Heavy Vehicle Offences SA: HVNL Charges, Penalties and Defence
Heavy vehicle offences in South Australia
A heavy vehicle charge can put a driver’s licence and an operator’s accreditation at risk at the same time. Talon Legal acts for drivers, owner drivers, operators and executives facing Heavy Vehicle National Law prosecutions, NHVR investigations and South Eastern Freeway charges across South Australia. Every hour matters: book a same-day free 30-minute consultation or call (08) 7094 2021 now.
Heavy vehicle charge snapshot
| Issue | Position in South Australia |
|---|---|
| Governing law | The Heavy Vehicle National Law, which applies in South Australia as the Schedule to the Heavy Vehicle National Law (South Australia) Act 2013 (SA). The Road Traffic Act 1961 (SA) for the South Eastern Freeway truck and bus offences, and the Motor Vehicles Act 1959 (SA) for demerit points and disqualification. |
| What counts as a heavy vehicle | A vehicle with a gross vehicle mass or aggregate trailer mass over 4.5 tonnes, or a combination that includes one (section 6). Work and rest hours and work diaries apply to fatigue-regulated heavy vehicles: a motor vehicle or combination with a gross vehicle mass over 12 tonnes, or a fatigue-regulated bus (section 7 and regulation 73 of the Heavy Vehicle (General) National Regulation). |
| Who brings the charge | The National Heavy Vehicle Regulator or South Australia Police. Every South Australian police officer is an authorised officer under the Law (section 10(b) of the 2013 Act). |
| Which court | The Magistrates Court hears almost every charge. Category 1 offences under section 26F, and executive due diligence offences carrying the same penalty, are indictable, and section 707 decides when they must go through committal. |
| Time limit to prosecute | For an offence that is not indictable: within 2 years after the offence, or within 1 year after it comes to the complainant's knowledge but within 3 years after the offence (section 707A). |
| Risk categories | Mass, dimension and loading breaches are minor, substantial or severe. Work and rest hours breaches add a fourth category, critical. The category sets the maximum penalty and whether demerit points apply. |
| Penalty range | From a $212 infringement for some record keeping breaches to $436,850 or 5 years imprisonment for an individual, and $4,230,550 for a corporation, for a Category 1 offence. |
| Demerit points | 3 for a severe and 4 for a critical work and rest hours breach, 3 for driving while impaired by fatigue or unfit to drive, and 6 for each South Eastern Freeway offence (Motor Vehicles Regulations 2025 (SA), Schedule 4). |
| The 1 August 2026 changes | The fatigue offence in section 228 now covers every heavy vehicle and unfitness to drive, alternative compliance hours replace BFM and AFM for new accreditations, and several maximum penalties changed. The date of the alleged offence decides which version applies, and an accreditation in force before that date stays under the former Law (section 761). |
| Freeway disqualification | A court that convicts a driver of a South Eastern Freeway offence must disqualify for at least 6 months for a first offence, and the minimum cannot be reduced (Road Traffic Act, section 45C(3)). |
| First step | Same-day free 30-minute consultation. Call (08) 7094 2021. |
Charged with a heavy vehicle offence in South Australia?
Heavy vehicle offences in South Australia are prosecuted mainly under the Heavy Vehicle National Law (the Law), which applies here as the Heavy Vehicle National Law (South Australia) under section 4 of the 2013 Act. Truck and bus offences on the South Eastern Freeway sit in the Road Traffic Act 1961 (SA). This page states the Law as amended from 1 August 2026, and flags where an offence before that date is treated differently.
Detailed guides cover fatigue and work diary offences, mass, dimension and loading breaches, chain of responsibility prosecutions, heavy vehicle speeding and the South Eastern Freeway and truck driver licence appeals. If you were searching for a heavy vehicle lawyer in Adelaide, this page is the place to start. It sits within our Traffic Lawyers Adelaide practice.
