CDL Requirements: How to Get a Commercial Driver's License (2026)

Getting a CDL wrong costs more than the application fee. Apply with the wrong class, skip an endorsement your employer requires, or let your medical card lapse, and you are looking at weeks of delays, retesting fees, and lost income. According to the [Bureau of Labor Statistics](https://www.bls.gov/ooh/transportation-and-material-moving/heavy-and-tractor-trailer-truck-drivers.htm), there were over 2.1 million heavy and tractor-trailer truck drivers in the US as of 2024, and every one of them had to navigate this process.

The CDL requirements themselves are not wildly complicated, but they layer on top of each other in ways that trip people up. Federal rules set the floor. States add their own testing procedures, fees, and waiting periods. The ELDT rule that took effect in February 2022 changed how new drivers qualify for training. Endorsements each have their own written tests, and the hazmat endorsement adds a TSA background check that takes weeks.

This guide covers every CDL requirement currently in effect: the three CDL classes, age and medical requirements, all six endorsements, the testing process, ELDT training rules, costs, state-level differences, and what fleet managers need to verify before putting a new hire behind the wheel.

What is a CDL and who needs one?

A commercial driver's license (CDL) is a specialized license required by federal law to operate commercial motor vehicles (CMVs) in the United States. The CDL program was established by the [Commercial Motor Vehicle Safety Act of 1986](https://www.fmcsa.dot.gov/registration/commercial-drivers-license) and is regulated under [49 CFR Part 383](https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-383), administered by the FMCSA and enforced through state DMV offices.

You need a CDL if you operate any of these vehicle types: a single vehicle with a gross vehicle weight rating (GVWR) over 26,001 lbs, a combination vehicle where the towed unit has a GVWR over 10,000 lbs and the combined weight exceeds 26,001 lbs, a vehicle designed to transport 16 or more passengers including the driver, or any vehicle carrying hazardous materials requiring a placard under 49 CFR Part 172.

Federal CDL requirements under 49 CFR Part 383

The federal CDL standard under [49 CFR Part 383](https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-383) requires every state to issue CDLs according to minimum federal standards. A driver can only hold one CDL, and it must be issued by the driver's state of domicile. The one-license rule prevents drivers from holding licenses in multiple states to hide violations.

Federal requirements mandate that CDL holders pass both a knowledge (written) test and a skills (driving) test for their license class. Drivers must also self-certify their type of driving operation and maintain a valid medical examiner's certificate if they drive in interstate or intrastate non-exempt commerce. States cannot issue a CDL to anyone who has been disqualified by the FMCSA or another state.

Which vehicles require a commercial driver's license?

The vehicle threshold is based on GVWR, not actual loaded weight. A truck rated at 28,000 lbs GVWR requires a CDL even if it is running empty. This catches fleet managers who assume a lightly loaded vehicle does not count. The FMCSA is clear: the manufacturer's GVWR rating on the door sticker determines the requirement, not what is on the scale.

There are limited federal exemptions. Military vehicle operators, farmers operating within 150 air miles of the farm, firefighters, and certain emergency response drivers are exempt from CDL requirements. However, these exemptions have strict boundaries. A farmer hauling grain 200 miles to a terminal elevator no longer qualifies for the farm exemption and needs a CDL.

CDL classes explained: Class A vs Class B vs Class C

There are three CDL classes, and the one you need depends on the vehicle you will drive and what you will tow. Picking the wrong class is one of the most common mistakes new CDL applicants make. A Class B will not let you drive an 18-wheeler, and getting a Class A when you only need a Class B means a harder skills test with no practical benefit. Here is how they break down.

Class A CDL — combination vehicles over 26,001 lbs

A Class A CDL authorizes you to operate any combination of vehicles with a gross combination weight rating (GCWR) of 26,001 lbs or more, provided the towed vehicle has a GVWR exceeding 10,000 lbs. This is the license that covers 18-wheelers, tractor-trailers, flatbeds, tanker rigs, and most over-the-road freight.

Class A is also the most versatile CDL. According to [FMCSA regulations](https://www.fmcsa.dot.gov/registration/commercial-drivers-license/drivers), a Class A license holder can operate vehicles that would otherwise require a Class B or Class C CDL, with appropriate endorsements. That is why most CDL training programs default to Class A. If you are unsure which class you will need down the road, Class A keeps the most doors open.

