KS CDL General Knowledge
Kansas Commercial Driver's License (CDL) General Knowledge
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ExploreAbout this exam
The Kansas Commercial Driver's License (CDL) General Knowledge credential is issued by the Kansas Department of Revenue, Division of Vehicles, and is required to operate commercial motor vehicles on Kansas roads. Under Kansas rules, you must hold a CDL to operate any single vehicle with a gross vehicle weight of 26,001 pounds or more, or a combination vehicle with a gross combination weight rating of 26,001 pounds or more. The credential is aimed at drivers of tractor-trailers, straight trucks, buses, tank vehicles, and other heavy or specially configured vehicles, including non-domicile applicants who qualify through specific visa categories. Kansas knowledge testing draws on the Commercial Driver's License Handbook, which covers vehicle inspection, basic control, shifting, backing, seeing hazards, hazard perception, railroad crossings, emergency maneuvers, and the air brake and combination vehicle systems tested in the endorsement knowledge exams. Hazardous materials applicants face additional Entry-Level Driver Training requirements before testing. Preparation should center on the Kansas CDL Handbook, followed by repeated practice on endorsement-specific material. Candidates should also confirm medical certification status, because effective 6/2/2025 Kansas no longer manually enters medical examiner's certificates and instead relies on electronic submission from the National Registry of Certified Medical Examiners. After passing knowledge exams, candidates schedule a skills test at a Kansas CDL testing office, since scheduling is necessary to guarantee an examiner is available.
What you'll study
About KS CDL General Knowledge preparation
What weight requires a Kansas CDL?
Kansas requires a CDL for any single vehicle with a gross vehicle weight of 26,001 pounds or more, or any combination vehicle with a gross combination weight rating of 26,001 pounds or more. If your vehicle falls below both thresholds, a CDL is generally not required, though other rules may still apply.
How long does the CDL skills test take?
According to the Kansas Division of Vehicles, a CMV skills test can take from one hour to one and one half hours depending on conditions. Plan extra time for arrival, paperwork, and vehicle inspection, and confirm availability with the testing facility in advance because schedules vary with business conditions.
Do I need an appointment for the skills test?
Yes. Kansas states that scheduling is necessary to ensure a CDL examiner is available to administer the test. Call a CDL testing facility in advance to determine test availability, since testing schedules vary depending on business conditions. Skills test and test examiners may also be monitored for quality control purposes.
What changed with medical certificates in Kansas?
Effective 6/2/2025, Kansas no longer manually enters your medical examiner's certificate. The information must come electronically from the National Registry of Certified Medical Examiners. Make sure your examiner submits electronically, and use the Kansas medical certification resources if your record does not update as expected.
What is the S endorsement and do I need it?
Kansas created the S endorsement for school bus drivers to comply with federal law. You need it only to operate school buses, or buses contracted by a school district to transport school children. City buses and other non-school transport buses do not require the S endorsement.
What tests are required for the S endorsement?
If you already hold the P endorsement, you must pass an S endorsement knowledge test and a road test in a school bus representative of the type you will drive. If you do not hold the P endorsement, you must also pass the P endorsement knowledge test before adding S.
Can non-U.S. residents get a Kansas CDL?
Kansas issues a Non-Domicile CDL to individuals who hold an H2A, H2B, or E2 visa, along with a valid passport and either an I-94 or I-797A. Gather those documents before visiting a driver licensing office so the issuance process is not delayed.
Does Kansas have CDL reciprocity with nearby states?
Yes. Kansas has entered into reciprocity agreements with Nebraska and Missouri relating to CDL requirements and farm use, and also publishes a Kansas-Oklahoma reciprocity document exempting CDL requirements for farmers. Review the specific agreement if you operate farm equipment across state lines.
What should I study first?
Start with the Kansas Commercial Driver's License Handbook, which is the state's own study reference. Master general knowledge, air brakes, and combination vehicles before adding endorsements, and review hazardous materials Entry-Level Driver Training requirements early if you plan to pursue the H endorsement.