsuits. But even short of such catastrophe, inspectors will scrutinize your securement. They’ll look for frayed straps, improper tie-down angles, insufficient number of straps, or loose chains. Remember, car hauler compliance in cargo securement isn’t just for show – it prevents accidents. In practice, most car haulers use four points (one strap/chain at each corner or each wheel) for extra safety. Use designated tie-down spots on the vehicle if available (many cars have specific slots or loops for transport). If using wheel nets, ensure they’re snug over the tires and not rubbing on brake lines or suspension parts. Recheck your tie-downs after the first 50 miles to ensure nothing has loosened. Always position vehicles to maintain proper tongue weight and axle balance – too much weight on one end of the trailer can affect handling. Proper securement not only prevents damage but also keeps you compliant with safety rules. For example, one key tip is to recheck your tie-downs after 50 miles to ensure nothing has loosened. Being diligent with these steps is simply part of doing business as a car hauler.

For any auto carrier, following cargo securement car hauling regulations to the letter is a non-negotiable part of car hauler compliance – it keeps you safe and on the right side of the law.

Driver Qualifications and Drug Testing Rules

Even with the best truck and trailer, you (and your drivers, if you have any) must meet DOT regulations to stay on the road. This comes down to having the proper licenses, being medically qualified, and staying drug-free per federal law.

CDL requirements: In most cases, a Class A CDL is required to haul cars commercially. Why Class A? Because car hauler rigs are almost always combination vehicles over 26,000 lbs GVWR. For example, a dually pickup (GVWR ~14k) plus a 3-car trailer (~16k GVWR) = ~30k combined – above the CDL threshold. A full-size 7-10 car rig far exceeds it. If your truck-trailer GCWR is over 26,000 lbs, you must have a CDL. There are rare instances of non-CDL auto transport (a very small trailer behind a one-ton staying under the limit), but be extremely cautious: if you even touch 26,001 lbs actual weight, you’re in violation without a CDL. In short, car hauling regulations don’t let you off the hook for being under 26k aside from the license itself – even if you manage a non-CDL setup, all other rules still apply. It’s strongly recommended to obtain a Class A CDL if you’re serious about car hauling; not only for legality, but many load brokers and insurers will only work with CDL drivers.

Medical card: Every driver of a commercial vehicle over 10,000 lbs (interstate) needs a valid DOT medical certificate. This includes non-CDL operators. So even if you’re driving a pickup under CDL weight, you must pass a DOT physical and carry that medical card. The exam checks basic health – vision, hearing, blood pressure, etc. – to ensure you can safely operate. Most healthy drivers get a 2-year card; some conditions might earn you a 1-year or 3-month card (e.g., if blood pressure is high, they’ll want it monitored more frequently). Keep your medical card current and make sure it’s filed with your state licensing agency (for CDL holders). An expired medical card can lead to your CDL being suspended until you renew it. This is part of DOT compliance that often trips up newcomers: staying medically qualified is mandatory.

Drug & alcohol testing: If you have a CDL and operate commercially, you fall under the FMCSA Drug & Alcohol Testing Program. This means:

  • Pre-employment test: You must pass a DOT drug test before starting driving (either under your own authority or an employer’s). Owner-operators have to arrange this themselves as part of getting on the road.
  • Random testing: You (and any drivers in your company) will be subject to random drug/alcohol tests throughout the year. If you’re an owner-operator, you need to join a random testing consortium so that you’re part of a larger pool for random selection. At least 50% of CDL drivers must be tested for drugs each year (10% for alcohol) per DOT rates.
  • Post-accident: If you’re in an accident with certain criteria (fatality, or a tow-away/injury where you might be cited), you must get a post-accident test done within the required timeframe.
  • Reasonable suspicion & return-to-duty: If a supervisor observes signs of impairment, they can require an immediate test. And if a driver ever fails a test or refuses, they must go through a specific return-to-duty process with a Substance Abuse Professional (SAP) and multiple follow-up tests.

In late 2024, a new rule tied the DOT Clearinghouse to CDLs: if a driver has a drug/alcohol violation in the Clearinghouse, state DMV agencies will downgrade their CDL within 60 days. In other words, you can’t just quietly fail a drug test and hope to keep trucking – your license will be temporarily invalid until you complete the return-to-duty steps. Also, starting 2023, states must check the Clearinghouse before issuing or renewing CDLs, to ensure a driver isn’t prohibited. The Clearinghouse is an online database where all positive tests and refusals are recorded. As an owner-op, you have to register and run a query on yourself annually (or have your consortium do it). The bottom line: car hauler compliance on drug testing is taken very seriously. There’s virtually zero tolerance now – and that’s a good thing for safety. Make sure you’re enrolled in a program and stay drug-free. A single violation can sideline your career and will follow you for years in the Clearinghouse.