Class B CDL — single vehicles over 26,001 lbs

A Class B CDL covers single vehicles with a GVWR of 26,001 lbs or more, or any such vehicle towing a trailer that does not exceed 10,000 lbs GVWR. Think straight trucks, large buses, segmented buses, dump trucks, box trucks, and concrete mixers. If you are towing anything over 10,000 lbs, you need to move up to Class A.

Class B is the standard license for urban delivery drivers, transit bus operators, construction vehicle operators, and waste haulers. Training time is significantly shorter than Class A because there is no coupling/uncoupling component and the vehicle handling is more straightforward. Many local and regional employers only require Class B, so drivers who plan to stay off the interstate should evaluate whether Class A training is worth the extra time and cost.

Class C CDL — hazmat and passenger vehicles under 26,001 lbs

A Class C CDL is required when the vehicle does not meet Class A or Class B weight thresholds but is either designed to transport 16 or more passengers (including the driver) or is placarded for hazardous materials. Without one of those conditions, you do not need a CDL at all for a vehicle under 26,001 lbs. The Class C CDL exists specifically because of what you are carrying, not how much the vehicle weighs.

Common Class C CDL holders include small passenger van operators, hazmat delivery drivers, and shuttle bus drivers. The testing requirements are lighter than Class A or B — the skills test uses a representative vehicle, and training hours are shorter. But the endorsement tests (particularly hazmat) are the same difficulty regardless of CDL class.

CDL age requirements and eligibility

The minimum age to obtain a CDL is 18 years old for intrastate driving and 21 years old for interstate driving. This federal age split creates real complications for new drivers. An 18-year-old can get a Class A CDL in most states but is restricted to routes that do not cross state lines until they turn 21. That rules out most long-haul freight.

Interstate vs intrastate age minimums

The FMCSA's [Safe Driver Apprenticeship Pilot Program](https://www.fmcsa.dot.gov/safety/safe-driver-apprenticeship-pilot-program), launched in 2022 under the Infrastructure Investment and Jobs Act, allows a limited number of 18-to-20-year-old CDL holders to operate in interstate commerce under specific conditions. Participants must complete an apprenticeship with an experienced driver and use vehicles equipped with certain safety technologies including automatic emergency braking and speed limiters.

Outside the pilot program, the age rules are firm. An 18-year-old can drive a dump truck within Texas all day long with a valid Class B CDL. That same driver cannot cross into Oklahoma until their 21st birthday. Fleet managers operating near state borders need to pay close attention to this, especially with younger drivers on local routes that happen to clip a state line.

Disqualifying conditions and criminal history

Certain offenses result in CDL disqualification under [49 CFR Part 383.51](https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-383/subpart-D/section-383.51). A first offense of driving a CMV under the influence of alcohol (BAC of 0.04% or higher) or a controlled substance results in a one-year disqualification. A second offense is a lifetime disqualification, though some states allow reinstatement after 10 years with completion of a rehabilitation program.

Other disqualifying offenses include leaving the scene of an accident, using a CMV to commit a felony, driving a CMV with a revoked or suspended CDL, and causing a fatality through negligent operation. Two or more serious traffic violations within a three-year period (such as excessive speeding over 15 mph, reckless driving, or improper lane changes) trigger a 60-day disqualification on the second offense and a 120-day disqualification on the third.

DOT physical and medical certification requirements

Every CDL holder who operates in non-exempt interstate or intrastate commerce must pass a DOT physical examination and maintain a valid medical examiner's certificate (MEC). The exam must be performed by a medical examiner listed on the [FMCSA National Registry of Certified Medical Examiners](https://nationalregistry.fmcsa.dot.gov/). Using an unlisted examiner invalidates the entire exam, and the driver's medical certification will not be accepted.

What the DOT physical exam covers

The DOT physical under [49 CFR 391.41-391.49](https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-391/subpart-E) evaluates vision, hearing, blood pressure, cardiovascular health, respiratory function, neurological condition, and musculoskeletal fitness. Drivers must have at least 20/40 vision in each eye (corrected or uncorrected), recognize a forced whisper at 5 feet, and maintain a blood pressure below 140/90 to receive a full two-year certificate.

