Florida CDL Handbook: Classes, Endorsements, and Testing

The Florida CDL Handbook is a free study guide published by the Florida Department of Highway Safety and Motor Vehicles (FLHSMV) that teaches you everything the state will test you on for a commercial driver license. You can download the current PDF from the FLHSMV handbooks and manuals page at no cost, or pick up a print copy at most driver license service centers and county tax collector offices.¹ Confirm you have the most recent edition before you start studying, because Florida updates it to match changes in state and federal rules.

What the Handbook Teaches You

The bulk of the book is general knowledge every CDL applicant must master regardless of what they plan to drive. The chapters build on each other, moving from basics toward the specialized material tied to particular vehicles and cargo.

Vehicle Inspection and Basic Control

The handbook walks through pre-trip inspections in step-by-step detail: engine compartment, brakes, tires, lights, coupling devices, and cargo securement. The knowledge test will ask you to identify specific defects and explain why they matter. The basic control section covers steering, shifting, backing, and managing speed on grades and curves.

Safe Driving

Several chapters cover seeing and communicating with other drivers, managing following distance, and handling intersections. The handbook treats these differently from a regular driver’s manual because the physics of a 40-ton vehicle create stopping distances and blind spots that surprise even experienced car drivers. Night driving, adverse weather, and mountain driving each get their own treatment.

Air Brakes and Combination Vehicles

Air brake systems get a dedicated section because they work differently from hydraulic brakes. If you skip the air brake knowledge test, your CDL carries an L restriction that bars you from driving any vehicle equipped with air brakes.² The combination vehicles chapter covers coupling and uncoupling, rollover risks, and jackknife prevention.

Cargo Securement

The cargo chapter is rooted in federal standards that require loads to be secured tightly enough to prevent shifting, spilling, or falling in transit, with specific force-resistance standards for tiedowns and different securement methods for different cargo types.³ Expect test questions about how many tiedowns are needed for loads of different lengths and weights.

Which Class of CDL You Need

The handbook sorts commercial vehicles into three license classes. Figuring out which one applies to the job you want tells you which chapters to focus on and which skills test to take.

Class A covers any combination of vehicles with a gross combination weight rating of 26,001 pounds or more where the towed unit exceeds 10,000 pounds. Tractor-trailers and most flatbed rigs fall here.
Class B covers any single vehicle rated at 26,001 pounds or more, or that vehicle towing a trailer under 10,000 pounds. Dump trucks, large buses, and concrete mixers are Class B.
Class C covers vehicles that don’t fit A or B but either carry 16 or more passengers (including the driver) or haul placarded hazardous materials.⁴

A Class A license lets you drive vehicles in all three groups. Class B covers Class B and C. Class C is limited to Class C vehicles.⁵

What You Need Before You Test

The handbook teaches the material, but Florida won’t let you sit for the tests until several outside pieces are in place.

Age and License

You must be at least 18 to apply for a Florida CDL. Under 21, your license carries an intrastate-only restriction, meaning you can drive commercial vehicles within Florida but not across state lines.⁶ Federal rules require drivers to be 21 for interstate commercial driving.⁷ You also need a valid Florida Class E operator’s license and a driving record free of suspensions or disqualifications that would block issuance. Out-of-state license holders have to transfer their license to Florida first.

Documents

First-time applicants must present documents that satisfy federal Real ID standards: proof of identity, your Social Security number, and two documents proving your Florida residential address.⁶ Identity documents typically include a birth certificate, U.S. passport, or qualifying immigration paperwork. Bring legal proof of any name change. A missing document means a wasted trip.

