Delaware CDL Practice Test 2025

CDLs in Delaware are issued by the Delaware Division of Motor Vehicles (DMV), which operates under the Delaware Department of Transportation (DelDOT). This is somewhat unusual nationally — in most states, the DMV is a standalone agency or part of a separate administrative department, but Delaware's DMV is part of its transportation department. CDL applicants visit DelDOT/DMV offices in Dover, Newark, Wilmington, or Georgetown to complete the CDL application process.

All Delaware CDL applicants must pass the General Knowledge test. Depending on the license class and endorsements sought, additional tests include: Combination Vehicles (Class A), Air Brakes (if the vehicle has air brakes), Passenger Transport, Hazardous Materials (plus TSA security threat assessment), Tank Vehicles, Doubles/Triples, and School Bus. Each test requires a minimum score of 80%. CDL applicants must also pass a DOT physical examination and submit a current medical certificate.

The Delaware Memorial Bridge (I-295/US 40) has standard federal weight limits for commercial vehicles. During high-wind events, DelDOT may impose restrictions or closures specifically for high-profile commercial vehicles — box trucks, enclosed trailers, empty flatbeds, and similar vehicles that present large surface areas to crosswinds. CDL drivers of high-profile vehicles should monitor DelDOT traffic alerts before crossing during storm conditions. The bridge also has standard toll collection at the Delaware end of the crossing.

The FMCSA BAC limit of 0.04% applies to CDL drivers operating a CMV in Delaware. Additionally, Delaware law and FMCSA regulations prohibit consuming alcohol within 4 hours before operating a CMV. A CDL driver who refuses a chemical test or tests at 0.04% or above is placed out of service and faces CDL disqualification. Delaware's standard DUI BAC limit of 0.08% applies to CDL holders driving personal vehicles.

The Port of Wilmington is Delaware's primary maritime cargo terminal, specializing in refrigerated (reefer) cargo including tropical fruits and other perishables. CDL drivers frequently access the port for loading and unloading container and break-bulk cargo. Routes to the Port of Wilmington pass through parts of Wilmington's city street network, which has low-clearance bridges and weight-restricted roads. CDL drivers should pre-plan their routing using commercial vehicle navigation tools and verify all bridge clearances and weight limits before entering Wilmington city streets with a large CMV.

A Class A CDL allows you to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 lbs or more, provided the towed unit exceeds 10,000 lbs — this includes tractor-trailers and double/triple trailer rigs. A Class B CDL covers single vehicles with a GVWR of 26,001 lbs or more, or any such vehicle towing a unit not exceeding 10,000 lbs — this includes straight trucks and large buses. A Class C CDL is required for vehicles designed to carry 16 or more passengers (including the driver) or for vehicles transporting hazardous materials that require placarding, when those vehicles do not qualify for Class A or B.

CDL fees vary by state and by the class and endorsements you obtain. Most states charge separate fees for the CDL knowledge test ($10–$30 per attempt), the CDL skills test ($50–$150), and the CDL license itself ($50–$100). Additional fees apply for each endorsement (HazMat, Tanker, Passenger, etc.). The HazMat endorsement also requires a TSA security threat assessment fee of approximately $86. Check your Delaware DMV website for current fee schedules.

Federal regulations (49 CFR 383.133) require that CDL applicants be able to read and speak the English language sufficiently to understand highway traffic signs and signals and to respond to official inquiries. Many states offer CDL knowledge tests in Spanish and other languages for non-commercial knowledge questions, but the actual CDL test must be taken in a language that allows the driver to meet the English proficiency requirement. Check with the Delaware DMV for available language options.

In most states, a CDL is valid for 4–8 years (commonly 4–5 years). To renew your Delaware CDL, you typically need to visit a DMV office, pass a vision test, pay the renewal fee, and update your medical certification (DOT physical). If you hold a HazMat endorsement, your TSA background check must also be current. CDLs cannot generally be renewed online due to federal requirements for in-person verification of medical certification.

If you fail the CDL General Knowledge test in Delaware, you are typically required to wait a specified period (commonly 1–7 days) before retaking it. Most states allow 2–3 attempts before requiring additional waiting periods or study requirements. There is usually a retest fee for each attempt. Focus on the areas you missed — most states provide a score sheet showing which topic areas you need to review.