The exam includes urinalysis to screen for underlying conditions like diabetes (not a drug test — that is separate). Drivers with insulin-treated diabetes can still qualify but need an exemption from the FMCSA and must submit periodic monitoring reports. The examiner will also check for hernias, limb impairments, and any condition that could cause loss of consciousness behind the wheel.

Medical conditions that can disqualify a CDL applicant

Absolute disqualifiers include any condition likely to cause loss of consciousness (uncontrolled epilepsy, for example), vision worse than 20/40 that cannot be corrected, and hearing loss below the whisper test threshold without a hearing aid. According to the [FMCSA medical review board guidance](https://www.fmcsa.dot.gov/advisory-committees/mrb/medical-review-board), sleep apnea is not an automatic disqualifier, but moderate-to-severe cases require treatment compliance documentation.

Drivers with high blood pressure face a tiered certification system. Stage 1 hypertension (140-159/90-99) earns a one-year certificate instead of two years. Stage 2 (160-179/100-109) gets a one-time, one-year certificate with required treatment follow-up. Stage 3 (180+/110+) is a disqualifier until controlled. According to FMCSA data, cardiovascular conditions are the most common reason for shortened medical certificates among CDL holders.

Medical examiner's certificate renewal timeline

A standard medical examiner's certificate is valid for up to 24 months. Drivers with certain conditions receive shorter certificates — 12 months for Stage 1 hypertension, diabetes controlled by oral medication, or other monitored conditions. Drivers must carry the original or a copy of their MEC and ensure their state DMV has the current certificate on file. Since 2014, the FMCSA requires medical examiners to electronically report exam results to the FMCSA, which transmits them to the state.

Let the medical certificate expire and the CDL becomes invalid for CMV operation, even if the plastic license card has not expired. This is one of the most common compliance failures fleet managers encounter. The driver still technically holds a CDL, but their medical status shows as "not certified" in the state system. Operating a CMV with an expired medical certificate is treated the same as driving without a CDL.

CDL endorsements: H, N, T, P, S, and X explained

CDL endorsements authorize drivers to operate specific vehicle types or carry specific cargo beyond what the base CDL class permits. There are six standard endorsements, and each requires passing an additional written test. The hazmat endorsement adds a TSA security threat assessment. Missing an endorsement your job requires means you cannot legally operate that vehicle, period.

Hazardous materials (H) endorsement — TSA background check required

The hazmat endorsement is the most involved to obtain. Beyond the written knowledge test covering hazmat classification, placarding, loading procedures, and emergency response, applicants must pass a [TSA security threat assessment](https://www.tsa.gov/for-industry/hazmat-endorsement). This includes fingerprinting, a criminal background check, and an immigration status verification. The TSA check must be renewed every five years, independent of the CDL renewal cycle.

Only US citizens and lawful permanent residents can obtain a hazmat endorsement. The TSA process takes 30 to 60 days from application to approval, so drivers should start early. According to the [TSA's hazmat program page](https://www.tsa.gov/for-industry/hazmat-endorsement), disqualifying criminal offenses include espionage, treason, terrorism-related charges, and certain felonies within the past seven years including assault with intent to murder, arson, and kidnapping.

Tank vehicle (N) and double/triple trailer (T) endorsements

The tank vehicle (N) endorsement covers any vehicle designed to transport liquid or gaseous materials in a tank or tanks with an individual rated capacity of 119 gallons or more and an aggregate rated capacity of 1,000 gallons or more. The knowledge test covers liquid surge, rollover risks, weight distribution, loading and unloading procedures, and emergency response for tank vehicle incidents.

The double/triple trailer (T) endorsement is only available with a Class A CDL, since only Class A covers combination vehicles heavy enough for doubles and triples. The test covers coupling and uncoupling procedures, air brake inspection for multiple trailers, and stability management. Not every state allows triple trailers on its roads, but the federal endorsement remains the same regardless.

Passenger (P) and school bus (S) endorsements

The passenger (P) endorsement requires both a written test and a skills test conducted in a passenger-representative vehicle. The written exam covers passenger loading and unloading, emergency exit procedures, and passenger management. Transit agencies, charter bus companies, and shuttle operators all require this endorsement.

The school bus (S) endorsement is separate from the passenger endorsement, though many states require the P endorsement as a prerequisite. The school bus endorsement adds knowledge requirements for student loading zones, railroad crossing procedures, and emergency evacuation protocols specific to school buses. Most states also require a state-level background check beyond the federal CDL requirements, and some require additional behind-the-wheel training in an actual school bus.