Driver files & other qualifications: If you run your own authority, you are required to maintain a Driver Qualification File on yourself (and any drivers you hire). This includes your CDL copy, medical card, past employment inquiries, annual driving record (MVR) check, etc. Many owner-operators overlook this “paperwork” aspect of compliance. Keep a folder with these documents; in an audit, FMCSA will ask to see it. Also, ensure you and any drivers carry a valid CDL endorsement for the equipment (you’ll need an Air Brakes endorsement, and if you haul multi-car trailers you already meet Class A). You must be at least 21 to haul interstate. And yes, English proficiency is required by law – officers can and do issue citations if a driver cannot communicate basic information in English.

Being thorough with driver qualification rules and testing is a legal must – these car hauling regulations exist to ensure every driver on your team is fit and safe. Never let this part of your car hauler compliance slide.

Staying Compliant and Preparing for Inspections

Regulations can change, and it seems every year there’s something new. A savvy car hauler stays ahead of the curve. Make it a habit to check industry news or FMCSA announcements for updates affecting auto transport. For example, speed limiter mandates have been proposed (but not yet finalized as of 2025), and emission rules are tightening in some states. If you subscribe to a few trucking newsletters or follow groups on social media, you’ll often hear about rule changes early. Many large industry sites (like FreightWaves or Transport Topics) report on upcoming regulations in plain English – those can be easier to digest than reading government releases. Also consider joining an association like OOIDA, which provides updates and even fights for owner-operator interests in Washington. If you use a professionalcar hauling dispatch service, tap into their knowledge – dispatchers often alert their drivers about new permits or requirements.

Eventually, you will face a DOT inspection – it’s not if, but when. When that day comes, attitude and preparation mean everything. Here are some tips to breeze through:

  • Organize your documents: Keep your CDL, medical card, truck registration, proof of insurance, IFTA and IRP papers, ELD info, and annual inspection forms neatly in a binder or folder. When an officer asks for something, you can hand it over quickly. This sets a positive tone that you’re on top of compliance. Digging around the cab or “not being sure” where something is can invite more scrutiny.
  • Do a quick once-over at the scale: If you get pulled in to a weigh station or see a checkpoint ahead, (safely) double-check a few easy items: put on your headlights and flashers (so they can see all lights work), do a brake check, and glance at your straps and tires. If you catch, say, a trailer light that just went out, mention it to the officer and that you’ll fix it ASAP. Being proactive can sometimes turn a ticket into a warning.
  • Be polite and professional: This goes a long way. Answer questions honestly and don’t argue roadside. If you genuinely believe an officer is mistaken, you can calmly discuss or address it later – but getting combative never ends well. Treat every inspection as a chance to show you’re a serious, safe operator. Often, if they see you’re doing things right, an inspection will be fairly quick.

Finally, consider getting help with compliance. Running a small trucking business means wearing many hats – driver, dispatcher, accountant, mechanic, compliance manager. If keeping up with car hauling regulations is consuming too much time or causing stress, let experts assist. Many top-tier dispatching services (like Dispatch Republic) offer support beyond load booking – we guide carriers on paperwork, IFTA filings, IRP renewals, and more. Partnering with a reliable car hauler dispatch service is like having a back-office team. We’re here 24/7 to help you book high-paying loads, plan efficient routes, and handle the paperwork so you can focus on driving and earning. For example, our team can file your IFTA fuel taxes, manage permits, and organize documents – ensuring car hauler compliance while you drive.

The road to success in car hauling is paved with both opportunity and regulation. Stay informed, stay prepared, and don’t hesitate to leverage tools and partners that keep you on the right side of the law. If you’re looking for an ally in navigating the logistics and DOT car hauling compliance maze, consider reaching out to Dispatch Republic’s car hauler dispatch service. We’ll help keep your trailer loaded, your routes optimized, and your operation DOT car hauling compliant – so you can haul with confidence.

By keeping up with car hauling regulations, you’ll never be caught by surprise – and you’ll keep your car hauler compliance record clean.

Ready to make the most of your trucking business? 🚚💨 Reach out to Dispatch Republic and let our experts help maximize your earnings with tailored hotshot dispatch service and car hauler dispatch service solutions. We’ll handle the logistics while you keep on truckin’. Contact our truck dispatch service to get started on the road to greater profits and less hassle!


For more detailed guides, check Dispatch Republic’s resources on dispatching and the trucking business. Read Hotshot vs Flatbed: Which is Better for Your Business? if you’re weighing career paths, and How to Become a Truck Dispatcher to understand the dispatch side of the business.

