Published: July 23, 2026
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To drive a B double in Victoria you need an MC (Multi-Combination) licence from VicRoads - not an HC. This is the most common mistake people make when asking about a B double licence. An HC licence covers single semi-trailers only. The MC licence is what puts you behind the wheel of a B double, and to get it you need to already hold your HC and have at least 12 months of heavy vehicle licence history behind you.
TDT offers the MC licence course (TLILIC3018) in Victoria - the nationally recognised training that covers B doubles and all multi-combination vehicles. The course runs for one day and covers both the theory and practical assessment you need to apply for your VicRoads MC licence.
A B double is a prime mover coupled to two semi-trailers. The key feature is how the trailers connect - the lead trailer has a fifth wheel coupling built into its rear, and the second trailer sits directly on that coupling. There is no dolly, no drawbar, no extra axle group between them. That direct coupling is what makes it a B double and not an A double or a road train.
B doubles are the most common multi-trailer combination on Australian highways. There are estimated to be over 10,000 operating across the country every day. They first arrived in Western Australia and Victoria in the early 1980s, and by the mid-1990s every state had approved them. Under the NHVR classification, B doubles are Class 2 heavy vehicles.
The difference is in how the second trailer connects to the first. On a B double, the second trailer sits directly on a fifth wheel coupling on the rear of the lead trailer. On an A double, the second trailer connects via a converter dolly - a separate axle group with a drawbar that acts like an extra set of wheels between the two trailers.
B doubles are shorter, more manoeuvrable, and more widely approved on Australian highways. A doubles are longer, carry more, and are mostly found in outback road train configurations in WA, NT, QLD, and SA.
| Feature | B Double | A Double |
|---|---|---|
| Trailer connection | Fifth wheel coupling on lead trailer - no dolly | Converter dolly with drawbar between trailers |
| Max length | 26 metres | Varies by state - typically up to 36.5 metres as part of a longer combination |
| Network access | Approved highways nationally under NHVR Class 2 notice | Mostly restricted to outback and regional routes under Class 3 or PBS |
| Common use | Interstate freight, FMCG, refrigerated, fuel, general freight on major highways | Bulk agriculture, livestock, outback freight in WA, NT, QLD, SA |
| Licence in Victoria | MC licence (VicRoads) | MC licence (VicRoads) |
| Commonality | Very common - over 10,000 on Australian roads daily | Less common - primarily remote/outback operations |
There are no shortcuts on this pathway. Each step requires you to hold the previous licence before you can move on. The fastest possible timeline from a car licence to MC in Victoria is around two years - one year holding HR, then get HC, then book MC training.
| Requirement | Detail |
|---|---|
| Current HC licence | Must hold a current VicRoads Heavy Combination (HC) licence. No exceptions. |
| 12 months heavy vehicle history | Must have held an HR or HC licence for a minimum of 12 months combined before applying for MC. If you got your HR and then went straight to HC, the HR time counts. |
| Eyesight requirements | Must meet VicRoads eyesight standards. A commercial driver medical may be required depending on your circumstances. |
| No current disqualification | Must not be currently disqualified from driving in Australia or subject to a Fines Victoria sanction. |
| LLND assessment | Some RTOs require a Language, Literacy, Numeracy and Digital assessment as part of the nationally recognised training pathway. |
The MC licence is just the final step - the full cost of getting to B double level includes every licence on the pathway. If you are starting from a car licence with no heavy vehicle experience, budget for the full pathway cost. If you already hold an HR licence, you are two steps away.
B doubles in Victoria can only travel on roads approved for their use. The authoritative source for Victorian B double routes is the NHVR National Network Map, available at maps.nhvr.gov.au. The map uses a traffic light colour system - green for approved access, amber for conditional access, and red for restricted roads. The network is updated regularly and can change without notice.
B doubles travelling on the approved network under the National Class 2 B-double Authorisation Notice do not need an individual permit. If your route includes roads not on the approved network, you need to apply for an NHVR access permit before you travel. Rail and tram crossings in Victoria also require separate ODL crossing permits for vehicles over certain limits.
These are the main freight corridors used by B double operators in Victoria. All are on the approved NHVR network but conditions and weight limits can vary. Check the map for current status.
Melbourne to Sydney. The busiest B double corridor in Australia. Approved for B doubles throughout. Major staging points at Wodonga, Albury, and Gundagai.
Melbourne to Adelaide via Geelong and Ballarat. Key corridor for South Australia freight. B double approved on freeway sections.
Melbourne to Bendigo and into the Mallee. Connects to the Sunraysia Highway for Mildura and NSW border freight.
Approved B double access on sections of the Western Ring Road and metropolitan ring roads for port and distribution centre access. Check map for specific conditions.
B double driving is long-haul, high-responsibility work. You are managing 26 metres and up to 68.5 tonnes on Australian highways, often through the night, across multiple states, and under strict fatigue management requirements. The coupling, uncoupling, and manoeuvring of two trailers requires a level of skill and awareness that goes well beyond a single semi.
Most B double roles are interstate freight - Melbourne to Sydney, Melbourne to Adelaide, Melbourne to Brisbane - and involve a mix of highway driving, depot loading and unloading, and fatigue management under the Heavy Vehicle National Law. Many B double drivers keep a work diary for runs of more than 100km from their home base.
B double drivers earn well above the general truck driver average. The combination of MC licence, interstate driving, fatigue management compliance, and the skill involved in managing two trailers makes B double roles some of the better-paid driving jobs in the country. Night and weekend penalty rates under the Road Transport Award add to the base figures below.
| Source | Reported Figure | Notes |
|---|---|---|
| Jora - Victoria (2026) | $105,000/yr average | Based on SEEK job ad salary disclosures, last 3 months |
| Jora - Melbourne (2026) | $120,000/yr average | Melbourne-specific B double driver roles - includes some packages with super |
| Jora - NSW (2026) | $110,000/yr average | Based on SEEK job ad salary disclosures, last 3 months |
| SEEK (July 2026) | 314 active B double listings | Strong national demand; VIC, NSW, QLD the main markets |
The courses and guides that get you to B double level - and where to go next:
Head of Sales & Business Development
Chris writes about trucking, logistics, and transport industry trends.