Medical Certification

Every applicant needs a Medical Examiner’s Certificate (Form MCSA-5876) from a provider listed on the FMCSA’s National Registry of Certified Medical Examiners.⁸ The examiner checks vision, hearing, blood pressure, and overall fitness. You also complete a self-certification declaring which category of commercial driving you plan to do:

Non-excepted interstate: driving across state lines, with a current medical certificate required. Most CDL holders are here.
Excepted interstate: driving across state lines only for specific activities such as transporting school children or responding to emergencies.
Non-excepted intrastate: driving only within Florida and meeting the state’s medical certification requirements.
Excepted intrastate: driving only within Florida for activities the state has determined don’t require medical certification.⁹

Submit both forms to FLHSMV. An expired medical certificate means you cannot legally operate a commercial vehicle, and inspectors flag it constantly at roadside stops.

Entry-Level Driver Training

Before Florida will let you take the CDL skills test, federal law requires you to complete Entry-Level Driver Training (ELDT) through a provider registered with the FMCSA’s Training Provider Registry. ELDT applies to anyone seeking a first-time Class A or Class B CDL, upgrading from Class B to Class A, or adding a passenger, school bus, or hazardous materials endorsement for the first time.¹⁰

Training has two parts. The theory portion covers control systems, pre- and post-trip inspections, backing and docking, speed and space management, hazard perception, and emergency procedures. Behind-the-wheel training puts you in the driver’s seat for supervised practice.¹¹ Your provider must submit certification to the FMCSA by midnight of the second business day after you finish. Verify your record is in the registry before you schedule the skills test; Florida checks it before letting you test.¹²

Endorsements

Specialized roles need separate endorsements, each with its own chapter and knowledge test:

N (Tank Vehicle): for commercial vehicles with permanently or temporarily attached tanks rated at 1,000 gallons or more.
T (Double/Triple Trailers): for combinations with a semitrailer and an additional trailer. Triple trailers are not permitted on Florida roads.
P (Passenger): for vehicles designed to carry 16 or more people, including the driver.
S (School Bus): requires the knowledge exam and a skills test conducted in a school bus. You must also hold a passenger endorsement.
H (Hazardous Materials): for vehicles hauling placarded hazmat. Requires a written knowledge test that cannot be taken orally for first-time applicants. An H endorsement also requires passing a TSA security threat assessment with fingerprints and a background check.¹³¹⁴
X (Combined): a combined tank and hazmat endorsement issued when you pass both the N and H tests.¹⁵

The tank chapter is worth extra attention. Liquid surge inside a partially filled tank can push a truck through a stop sign or roll it on a curve, and the test focuses heavily on managing that risk.

Restrictions That Can Follow You

If your skills test reveals gaps, Florida may add restrictions that limit what you can drive. The L restriction bars you from any commercial vehicle with air brakes if you don’t pass the air brake test or test in a vehicle without them. The 4 restriction limits you to automatic transmissions if you test in an automatic.² Many carriers won’t hire drivers with restrictions because their fleets mix manual and air-brake vehicles. Testing in a manual transmission vehicle with air brakes avoids both.

How Testing Works After You Study

Testing happens in two stages: knowledge tests first, then a skills test after a mandatory waiting period.

Knowledge Tests and the CLP

You schedule the knowledge test at a state office or authorized third-party tester. The appointment starts with a vision screening and moves to the written exams: a general knowledge test plus any endorsement tests you need. Passing earns you a Commercial Learner’s Permit (CLP), valid up to one year.¹⁶

The original CDL fee in Florida is $75. A knowledge test retest costs $10 and a skills test retest costs $20. Tax collector offices may add a $6.25 service fee, which is waived for veterans who provide proof of veteran status.¹⁷

A CLP lets you practice on public roads but only with a licensed CDL holder of the correct class and endorsements in the front seat (or directly behind you in a passenger vehicle) keeping you under direct supervision. CLP holders cannot haul hazmat. A CLP with a tank endorsement allows only empty tank operation. A CLP with a passenger or school bus endorsement does not allow carrying actual passengers beyond inspectors, examiners, other trainees, and the supervising CDL holder.¹⁶

Skills Test

Federal rules require you to wait at least 14 days after your CLP is issued before attempting the skills test.¹⁸ The test has three parts: a pre-trip vehicle inspection where you walk the examiner through each system, basic control maneuvers like backing and turning in a confined space, and a road test on public streets. Bring your CLP, medical certificate, and identification. Florida offers a skills test waiver for certain honorably discharged military veterans with qualifying driving experience.¹³

Rules the Handbook Flags Because They End Careers

Two chapters are less about passing the test and more about keeping the license once you have it: hours of service, and disqualifications.