Free Consultation. Talk to a lawyer before you pay an infringement notice or answer an NHVR request for information. Book a same-day free 30-minute consultation or call (08) 7094 2021.
On this page
- Which heavy vehicle charge are you facing?
- How does the Heavy Vehicle National Law apply in South Australia?
- What is the chain of responsibility?
- What are the fatigue and work diary offences?
- What are mass, dimension and loading offences?
- How do maximum penalties work under the Law?
- What happens if a truck speeds on the South Eastern Freeway?
- How similar matters tend to play out
- How do South Australian courts sentence heavy vehicle offences?
- What else can a court order?
- What powers do police and NHVR officers have?
- What changed on 1 August 2026?
- What happens after a heavy vehicle charge is laid?
- Can a heavy vehicle offence cost a licence?
- Who we act for
- How we defend a heavy vehicle charge
- Heavy vehicle case law in South Australia
- Frequently asked questions
Which heavy vehicle charge are you facing?
Each guide below covers the elements, the penalties and the defences that run for that charge. Start with the section named on the notice or the charge.
Driver hours and road rules
Fatigue and work diary offences
Sections 228, 250 and 293. Driving while impaired by fatigue or unfit, work and rest hours, and the work diary.
Heavy vehicle speeding and the South Eastern Freeway
Section 45C of the Road Traffic Act. The 10 km/h margin, the low gear rule and mandatory disqualification.
Vehicle and load
Mass, dimension and loading offences
Sections 96, 102 and 111. Overloading, oversize loads and load restraint, graded by risk.
Business, executives and licences
Chain of responsibility
Sections 26C to 26H. The primary duty, executive due diligence and Category 1 to 3 offences.
Truck driver licence appeals
Demerit points, freeway disqualifications and the options that remain for a professional driver.
Drivers licence offences
Driving while disqualified or unlicensed, and the other charges that can follow a disqualification.
How does the Heavy Vehicle National Law apply in South Australia?
The Law is national legislation that South Australia applies as its own. Section 4 of the 2013 Act applies the South Australian text of the Law as a law of this State. Section 5 lets the Governor amend that text by regulation to keep it in line with amendments made in Queensland. The changes that commenced on 1 August 2026 came into the South Australian text through the Heavy Vehicle National Law (South Australia) (Amendment of Law) Regulations 2026.
Two definitions decide which rules apply. A heavy vehicle is a vehicle with a gross vehicle mass or aggregate trailer mass of more than 4.5 tonnes, or a combination that includes one (section 6). A fatigue-regulated heavy vehicle is a motor vehicle or combination with a gross vehicle mass above the figure prescribed by the national regulations, or a fatigue-regulated bus, subject to the exclusions in section 7(2). Before 1 August 2026 the 12 tonne figure sat in section 7 itself, as the Supreme Court noted in Obst ([16]). It now comes from regulation 73 of the Heavy Vehicle (General) National Regulation, which prescribes the same 12 tonnes.
Section 10 of the 2013 Act fills in the local details. Every police officer is an authorised officer, and the Expiation of Offences Act 1996 (SA) governs infringement notices. The Administrative and Disciplinary Division of the District Court is the relevant tribunal or court for reviews and appeals, except for sections 556 and 590D, where it is the Magistrates Court. The Australian Road Rules are the road rules for the purposes of the Law.
What is the chain of responsibility?
The chain of responsibility makes everyone who controls or influences a heavy vehicle’s transport activities answerable for their safety. Section 5 names ten parties: the employer of an employed driver, the prime contractor of a self-employed driver, the operator, the scheduler, and the consignor, consignee, packer, loading manager, loader and unloader of any goods in the vehicle. A driver is a party only by also filling one of those roles.
Each party owes the primary duty in section 26C: to make sure, so far as is reasonably practicable, of the safety of its transport activities relating to the vehicle. That includes eliminating public risks or, where that is not reasonably practicable, minimising them. It also includes not causing or encouraging the driver to break the Law or exceed a speed limit.
