NZ Class 5 Licence Theory Test: Requirements and How to Prepare

A Class 5 licence is the highest standard heavy vehicle licence in New Zealand, covering heavy combination vehicles — typically a truck and trailer combination with a gross combined mass (GCM) over 25,000kg. If you're researching the "Class 5 theory test," it helps to understand how Class 5 fits into the wider licence structure before you start studying.

How You Get to Class 5

Class 5 isn't a standalone starting point — it builds on Class 4. You generally need to already hold a full Class 4 licence, and have held it for a minimum period (commonly cited as at least 6 months), before you're eligible to apply for Class 5. In practice, that means the path usually runs Class 2 → Class 4 → Class 5, with each step requiring time held on the previous class. Exact current holding periods, age requirements and any approved-course requirements are set by NZTA and can change, so confirm them with NZTA or an NZTA-approved driver licensing agent before you plan around them.

Where the Theory Knowledge Comes From

The heavy-vehicle theory knowledge tested for Class 2 and Class 4 — load limits, work time and logbooks, dangerous goods, vehicle checks, and how a heavy vehicle handles and stops — is the same foundation Class 5 drivers are expected to know, since a combination vehicle adds to that knowledge rather than replacing it. On top of that, a combination vehicle brings its own handling topics worth knowing well before you're behind the wheel of one:

• Jackknifing — the trailer swinging out of line with the towing vehicle, usually from braking too hard while turning.
• Off-tracking — the trailer's wheels cutting corners tighter than the front of the vehicle, which is why combinations need extra room at intersections.
• Coupling checks — confirming the coupling is locked and the trailer's brake and light connections work before you move off.
• Stopping distance — the combined mass of vehicle, trailer and load means even longer stopping distances than a rigid heavy vehicle.
• Reversing — steering a trailer is counter-intuitive and takes more care than reversing a rigid vehicle.

How to Prepare

1. Work through the shared Road Code topic tests if you haven't already — the foundation is still general road rules.
2. Use the Class 2 heavy vehicle test to revise the heavy-vehicle knowledge that carries through to Class 5.
3. Take our Class 5 test for the combination-specific topics — jackknifing, off-tracking, coupling checks and trailer handling.
4. Take the heavy vehicle mock exam to practise the full 35-question format under test conditions.
5. Check directly with NZTA or a driver licensing agent on the current experience, course and application requirements specific to Class 5, since these sit outside what a practice theory test can cover.

Where to Practise

• Heavy Vehicles Class 2 practice test
• Heavy Vehicles Class 5 practice test
• NZ Heavy Vehicle Mock Exam
• All heavy vehicle practice tests
• Also read our guide to the Class 4 licence theory test.

This article is an unofficial study guide. Licensing rules, weight thresholds and experience requirements can change, so confirm the current requirements for your licence with the NZ Transport Agency (NZTA) or an NZTA-approved driver licensing agent before you book.