Hours of Service

Federal hours-of-service rules apply to every commercial driver on the road, and a violation can shut you down at a roadside inspection. For property-carrying drivers, the core limits are an 11-hour driving maximum after 10 consecutive hours off; a 14-hour on-duty window within which all driving must occur; a required 30-minute break after 8 hours of driving without an interruption; and a weekly cap of 60 hours in 7 days or 70 in 8, depending on the carrier’s schedule.¹⁹ The 14-hour window catches new drivers off guard. Loading, fueling, and paperwork all count against it. Three hours at a shipper’s dock eats into your available driving time just as surely as being on the highway.

Disqualifications

Federal law sets a lower alcohol threshold for commercial drivers: a 0.04 percent BAC behind the wheel of a commercial vehicle triggers a one-year disqualification on the first offense, half the 0.08 percent limit for regular drivers.²⁰ A first conviction for driving under the influence, refusing an alcohol test, leaving the scene of an accident, using a commercial vehicle to commit a felony, or causing a fatality through negligent driving carries the same one-year disqualification. Hauling hazmat at the time raises it to three years. A second major offense, in any combination, is a lifetime disqualification.

Serious traffic violations are a separate category: speeding, following too closely, unsafe lane changes, and using a handheld device while driving. Two convictions within three years mean a 60-day disqualification; three or more mean 120 days. These count whether you were in a commercial vehicle or your personal car when the violation occurred.²⁰ A 60-day disqualification means two months without a paycheck, and most carriers will terminate rather than hold the seat.

1
Florida Department of Highway Safety and Motor Vehicles. Handbooks and Manuals
2
Florida Department of Highway Safety and Motor Vehicles. License Classes, Endorsements and Designations
3
eCFR. 49 CFR Part 393 Subpart I – Protection Against Shifting and Falling Cargo
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eCFR. 49 CFR 383.91 – Commercial Motor Vehicle Groups
5
Federal Motor Carrier Safety Administration. Drivers
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Florida Department of Highway Safety and Motor Vehicles. Commercial Driver License
7
Federal Register. Commercial Drivers Licenses – Pilot Program to Allow Drivers Under 21
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Federal Motor Carrier Safety Administration. Medical Examiners Certificate – Commercial Driver Medical Certification
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Federal Motor Carrier Safety Administration. How Do I Determine Which of the 4 Categories of Commercial Motor Vehicle Operation I Should Self-Certify
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Federal Motor Carrier Safety Administration. Entry-Level Driver Training (ELDT)
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eCFR. 49 CFR Part 380 Subpart F – Entry-Level Driver Training Requirements
12
Federal Motor Carrier Safety Administration. Training Provider Registry
13
The 2025 Florida Statutes. Florida Statutes 322.57 – Tests of Knowledge Concerning Specified Vehicles, Endorsement, Nonresidents, Violations
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eCFR. 49 CFR Part 1572 – Credentialing and Security Threat Assessments
15
Florida Administrative Code. Fla Admin Code Ann R 15A-7.003 – CDL Endorsements
16
eCFR. 49 CFR 383.25 – Commercial Learner’s Permit (CLP)
17
Florida Department of Highway Safety and Motor Vehicles. Fees
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eCFR. 49 CFR 383.25 – Commercial Learner’s Permit (CLP)
19
eCFR. 49 CFR Part 395 – Hours of Service of Drivers
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eCFR. 49 CFR 383.51 – Disqualification of Drivers