If you’re an owner-operator juggling multiple responsibilities, consider partnering with a professional truck dispatch service to take the load off your shoulders—literally. At Dispatch Republic, we specialize in helping carriers run smarter and earn more by expertly managing load boards, negotiating top rates, and handling paperwork for dry vansreefersflatbedsbox trucksstep decks, and even hotshots. Our team monitors multiple premium load boards around the clock, ensuring your truck stays loaded with the right freight, at the right rate, on the right lane. Whether you’re scaling up or just getting started, having a dedicated dispatch team in your corner means fewer empty miles, less stress, and more time to focus on driving and growing your business.

Frequently Asked Questions

What are DOT car hauling regulations in 2025?

DOT car hauling regulations in 2025 cover all the major aspects of operating an auto transport business. This includes having proper operating authority (USDOT number and, until it’s phased out, an MC number) and keeping up with new registration rules. You must follow all FMCSA regulations on safety: Hours of Service limits (and use an ELD to log your hours electronically), regular vehicle maintenance and annual inspections, and driver qualifications (valid CDL, medical card, drug testing program enrollment). Specific car hauling regulations also address your equipment – for example, auto transporters have special length and overhang allowances (3 feet front/4 feet rear). You’re required to secure every vehicle with at least the minimum number of tie-downs (usually 2 or 4 depending on the vehicle’s weight). Essentially, any rule that applies to general trucking (weight limits, DOT compliance inspections, insurance requirements) applies to car haulers plus some extra rules unique to hauling cars. Staying on top of these rules is crucial to avoid fines or out-of-service orders.

How can I maintain car hauler compliance with DOT rules?

Maintaining car hauler compliance comes down to organization and routine. First, ensure all your paperwork is up to date: your CDL and medical card, your vehicle registrations, your insurance filings, and your UCR payment each year. Keep a calendar or checklist for renewal dates (IRP plates, IFTA quarterly taxes, annual DOT inspections, etc.). Next, build good daily habits – do thorough pre-trip and post-trip inspections so you catch issues (like a light out or a worn tire) before an officer does. Follow the Hours of Service rules closely and use your ELD correctly; log violations can hurt your safety score. It’s also wise to perform periodic self-audits: for instance, every few months review your driver logs, maintenance records, and permit expirations to make sure nothing is slipping. Many owner-operators use tools or truck dispatch services that include compliance assistance – for instance, reminding you of upcoming IFTA or inspection due dates – to keep your DOT car hauling operation running legal. By being proactive and detail-oriented, you can ensure your car hauling business stays fully compliant day in and day out.

Do I need a CDL to haul cars, and what regulations apply if I don’t have one?

In almost all cases, yes, you need a CDL (Commercial Driver’s License) to haul cars commercially. Specifically, a Class A CDL is required if your truck and trailer’s combined GVWR exceeds 26,000 lbs, which is true for most multi-car hauler setups. A rare exception might be a very small trailer behind a heavy pickup that stays under 26k combined – in that case you technically wouldn’t need a CDL. However, even without a CDL, DOT regulations still apply for any commercial vehicle over 10,000 lbs. That means you do need a USDOT number, you must follow Hours of Service rules (and use an ELD if required), and your equipment must pass DOT inspections. You’d also need a DOT medical card and have to enroll in a drug testing program, just like CDL drivers. Also, many load brokers won’t work with non-CDL haulers due to insurance and liability concerns. In short, while it’s possible to haul a couple cars without a CDL if you stay under the weight limit, car hauling regulations still hold you to high safety standards. Getting a Class A CDL is highly recommended – it allows you to haul typical 3+ car loads and ensures you’re operating fully within the law.

What are the tie-down requirements under DOT car hauling rules?

DOT car hauling rules require that each vehicle you transport be secured against any movement. For automobiles and light trucks up to 10,000 lbs, you need at least two tie-downs per vehicle – one at the front and one at the rear (attached to the frame or a solid part of the vehicle). This prevents the car from shifting forward or backward. For heavier vehicles over 10,000 lbs, four tie-downs are required (generally one at each corner of the vehicle’s frame or axle). In practice, most car haulers use four straps or chains on every car, even small ones, to be extra safe. The straps or chains must be in good condition (not frayed or damaged) and have sufficient strength (working load limit) to secure the weight of the vehicle. After loading, you should tighten all tie-downs and then re-check them after driving a short distance (50-100 miles) since they can loosen slightly. Proper securement is a big focus in DOT compliance inspections – an officer will check if your cars are snug and won’t budge. So always use the required number of straps (or more) and ensure they’re properly placed and tightened.

Has the ELD exemption for older trucks changed for car haulers?

