How many questions are on the Newfoundland and Labrador commercial knowledge test?

The Newfoundland and Labrador commercial test has 30 multiple-choice questions covering rules of the road, federal Hours-of-Service, air-brake systems, pre-trip inspection, and cargo securement. You need at least 24 correct (80%) to pass. The test is administered by Motor Registration Division (MRD) with no formal time limit.

Is mandatory training required for the Newfoundland and Labrador commercial licence?

Mandatory training requirements vary; check with Service NL.

What's the federal Hours-of-Service rule?

The federal Hours-of-Service regulation (SOR/2005-313) applies to commercial drivers operating across provinces. South of 60° latitude, you're limited to 13 hours of driving, 14 hours on-duty, and a 16-hour driving window per shift. Cycle limits are 70 hours on-duty in 7 days or 120 hours in 14 days, after which a 36-hour reset is required. Electronic logging devices (ELDs) are mandatory for federally-regulated carriers since June 2021.

Do I need an air-brake endorsement to drive a Class 1 vehicle?

Yes, in practice. Most Class 1 (tractor-trailer) vehicles use air-brake systems, and operating one without the air-brake endorsement is a serious infraction. The endorsement is typically a separate qualification involving an air-brake course, written test, and practical demonstration. In this province, it is simply called the air brake endorsement.

What's the BAC limit for commercial drivers?

Zero. Commercial drivers in Newfoundland and Labrador (and across Canada) face a 0.00 BAC requirement at all times when operating a commercial vehicle. Even traces of alcohol, regulated medications, or cannabis can result in licence suspension and significant fines. This is stricter than the standard 0.05 administrative threshold for non-commercial drivers and reflects the increased risk of operating heavy vehicles.

Newfoundland and Labrador Commercial Licence Practice

The Newfoundland and Labrador commercial knowledge test has 30 questions and requires a 80% score to pass. Prepare section by section: general knowledge, air brake, licence classes, and dangerous goods (TDG), all labelled for Newfoundland and Labrador.

Last verified May 2026·Newfoundland and Labrador Commercial Driver's Handbook

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330+ practice questions to help you master the Newfoundland and Labrador knowledge test, 4 themed practice runs, plus a full mock exam.

NEWFOUNDLAND AND LABRADOR REQUIREMENT TO PASS

30 questions on the real test, 80% passing score (24 of 30), no time limit

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Newfoundland and Labrador commercial test sections

The commercial exam is a general knowledge test plus separate section and endorsement tests. Pick a section to start a focused practice test or drill.

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Everything to know about the Class 1 written test

Newfoundland and Labrador's commercial knowledge test covers the rules and operating standards for class 1 (tractor-trailer). The test has 30 multiple-choice questions and you need at least 24 correct answers (80%) to pass. It's administered by Motor Registration Division (MRD) with no formal time limit. Newfoundland uses numerical classes 1 through 4 plus an air-brake endorsement.

Federal Hours-of-Service rules (SOR/2005-313) apply to commercial drivers across Canada and are a major topic on the test. Drivers operating in the South of 60° latitude are limited to 13 hours of driving, 14 hours on-duty, and a 16-hour driving-window in a single shift. After 70 hours on-duty in a 7-day cycle (or 120 hours in a 14-day cycle), you must take 36+ hours off. Logbooks (paper or electronic - ELDs are now mandatory for federally-regulated carriers) must be kept current.

Air-brake systems are fundamental to most heavy commercial vehicles and operate on a different principle than hydraulic brakes - air pressure releases spring-loaded brakes rather than applying them. Loss of air pressure causes spring-brake application, which is why the system "fails safe." The test covers air-brake fundamentals: governor cut-in/cut-out pressure (typically 100-125 psi), low-air warning thresholds (≈60 psi), spring-brake application thresholds (≈20-45 psi), and slack adjuster inspection.

Pre-trip inspection is one of the most important duties of a commercial driver and is heavily tested. A complete pre-trip covers: tires (tread depth, sidewall damage), wheels (lug nut visual check), brakes (slack, drum/rotor inspection, hose integrity), lights, mirrors, fluids, fifth wheel, kingpin, and trailer connections. Newfoundland and Labrador commercial drivers who fail to perform pre-trip inspections face significant fines and can lose their commercial endorsement.

Cargo securement follows the federal National Safety Code (NSC) Standard 10 and is uniform across Canada. The standard specifies minimum tie-down requirements based on cargo weight, type, and trailer configuration. Hazardous-materials transport falls under the Transportation of Dangerous Goods (TDG) Regulations and requires additional certification beyond the basic Class 1 endorsement. Drivers transporting TDG-classified loads must carry shipping documents, display proper placards, and complete TDG-specific training every 36 months.

Brushing up on Canadian road signs? Our sign-specific practice covers every regulatory, warning, and information sign you'll see on the test.

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