Combination endorsements and restrictions

The X endorsement is simply the combination of H (hazmat) and N (tank vehicle). If you haul fuel, liquid chemicals, or any hazmat in a tank vehicle, you need the X. Drivers must pass both the hazmat and tank vehicle knowledge tests and complete the TSA background check. There is no separate X test.

CDL restrictions work in the opposite direction from endorsements. Common restrictions include L (restricts to vehicles without air brakes or with air brakes over hydraulic), V (medical variance required), E (automatic transmission only), and Z (no full air brake equipped vehicle). The automatic transmission restriction is increasingly relevant as fleets adopt automated manual transmissions. A driver who tests in an automatic gets the E restriction and cannot legally drive a manual CMV without retesting.

CDL testing process: skills test and knowledge exam breakdown

CDL testing has two mandatory components: a knowledge test (written or computer-based) and a skills test (hands-on driving). Both must be passed in the state where the driver holds legal residency. The skills test must be administered by a state-licensed examiner, either at a state DMV testing facility or through an approved third-party testing organization.

General knowledge test — what to study

Every CDL applicant must pass the general knowledge test, regardless of class. This covers vehicle inspection procedures, basic vehicle control, safe driving practices, cargo handling, air brakes (unless you accept the air brake restriction), and pre-trip inspection requirements. Most states use a pool of 50 questions drawn from a larger bank, with a passing score of 80%.

If you are getting a Class A CDL, you will also take the combination vehicles knowledge test covering coupling/uncoupling, trailer jackknifing, and rollover prevention. Air brake knowledge is tested separately — passing it removes the air brake restriction from your license. Study materials based on the [FMCSA CDL manual](https://www.fmcsa.dot.gov/registration/commercial-drivers-license/drivers) are available through most state DMV websites.

Skills test: pre-trip inspection, basic controls, and road test

The CDL skills test has three segments. The pre-trip inspection requires the applicant to walk around the vehicle, identify major components, and explain what they would inspect and why. Examiners want to hear specific defects you would look for — not just "check the tires" but "check for tread depth below 4/32", sidewall damage, proper inflation, and lug nut tightness.

Basic vehicle control tests your ability to perform maneuvers in a controlled environment: straight-line backing, offset backing (left and right), alley docking (simulating a loading dock approach), and parallel parking (conventional or sight-side). Pull-ups are limited — typically two per exercise — and excessive pull-ups count as errors.

The road test evaluates driving in actual traffic conditions. Examiners score left and right turns, lane changes, highway merging, intersections, railroad crossings, and general traffic interaction. Automatic failure items include any accident, any traffic violation, refusal to attempt a maneuver, and dangerous actions requiring examiner intervention. Most road tests last 30 to 45 minutes.

Endorsement-specific written exams

Each endorsement has its own written test, typically 20 to 30 questions with an 80% passing threshold. Endorsement tests can usually be taken on the same day as the general knowledge test. The hazmat test is considered the most difficult, covering nine hazard classes, placarding rules, shipping paper requirements, bulk packaging markings, and emergency response procedures.

A common strategy is to knock out all the written tests in one sitting and then schedule the skills test separately. Most states allow unlimited retakes of knowledge tests, though some impose a waiting period (typically 7 days) between attempts. Skills test retakes usually carry an additional fee of $50 to $150 depending on the state.

Entry-Level Driver Training (ELDT) rule — what changed in 2022

The FMCSA's [Entry-Level Driver Training (ELDT) rule](https://www.fmcsa.dot.gov/registration/commercial-drivers-license/entry-level-driver-training) took effect on February 7, 2022, and fundamentally changed how new CDL drivers qualify for testing. Before ELDT, most states had no standardized training requirement. A driver could study on their own, borrow a truck, and show up to the DMV for their skills test. That path is closed.

Under ELDT, first-time CDL applicants and drivers upgrading their CDL class or adding an H or P endorsement must complete training through a provider listed on the [FMCSA Training Provider Registry (TPR)](https://tpr.fmcsa.dot.gov/). The training provider must report the driver's successful completion to the TPR before the state will allow the driver to take the skills test.

