Delaware CDL Practice Test

The Delaware DMV doesn’t publish its test sizes. Our practice tests use the usual CDL format: General Knowledge 50 questions (40 to pass), Air Brakes 25 (20), Hazmat 30 (24), and Combination, Tank, Doubles/Triples, Passenger and School Bus 20 each (16). CDL knowledge tests are walk-in at any DMV facility.

The Delaware Commercial Driver’s Manual (AAMVA 2022 testing system, released February 2025): Delaware’s pages on requirements, classes, endorsements, procedures and violations, then inspection, safe driving, cargo, passengers, air brakes, combination vehicles, doubles and triples, tankers, hazmat and school buses. Delaware Commercial Driver’s Manual p. 3 to 10-11

80% on each of the 8 tests, each graded on its own (General Knowledge: 40 of 50). Every test's numbers are in the table on this page. Always confirm the current tests with the Delaware Division of Motor Vehicles (DMV). Why 80% in every state →

18 with one year of driving experience to drive within Delaware, or 21 with at least one year of experience to drive interstate or haul hazardous materials. You must also be a Delaware resident and able to meet the federal medical standards. Delaware Commercial Driver’s Manual p. 3

One year from the date the original permit was issued; it can’t be extended beyond that. Hold it at least 14 full days before the skills test, and practice only with a licensed CDL driver for that vehicle type.

Your valid learner’s permit, the license of the accompanying driver (at least 21), and the registration and insurance cards for the test vehicle (and trailer). Road tests are by appointment, weekdays except Wednesday, after 14 days on the CLP; the vehicle must be representative of what you’ll drive and pass inspection.

Only within 30 days before it expires.

Delaware Division of Motor Vehicles (DMV) lists the current fees for the commercial learner permit, the CDL tests and the license on its official fee page.

Class A for a combination over 26,000 pounds that tows a vehicle over 10,000 pounds. Class B for a single vehicle over 26,000 pounds that isn't towing more than 10,000 pounds. Class C for a lighter vehicle built to carry 16 or more people, driver included, or one that must be placarded for hazardous materials.

Delaware law sets a CDL to expire on your eighth birthday after it is issued, so it runs about eight years. A CDL with a hazmat endorsement is issued for five years or less, to end when your TSA hazmat approval does. Renewal opens only in the last 30 days before expiry.

Only Passenger, School Bus and Tank, and each written test must be passed before the permit is issued. With P or S you can't carry passengers or students, and with N you may drive only an empty tank vehicle. Every other endorsement is barred on a CLP, and a CLP holder may not haul hazardous materials.

Since February 26, 2025, every Delaware DMV location gives the modernized skills test, with updated steps for the pre-trip vehicle inspection and the basic control exercises, and a pre-trip checklist you may use as an aid. The skills being judged didn't change, and the required Entry-Level Driver Training prepares you for it.

No. Delaware issues a CDL or CLP only after you surrender every license from other states. Within 24 hours before issuing, the DMV checks the national CDL and problem-driver records, and it won't issue while you're disqualified, while any license of yours is suspended or revoked, or while the Drug and Alcohol Clearinghouse bars you.

Electronically: since June 23, 2025 your National Registry medical examiner submits the results, and Delaware no longer accepts paper medical certificates. If you can’t meet the federal standard, ask about Delaware’s intrastate-only medical waiver (not for passengers or hazmat).

Delaware has four. Category 1 is for anyone who crosses a state line, even only now and then, and needs a medical certificate. Category 2 covers excepted interstate work, Category 3 intrastate driving under Delaware's own rules with a K restriction, and Category 4 is only for Non-CDL Class A or B holders.

Category 2 if your school bus route crosses state lines, Category 3 if it stays inside Delaware. In both cases you must carry your State Department of Education medical card at all times. If you also drive a vehicle that falls under Category 1, you choose Category 1 instead.

Category 3 drivers: those with a Delaware state waiver for vision or insulin-controlled diabetes, and drivers under 21 who drive vehicles over 26,001 pounds, vehicles for 16 or more people or school vehicles. If your license lacks the K, you visit the DMV for a new one. To remove it later, you must meet the federal medical standard.

About 60 days before it expires, the DMV tries to remind you to send a new certificate or self-certify into a category that doesn't need one. If neither happens, the CDL or CLP is downgraded no later than 60 days after the certificate expires, and you can't renew, upgrade or transfer it while you're not certified.

Yes. A retired driver or anyone no longer driving a commercial vehicle can self-certify under Category 2, which needs no medical examiner's certificate on file, and keep the CDL. Before you drive a commercial vehicle again, you self-certify with the DMV again and, if your new category needs it, get a current medical certificate.

They get a Non-CDL (Class A or B) instead, after a knowledge test and road test in that class, when operating farm, firefighting or other emergency vehicles under the CDL waiver; it can’t be used for hire or in interstate commerce. Farm vehicles must stay within 150 miles of the farm. Personal RVs and military vehicles need no special license.

Yes. Every Delaware school bus driver needs a CDL and must also meet the Department of Education's school bus training and medical rules. Once both are met, the CDL carries the P and S endorsements, plus an M or N restriction that matches the class of vehicle. Delaware Commercial Driver’s Manual p. 4

Age 21, a TSA security threat assessment with fingerprints and proof of citizenship or legal status, then entry-level driver training before the hazmat written test at a DMV. Delaware Commercial Driver’s Manual p. 4

A first violation disqualifies your CDL for 180 days to 1 year (up to 2 years with hazmat), a second within ten years for 2 to 5 years (3 to 5 with hazmat), and three within ten years for 3 to 5 years; the court sets the period.

They include driving a commercial vehicle at 0.04 alcohol or more, DUI of alcohol or drugs in any vehicle, refusing an alcohol test, leaving a crash scene, a felony using a vehicle and a fatal crash caused by negligent commercial driving. A first one costs one year (three with hazmat), a second is lifetime, in your own car too.

Speeding 15 mph or more over the limit, reckless driving, erratic lane changes, tailgating, texting or a handheld phone at the wheel, and driving without the right CDL class or endorsement. Two in a commercial vehicle within three years mean 60 days off; three or more, 120 days. A suspension in your own car can also cost the CDL.

At least 60 days without a CDL for a first conviction in a commercial vehicle, at least 120 days for a second within three years, and at least a year for a third. Violations include not stopping when required, not checking the tracks are clear, stopping on the tracks for lack of room and ignoring signals.

Yes. Report any traffic conviction other than parking, in Delaware or another state, to the DMV within 30 days, and tell your employer in writing within 30 days too. If your license is suspended or you're put out of service, tell your employer before the end of the next business day.

Delaware treats it as perjury. Giving incorrect or incomplete information when you apply for a CDL, or swearing falsely to anything the CDL law requires, is punished like any other perjury, and your license or driving privileges are suspended or cancelled right away.