Commercial Driver's License (CDL) CDL Fundamentals, Licensing, and Federal Regulations Syllabus

What is the general knowledge (written) test and who must take it for a CDL?

The general knowledge written test covers safe operation of CMVs and must be passed by every CDL applicant regardless of class. Additional written tests (air brakes, combination, and endorsement-specific) are required depending on the vehicle and endorsements sought.

What is Entry-Level Driver Training (ELDT) and who must complete it?

ELDT is FMCSA-mandated theory and behind-the-wheel training that must be completed by anyone obtaining a Class A or B CDL for the first time, upgrading a class, or obtaining a first-time S, P, or H endorsement, before taking the relevant skills/knowledge test.

What is the Training Provider Registry (TPR)?

The FMCSA's online database of approved ELDT training providers. Providers must be listed on the TPR, and they electronically submit a driver's training completion record to FMCSA before the driver can take the CDL skills test or hazmat knowledge test.

For which endorsement is ELDT theory-only (no behind-the-wheel) required?

The H (hazardous materials) endorsement requires only the ELDT theory training, not behind-the-wheel training, before taking the hazmat knowledge test.

What is self-certification of operation type and what are the two main categories a driver must choose?

When applying for or renewing a CDL/CLP, a driver must self-certify the type of commercial driving they perform, choosing one of four categories built from two pairs: interstate vs. intrastate, and non-excepted vs. excepted.

What is the difference between 'non-excepted interstate' and 'excepted interstate' self-certification?

Non-excepted interstate: the driver operates across state lines in commerce subject to the federal physical qualification rules and must maintain a valid Medical Examiner's Certificate. Excepted interstate: the driver operates interstate but only in activities excepted from the physical qualification requirements, so a medical certificate is not required to be on file.

What is the 'one driver, one license' rule?

A CDL holder may hold only a single driver's license at any time. They may not possess a CDL from more than one state (no multiple licenses to hide violations).

What is CDLIS and what purpose does it serve?

The Commercial Driver's License Information System is a nationwide database linking all states. It ensures each commercial driver has only one license and one complete driving record, allowing states to check an applicant's history before issuing a CDL.

List the major offenses that result in CDL disqualification.

Examples include: DUI/driving with BAC of 0.04+ in a CMV, refusing a required alcohol/drug test, leaving the scene of an accident, using a CMV to commit a felony, driving a CMV while the CDL is revoked/suspended/disqualified, and causing a fatality through negligent driving.

What is the disqualification period for a first major offense versus a second major offense?

A first major offense disqualifies the driver for 1 year (3 years if transporting placardable hazmat). A second major offense results in a lifetime disqualification (which may be reducible to 10 years under certain reinstatement provisions).

What is the disqualification penalty for using a CMV to commit a felony involving controlled substances (manufacturing/distributing)?

A lifetime disqualification with no possibility of the 10-year reinstatement that applies to other lifetime disqualifications.

What is considered a 'serious traffic violation' for CDL purposes?

Examples: excessive speeding (15+ mph over the limit), reckless driving, improper or erratic lane changes, following too closely, traffic violations connected with a fatal accident, driving a CMV without the proper class of CDL or endorsement, and texting or using a hand-held phone while driving.

What are the disqualification periods for serious traffic violations?

A second serious traffic violation within 3 years (in separate incidents) = 60-day disqualification. A third or subsequent serious violation within 3 years = 120-day disqualification. (A single serious violation alone does not disqualify.)

What is an out-of-service (OOS) order and how does violating it affect the CDL?

An OOS order requires a driver or vehicle to stop operating due to a safety violation (e.g., hours-of-service or equipment). Driving in violation of an OOS order results in disqualification: 180 days to 1 year for a first violation, 2 to 5 years for a second within 10 years, and 3 to 5 years for a third or more.

What are the disqualification periods for railroad-highway grade crossing violations?

First violation = at least 60 days; second violation within 3 years = at least 120 days; third or subsequent within 3 years = at least 1 year.

When must a CDL driver notify their employer of a traffic conviction?

A driver must notify the employer within 30 days of a conviction for any traffic violation (other than parking), in any type of vehicle, in any state.

When must a driver notify their employer of a license suspension, revocation, or disqualification?

By the end of the next business day after receiving notice that their license/permit/privilege to drive has been suspended, revoked, canceled, or that they have been disqualified or placed out of service.

What is a DOT physical and the Medical Examiner's Certificate (MEC)?

The DOT physical is a medical exam performed by a certified medical examiner to confirm a driver is physically qualified to operate a CMV. Passing it results in a Medical Examiner's Certificate (MEC, Form MCSA-5876), often called a 'medical card.'

How long is a standard DOT Medical Examiner's Certificate valid?

Up to 24 months (2 years) maximum. The examiner may certify for a shorter period (e.g., 1 year, 3 months) if a condition such as high blood pressure requires more frequent monitoring.

Who must perform a DOT physical exam for it to be valid?

A medical examiner listed on the FMCSA National Registry of Certified Medical Examiners.

What is the FMCSA Drug and Alcohol Clearinghouse?

A secure online national database that contains records of CDL drivers' drug and alcohol program violations (positive tests, refusals, etc.). Employers must query it before hiring and at least annually for current drivers.

What does an employer's annual Clearinghouse query verify about a driver?

It verifies whether the driver has any unresolved drug or alcohol program violations that would prohibit them from performing safety-sensitive functions (such as driving a CMV).

What blood alcohol concentration is prohibited while operating a CMV, and what is the consequence of driving at or above it?

A BAC of 0.04% or higher is prohibited. Driving a CMV with a BAC of 0.04+ is a major offense resulting in at least a 1-year CDL disqualification (3 years if carrying hazmat).

What happens if a CMV driver is detected with any measurable alcohol (0.02 to 0.039 BAC) on duty?

The driver must be removed from safety-sensitive duty for at least 24 hours. It is not a disqualifying violation, but the driver cannot perform driving functions for 24 hours.

What is the consequence of refusing to submit to a required drug or alcohol test?

Refusal is treated the same as a positive/failed test. It is a major offense leading to CDL disqualification (minimum 1 year, 3 years for hazmat) and entry into the Clearinghouse.

What are the four primary situations in which a CDL driver may be drug and/or alcohol tested?

Pre-employment, random, post-accident, and reasonable-suspicion testing. (Return-to-duty and follow-up testing also apply after a violation.)

What type of testing is required before a driver first performs safety-sensitive functions, and what does it cover?

Pre-employment testing, which requires a negative controlled-substances (drug) test result before the driver may operate a CMV. (Alcohol pre-employment testing is permitted but not federally required.)

What is reasonable-suspicion testing and what triggers it?

Testing required when a trained supervisor observes specific, articulable signs and symptoms (appearance, behavior, speech, body odors) indicating drug or alcohol use. The observations must be documented.

When is post-accident drug and alcohol testing required for a CMV driver?

When the accident involves a fatality, or when the driver is cited for a moving violation and the crash results in a vehicle being towed away or someone needing immediate medical treatment away from the scene. Alcohol testing should occur within 8 hours and drug testing within 32 hours.

What is the purpose of random drug and alcohol testing and how are drivers selected?

To deter substance use through unannounced testing. Drivers are selected by a scientifically valid random method (e.g., computer-generated) so every driver has an equal chance each selection period; employers must meet FMCSA minimum annual testing rates.