Florida CDL Practice Test

Correct answer: 18 years old

Florida CDL applicants must be at least 18 years of age. Drivers under 21 are limited to driving within Florida only — interstate driving requires being at least 21.

Correct answer: Intrastate operation only — driving within Florida

Florida issues CDLs at 18, but applicants under 21 are restricted to intrastate operation only. Crossing state lines in a CMV requires the federal minimum age of 21.

Correct answer: $75.00

Florida charges $75.00 for an original commercial driver license, and the same $75.00 for a CDL renewal. Endorsements and retests carry separate fees.

Correct answer: $10.00

Florida charges a $10.00 fee for each knowledge retest. Remember that on a retake, the state must give you a different version of the test — so study the whole manual, not one set of questions.

Correct answer: $20.00

A skills retest costs $20.00 — double the $10.00 knowledge retest fee. Third-party skills test sites may also charge their own administration fees.

Correct answer: $7.00 per endorsement

Each CDL endorsement costs $7.00 in Florida. The hazardous materials endorsement additionally requires a separate $91.00 background check fee.

Correct answer: Submit your fingerprints and pass a TSA background check

The hazmat endorsement requires more than the knowledge test: you must submit fingerprints and pass a Transportation Security Administration background check before it is issued.

Correct answer: $91.00

A background check fee of $91.00 is charged for new or renewed hazardous materials endorsements, in addition to the other CDL issuance fees.

Correct answer: 4 years, renewable up to 1 year before it expires

Florida CDLs with a hazmat endorsement are issued for 4 years and may be renewed up to 1 year early. Renewing early avoids being unable to haul hazmat while security check results are pending.

Correct answer: English only

Since February 6, 2026, all Florida driver license knowledge and skills exams — including CLP and CDL knowledge exams — are administered exclusively in English, and translation services are not permitted.

Correct answer: About 250 feet with low beams and about 350–500 feet with high beams

With low beams you can see ahead about 250 feet, and with high beams about 350 to 500 feet. Adjust your speed so you can stop within the range of your headlights; otherwise you may see a hazard too late to stop.

Correct answer: May give only half the light they should, cutting down what you can see

Dirty headlights may give only half the light they should. This cuts down your ability to see and makes it harder for others to see you. Keep your lights clean and properly adjusted.

Correct answer: Sleep before you drive — even a nap can save your life

Make sure you are rested and alert. If you are drowsy, sleep before you drive — even a nap can save your life or the lives of others. The only safe cure for sleepiness is to sleep.

Correct answer: Within 500 feet of an oncoming vehicle and when following another vehicle within 500 feet

Dim your lights before they cause glare for other drivers — within 500 feet of an oncoming vehicle and when following another vehicle within 500 feet. Otherwise, use high beams when it is safe and legal.

Correct answer: Look slightly to the right at a lane or edge marking, and not turn on your own high beams

Do not look directly at oncoming lights; look slightly to the right at a right lane or edge marking. Do not "get back at" them by putting on your own high beams — that only increases glare and the chance of a crash.

Correct answer: Don’t — pull off the road into a rest area or truck stop until visibility is better

The best advice for driving in fog is don’t. It is preferable to pull off into a rest area or truck stop until visibility is better. If you must drive, slow down before you enter the fog and be ready to reduce speed further.

Correct answer: Low-beam headlights and fog lights, even in the daytime

Use low-beam headlights and fog lights for best visibility in fog, even in daytime. High beams reflect off the fog and reduce visibility. Also turn on your 4-way flashers so vehicles behind can notice you sooner.

Correct answer: Not assume the fog will thin out after you enter it, and avoid passing other vehicles

Do not assume the fog will thin out after you enter it — visibility can deteriorate rapidly. Obey fog warning signs, avoid passing other vehicles, and don’t stop along the roadway unless absolutely necessary.

Correct answer: At least 4/32 inch on front tires and 2/32 inch on other tires

You must have at least 4/32 inch tread depth in every major groove on the front tires and at least 2/32 inch on the other tires — more would be better. Drive tires need traction to push the rig through snow, and steer tires to steer it.

Correct answer: Carry the right number plus extra cross-links, and learn to install them before you need to

You may find conditions where you cannot drive without chains. Carry the right number of chains and extra cross-links, make sure they fit your drive tires, check them for damage, and learn how to put them on before you need to do it in snow and ice.