Executives carry a separate duty. Under section 26D an executive of a legal entity must exercise due diligence to make sure the entity complies with its safety duties, and can be convicted whether or not the entity is proceeded against. From 1 August 2026, section 26D(1a) states that an executive’s failure in relation to the primary duty carries the penalty for the corresponding Category 1, 2 or 3 offence by an individual. A failure at the Category 1 level is now an indictable offence (section 5). The duty does not apply to an executive acting as a volunteer.
Breaches of the primary duty are graded into three categories. The amounts below are the Regulator’s published figures for 1 August 2026 to 30 June 2027.
| Category | What the prosecution must prove | Maximum (individual) | Maximum (corporation) |
|---|---|---|---|
| Category 1, section 26F | A safety duty, conduct without reasonable excuse that exposes a person to a risk of death or serious injury or illness, and recklessness as to that risk | $436,850, 5 years imprisonment, or both | $4,230,550 |
| Category 2, section 26G | A failure to comply with the duty that exposes a person, or a class of persons, to that risk | $212,090 | $2,120,880 |
| Category 3, section 26H | A failure to comply with the duty | $70,580 | $705,820 |
Under section 26F(2) the prosecution bears the burden of proving that the conduct was engaged in without reasonable excuse. Section 26E separately prohibits asking, directing or requiring a driver or another party, directly or indirectly, to do something the person knows or ought reasonably to know would cause the driver to speed, to drive while impaired by fatigue or unfit to drive, or to breach work and rest hours. It prohibits contracts with that effect as well, with a maximum of $28,230. Where a provision states only one maximum fine, as section 26E does, a body corporate can be fined up to five times that amount (section 596). From 1 August 2026, an audit of an operator’s safety management system by an approved auditor is admissible in proceedings for primary duty offences (section 632B).
What are the fatigue and work diary offences?
From 1 August 2026, a person must not drive a heavy vehicle on a road while impaired by fatigue or unfit to drive (section 228(1)). The offence now reaches every heavy vehicle over 4.5 tonnes. It covers a driver whose ability to drive safely is affected by fatigue, and a driver who is not of sufficiently good health or fitness to drive safely (section 225). The maximum is $28,230, with 3 demerit points. Before that date the offence applied only to fatigue-regulated heavy vehicles and to impairment by fatigue, with a lower maximum.
To decide whether a driver was impaired by fatigue or unfit to drive, a court may consider what those terms commonly mean, their causes and signs, and any relevant body of knowledge, such as codes of practice, standards, scientific knowledge and expert opinion (section 224). If the driver has already been convicted of a prescribed offence under another law for the same conduct, or the same kind of conduct on the same journey, the court must discharge the section 228 proceedings (section 228(2)).
Work and rest hours are a separate set of offences. A solo driver under standard hours commits an offence by working more than the maximum work time, or resting less than the minimum rest time, in any period the standard hours state (section 250(1)). Breaches are graded minor, substantial, severe or critical, and a severe breach carries 3 demerit points and a critical breach 4. For a 24-hour period, the Supreme Court in Obst described the levels then prescribed: more than 12 hours of work was a minor breach, more than 12.75 hours substantial, more than 13.25 hours severe, and more than 13.5 hours critical ([20]). Table 1 of Schedule 1 to the Heavy Vehicle (Fatigue Management) National Regulation (the fatigue regulation) sets the same levels today.
How time is counted often decides these cases. Section 247 counts each period forward from a fixed point, and Barnes, Ballantyne and Obst turned on it. Those cases construed the section as it stood before 1 August 2026, which counted from the end of a relevant major rest break. The current section counts from the end of the longest major rest break required in the period under the driver’s work and rest hours option, so their reasoning on counting needs care for later offences. In Barnes the Court also read maximum work time as the total of the hours worked in the period, not a continuous stretch ([32]), and that definition did not change.