FMCSA Training Provider Registry requirements

Training providers must register on the TPR and self-certify that they meet the FMCSA's curriculum standards. The registry includes private CDL schools, community colleges, carrier-sponsored training programs, and some staffing agencies. As of 2026, there are over 7,000 registered training providers nationwide. The FMCSA does not accredit or inspect these providers — registration is self-certification, which has drawn criticism from industry safety advocates.

Once a student completes training, the provider submits the completion record electronically to the TPR. The state DMV system checks the TPR before allowing the student to schedule a skills test. If the completion is not in the registry, the student cannot test. This creates occasional delays when training providers are slow to submit records.

Behind-the-wheel and theory hour minimums

The ELDT rule sets curriculum standards but does not mandate a specific number of behind-the-wheel hours at the federal level. The rule requires theory (classroom) instruction covering topics like vehicle systems, vehicle inspection, basic control, shifting, backing, coupling/uncoupling, and road driving. Behind-the-wheel training must demonstrate proficiency in each skill area, with a trainer certifying the student is competent.

In practice, most quality CDL training programs run 160 or more total hours for Class A, with roughly half that time behind the wheel. Some states set their own minimums on top of the federal rule. For example, according to the [California DMV](https://www.dmv.ca.gov/portal/driver-education-and-safety/educational-materials/fast-facts/commercial-driver-license-faq/), California requires minimum 15 hours of behind-the-wheel instruction for Class A applicants through an approved third-party program. Quality programs typically far exceed these minimums.

Who is exempt from ELDT requirements

ELDT exemptions exist for several groups. Drivers who held a valid CDL before February 7, 2022 are exempt, even if they let it lapse and are reinstating. Military personnel or veterans with qualifying military CMV experience are exempt. Drivers operating in certain restricted areas (like farms under the farm vehicle exemption) may also be exempt depending on their state's implementation.

The exemption for existing CDL holders is the biggest one. If you had a CDL in any state before the ELDT effective date, you can upgrade classes or add endorsements without going through a registered training provider, provided your CDL was not expired at the time. This grandfather clause does not apply to first-time CDL applicants who started the process after February 7, 2022.

How much does it cost to get a CDL?

Total CDL costs range from $1,500 to $10,000 depending on the training path, CDL class, and state. The biggest variable is training. Private CDL schools charge $3,000 to $7,000 for a Class A program. Community college programs run $1,500 to $5,000 and often qualify for financial aid. Company-sponsored programs can cost the driver nothing upfront, but come with contract obligations.

CDL school tuition and training program costs

CDL school tuition is the biggest expense and also the one with the most variance. Short-form Class B programs at community colleges can run under $2,000. Full Class A programs at private schools hit $5,000 to $7,000 in most markets. Premium programs that include job placement, additional endorsement training, and extended behind-the-wheel hours push past $8,000.

Financial aid options exist. The [Workforce Innovation and Opportunity Act (WIOA)](https://www.dol.gov/agencies/eta/wioa) funds CDL training through local workforce development boards. Many community college CDL programs accept Pell Grants and federal student loans. Some states offer specific CDL training grants — for example, [Pennsylvania's WEDnetPA program](https://www.wednetpa.com/) reimburses employers for employee CDL training costs. Veterans can use GI Bill benefits at approved CDL schools listed on the [VA's WEAMS database](https://www.va.gov/education/gi-bill-comparison-tool/).

State licensing fees and testing costs

State fees for the CLP and CDL license itself are the smallest part of the total cost but vary widely. Texas charges $61 for a CLP and $97 for a CDL. California charges $36 for the CLP and $76 for the CDL. New York charges $164.50 for a 5-year CDL. Some states bundle endorsement test fees into the license cost; others charge per test.

Third-party skills testing organizations, which many states authorize as an alternative to DMV testing, typically charge $200 to $500 for the skills test. The advantage is faster scheduling — DMV wait times for CDL skills tests can stretch to 4 to 8 weeks in high-demand states. Many CDL schools include a third-party skills test in their tuition.

Company-sponsored CDL programs — the trade-offs

Large carriers like Werner, CRST, Swift (now Knight-Swift), and Schneider offer CDL training programs with no upfront cost to the student. The trade-off is a post-training employment contract, typically requiring the driver to work for the sponsoring carrier for 12 to 24 months. Leave early, and you owe back the training cost — often $3,000 to $6,000.

