CLP CDL Rules and Regulations 2

Question 1

Under federal regulations, how long must a CDL holder wait after a DUI conviction before applying for a CDL or operating a CMV?

Accepted Answer

1 year

Answer

A first DUI conviction results in a one-year CDL disqualification under federal regulations.

Question 2

Which of the following is considered a 'serious traffic violation' that can lead to CDL disqualification?

Accepted Answer

Speeding 15+ mph over the limit in a CMV

Answer

Speeding 15 or more mph over the posted limit while operating a CMV is classified as a serious traffic violation under 49 CFR Part 383.

Question 3

What is the minimum age requirement to obtain a CDL and operate a commercial motor vehicle in interstate commerce?

Accepted Answer

21 years old

Answer

Drivers must be at least 21 years old to operate a CMV in interstate commerce.

Question 4

A CDL holder convicted of a railroad-highway grade crossing violation will face a minimum disqualification of:

Accepted Answer

60 days for a first offense

Answer

A first railroad-highway grade crossing violation results in a minimum 60-day CDL disqualification.

Question 5

A CDL driver who refuses to submit to a blood alcohol concentration (BAC) test when lawfully requested is treated as:

Accepted Answer

Having a BAC at or above the legal limit

Answer

Refusing a BAC test is treated the same as failing the test under implied consent laws, resulting in CDL disqualification.

(CLP) Commercial Learner's Permit Practice Test