Yes. The long-standing ELD exemption for trucks with pre-2000 model year engines is ending in 2025. Up until now, if your car hauler had an engine from 1999 or earlier, you could use paper logs instead of an electronic logging device. But FMCSA regulations are closing that loophole. After June 16, 2025, all commercial vehicles that require logbooks must have an ELD – no exceptions for old engines. So if you’re running a classic Peterbilt or an older Freightliner with a 1995 engine, you’ll need to install an ELD to maintain car hauler compliance. There are ELD models designed for older trucks (that connect via GPS and don’t require an ECM), so research those options ahead of the deadline. Aside from that change, all other HOS and ELD rules for car haulers remain the same in 2025, but car hauling regulations now make ELDs truly universal. Running without an ELD (when required) after mid-2025 will be treated just like any other log violation – likely an out-of-service order and fines. So don’t wait; get compliant now so it’s a non-issue when the rule kicks in.

What is happening with MC numbers and USDOT numbers in 2025?

The FMCSA is modernizing its registration system, and part of that is the elimination of MC numbers by October 2025. Rather than issuing a separate MC# for operating authority, the USDOT number will become the primary identifier for carriers (and brokers and freight forwarders)dispatchrepublic.local/. New applicants in late 2025 will only receive a USDOT number (with a suffix in the database indicating the type of authority). Existing carriers won’t lose their authority, but over time you’ll stop using the MC number. Essentially, the MC# is being phased out. This is part of a broader push to simplify registration (the URS or Unified Registration System). What it means for car haulers: you should start using your USDOT number as your main identifier. Ensure it’s on your truck signage as required (USDOT is mandatory to display; MC is not, though many still list it). Check that any systems or load boards you use are updated to use USDOT numbers. And educate your team or dispatchers that after October 1, 2025, brokers or shippers may ask for your USDOT instead of MC number. It’s mostly a paperwork formality, but it’s important to know so you’re not caught off guard by the change. Car hauling regulations in 2025 are embracing this streamlined identifier to reduce confusion. In summary, get used to your USDOT – it’s basically your “authority ID” going forward.

How do I keep up with changing car hauling regulations?

The trucking industry is always evolving, and auto transport is no exception. To stay on top of car hauling regulations, make it a habit to follow a few key sources. Regularly check the FMCSA website or subscribe to their email updates for any official rule changes. Trade publications like FreightWaves, Overdrive, or Transport Topics often explain new regulations in plain language – reading their articles can give you a heads-up on what’s coming. Joining online forums or Facebook groups for truckers (and specifically car haulers) is also useful; drivers frequently discuss upcoming rules or enforcement crackdowns there. Additionally, consider joining an owner-operator association (like OOIDA) which sends out newsletters on regulatory news and offers guidance. If you have a dispatcher or use a truck dispatch service, they can be a great resource too – good dispatchers keep tabs on things like new state laws (emissions, idling, etc.) or changes like the ELD mandate, and they’ll remind their carriers. Staying informed is an ongoing task – regulations can change year to year – but it’s part of being a professional trucker. By keeping up with car hauling regulations, you’ll never be caught by surprise – and you’ll keep your car hauler compliance record clean.

What are common mistakes that break car hauler compliance?

Some frequent issues that hurt car hauler compliance include skipping regular vehicle inspections (leading to unnoticed maintenance problems), running overweight (ignoring axle/gross limits or not scaling when near the limit), failing to secure all cargo properly (even one loose car or missing strap is a violation), and neglecting driver paperwork like medical cards or logbooks. Even small lapses – like an expired IFTA sticker, missing fire extinguisher, or forgetting to log a few hours – can put you out of service during a roadside inspection. Another common mistake is not staying updated on rule changes (for example, not realizing an ELD exemption ended or a state law changed). To stay compliant, double-check your DOT car hauling paperwork and equipment regularly, and fix issues before an inspector finds them. Every little step counts toward full car hauler compliance.

How do I choose the right car hauler dispatch service?

If you decide to use a professional car hauler dispatch service, look for a company that has experience specifically with car hauling (not just general freight). The right dispatch service will have knowledgeable dispatchers who understand the timing of auctions and dealership deliveries, and who know how to find high-paying vehicle loads that fit your equipment. Make sure the service is transparent about their fees and offers the kind of support you need – whether it’s simply finding loads or also handling paperwork and appointments. Ideally, you want a car hauler dispatch service that acts like a partner in your business, keeping your best interests in mind (good rates, efficient routes, avoiding problem brokers, etc.). It’s also wise to read reviews or get recommendations from other car haulers. A great dispatch service can significantly reduce your stress and downtime. For many drivers, the right car hauler dispatch service becomes the backbone of their business, directly boosting profitability by ensuring you stay loaded and can focus on safe driving.


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