CLP CDL Rules and Regulations 3 — Questions and Answers
Question 1: A driver holding a Class A CDL may legally operate which of the following vehicles?
- Any vehicle requiring a Class B or Class C CDL only
- Any CMV with a GVWR of 26,001+ lbs towing a unit over 10,000 lbs GVWR (Correct answer)
- Only straight trucks over 26,000 lbs
- Passenger vehicles with 16+ passengers only
Correct answer: Any CMV with a GVWR of 26,001+ lbs towing a unit over 10,000 lbs GVWR
A Class A CDL covers combination vehicles with a GCWR of 26,001 lbs or more, where the towed unit exceeds 10,000 lbs GVWR.
Question 2: What is the legal BAC limit for CDL holders operating a commercial motor vehicle?
- 0.08%
- 0.06%
- 0.04% (Correct answer)
- 0.02%
Correct answer: 0.04%
The federal BAC limit for CDL holders operating a CMV is 0.04%, half the standard 0.08% limit for non-commercial drivers.
Question 3: Under the 'one license' rule, a CDL holder who also has a regular driver's license from another state must:
- Carry both licenses at all times
- Surrender their regular license and maintain only the CDL state license (Correct answer)
- Notify both states but keep both licenses active
- Only surrender the license from the state with less coverage
Correct answer: Surrender their regular license and maintain only the CDL state license
Federal law prohibits a person from having more than one driver's license; CDL holders must consolidate to a single license.
Question 4: Which endorsement is required to transport hazardous materials requiring placards?
- T endorsement
- N endorsement
- H endorsement (Correct answer)
- X endorsement
Correct answer: H endorsement
The H endorsement authorizes a CDL holder to transport hazardous materials that require placarding under federal regulations.
Question 5: A CDL driver is disqualified for life (with no possibility of reinstatement) if convicted of:
- Two serious traffic violations within 3 years
- Using a CMV in the commission of a felony involving a controlled substance (Correct answer)
- Three railroad crossing violations within 3 years
- Leaving the scene of a minor fender-bender
Correct answer: Using a CMV in the commission of a felony involving a controlled substance
Using a CMV in the commission of a felony involving manufacturing, distributing, or dispensing a controlled substance results in a lifetime CDL disqualification with no reinstatement.
Question 6: When a CDL holder's license is suspended in their home state, what happens to their privilege to drive a CMV in other states?
- They may still drive in states where they have no violations
- They may only drive in neighboring states
- They lose CMV driving privileges in all states (Correct answer)
- Nothing changes in other states until notified
Correct answer: They lose CMV driving privileges in all states
A CDL suspension in the home state means the driver loses the privilege to operate a CMV in all states due to federal reciprocity requirements.
Question 7: Which of the following actions requires a CDL driver to notify their employer within 30 days?
- Changing their home address
- Receiving any traffic conviction in any vehicle (Correct answer)
- Purchasing a new personal vehicle
- Completing a defensive driving course
Correct answer: Receiving any traffic conviction in any vehicle
CDL drivers must notify their employer within 30 days of any traffic conviction, regardless of what vehicle they were driving.
CLP CDL Rules and Regulations 3
A driver holding a Class A CDL may legally operate which of the following vehicles?