These programs are legitimate but not always the best deal. Training quality varies. Some company programs compress training into the minimum viable hours and focus on getting drivers into seats quickly. The contract obligation limits your ability to negotiate pay or switch to a better-paying carrier during the commitment period. For drivers who can afford to pay for independent training, the freedom to choose your first employer is often worth the upfront investment.

State-by-state CDL differences that catch drivers off guard

Federal CDL standards set the floor, but states build on top of it. The differences are not dramatic, but they create friction for drivers who trained in one state and move to or operate in another. Reciprocity means your CDL is valid in every state, but the process for transferring a CDL, adding endorsements, or retesting varies.

Waiting periods, retesting rules, and reciprocity

When a CDL holder moves to a new state, they must transfer their CDL within the timeline that state requires — usually 30 to 90 days after establishing domicile. Some states accept a transfer with no retesting. Others require the new resident to retake the knowledge test, the skills test, or both. New York, for example, requires a new skills test for transfers in certain circumstances.

Failed knowledge test retake waiting periods range from same-day (a few states allow immediate retakes) to 14 days. Skills test retake waiting periods are typically 7 to 14 days. Some states limit the total number of attempts within a CLP validity period. If a CLP expires before passing the skills test, the driver must start over with a new CLP and may need to redo ELDT training.

States with additional CDL requirements beyond federal minimums

California requires all Class A applicants to obtain a separate passenger vehicle endorsement test if they plan to operate any vehicle carrying passengers, beyond the federal threshold. Several states including New York, New Jersey, and Pennsylvania require additional training hours or documentation beyond what the ELDT rule mandates.

Some states have unique endorsements or restrictions not found in other states. Washington state has a specific logbook training requirement. Illinois requires a certain number of observation hours during training. The practical takeaway for fleet managers operating across state lines: verify the CDL requirements in every state where your drivers are domiciled, not just your home state.

What fleet managers should verify before hiring CDL drivers

Hiring a driver with a valid CDL is not the end of the compliance story — it is the beginning. Federal regulations require motor carriers to verify multiple aspects of a driver's qualifications before and after they start driving. Missing any of these checks exposes the carrier to fines, increased liability in accidents, and potential operating authority revocation.

FMCSA Drug and Alcohol Clearinghouse checks

Since January 2020, employers must query the [FMCSA Drug and Alcohol Clearinghouse](https://clearinghouse.fmcsa.dot.gov/) before hiring any CDL driver and annually for all current CDL employees. The Clearinghouse is a federal database that tracks drug and alcohol program violations. A driver with an unresolved violation in the Clearinghouse cannot legally perform safety-sensitive functions, including driving a CMV.

According to [FMCSA Clearinghouse data](https://clearinghouse.fmcsa.dot.gov/), over 200,000 drivers had at least one drug or alcohol program violation recorded as of early 2026. Pre-employment queries are full queries that require driver consent. Annual queries are limited queries that only report whether a violation exists. If a limited query returns a result, the employer must conduct a full query with driver consent within 24 hours.

MVR pulls and PSP reports

Motor vehicle record (MVR) checks are required annually for every CDL driver under [49 CFR 391.25](https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-391/subpart-C/section-391.25). The MVR shows license status, endorsements, restrictions, and violations. Employers must review it within 30 days of hire and annually thereafter. Drivers with suspensions, revocations, or disqualifying violations on their MVR cannot legally drive for the carrier.

Pre-Employment Screening Program (PSP) reports, available through the [FMCSA PSP portal](https://www.psp.fmcsa.dot.gov/), show a driver's five-year crash history and three-year inspection history from the FMCSA's Motor Carrier Management Information System. PSP reports are not legally required, but they are one of the most effective screening tools available. A driver with multiple critical violations in their inspection history is a quantifiable risk.

Medical certificate verification

Carriers must verify that every CDL driver has a current, valid medical examiner's certificate on file with their state DMV. The driver's medical certification status is now visible on the CDL itself or through the state's electronic system. A driver whose medical certificate has expired is immediately disqualified from CMV operation, even if their CDL card shows a future expiration date.

Set up tracking systems for medical certificate expiration dates across your driver roster. A proactive fleet manager schedules DOT physical renewals 30 to 60 days before expiration to allow time for any follow-up appointments. Drivers with conditions requiring shorter certificate periods (12 months instead of 24) need even closer tracking. One lapsed medical card on a driver involved in an accident can expose the carrier to significant liability.

Frequently asked questions about CDL requirements