Accreditation changes the hours. Basic and advanced fatigue management (BFM and AFM) give way to alternative compliance hours for accreditations approved from 1 August 2026 (sections 253 and 254). An accreditation in force immediately before that date continues under the former Law until it expires or is cancelled (section 761). The Motor Vehicles Regulations 2025 still list demerit points for the former BFM and AFM offences.
The work diary rules apply to a driver of a fatigue-regulated heavy vehicle who is doing, or in the last 28 days did, 100+km work under standard hours, or who is working, or in the last 28 days worked, under alternative compliance or exemption hours (section 291). The driver must keep a work diary that records the required information for each day in the previous 28 days, and must have it in their possession while driving (section 293(1)). The maximum is $14,120. Recording something in a work record that the person knows, or ought reasonably to know, is false or misleading carries $28,230 (section 325(1)).
What are mass, dimension and loading offences?
Mass, dimension and loading offences are breaches of the limits on a heavy vehicle’s weight, its size and how its load is placed and restrained. Each is framed as a duty on a person who drives the vehicle, or permits another person to drive it. That person must make sure the vehicle, its components and its load comply with the requirements that apply, unless the person has a reasonable excuse (sections 96, 102 and 111).
The breach category drives the penalty. A severe mass breach starts at 120 per cent of the permitted maximum mass (section 97), and the maximum for a severe breach adds $710 for every further 1 per cent over a 120 per cent overload, up to an extra $28,230. Where a court is not satisfied that a breach reached the category alleged, it may treat it as a lower category (section 595). In sentencing, the court must consider the implications and consequences of the breach set out in section 594. On a conviction for a severe risk breach it may cancel or suspend the registration of a vehicle of which the offender is the registered operator (section 598).
Dimension cases often turn on exemptions and permits. In Busbridge v Police the driver produced a code of practice and a gazette notice for agricultural machinery as his exemption ([9]). The Supreme Court accepted that the code still operated as an exemption by force of a transitional provision ([31]). It held that the code did not cover tyres that had been separated from an air seeder and loaded side by side beyond 2.5 metres ([72] to [74], [80]), and the appeal was dismissed ([100]).
How do maximum penalties work under the Law?
The Law states base amounts, and section 737 increases them each 1 July by a prescribed method, with the Regulator required to publish the amounts that apply. The figures below are the Regulator’s published amounts for 1 August 2026 to 30 June 2027, and this page is current to 24 October 2026. Many offences can be dealt with by an infringement notice for one tenth of the court maximum. None can where the maximum is $21,170 or more.
| Offence | Maximum court penalty | Infringement amount |
|---|---|---|
| Category 1 primary duty, section 26F | $436,850 or 5 years or both; corporation $4,230,550 | None |
| Category 2 primary duty, section 26G | $212,090; corporation $2,120,880 | None |
| Category 3 primary duty, section 26H | $70,580; corporation $705,820 | None |
| Prohibited requests and contracts, section 26E | $28,230 | None |
| Driving while impaired by fatigue or unfit to drive, section 228(1) | $28,230 | None |
| Solo driver standard hours, section 250(1) | Minor $4,230; substantial $8,480; severe $14,120; critical $21,170 | $423; $848; $1,412; none for critical |
| Work diary must be kept and carried, section 293(1) | $14,120 | $1,412 |
| False or misleading entry in a work record, section 325(1) | $28,230 | None |
| Mass, section 96(1) | Minor $5,630; substantial $8,480; severe $14,120 plus $710 for each further 1 per cent over 120 per cent, the extra capped at $28,230 | $563; $848; none for severe |
| Dimension, section 102(1) | No goods or passengers $5,630; with goods or passengers, minor $5,630, substantial $8,480, severe $14,120 | $563; $563 and $848; none for severe |
| Loading, section 111(1) | Minor $4,230; substantial $7,060; severe $14,120 | $423; $706; none for severe |
For sections 293(1) and 325(1), the Regulator’s schedule lists lower transitioned maximums of $8,480 and $14,120 for accreditations approved before 1 August 2026. Demerit points attach to the fatigue offence in section 228(1) (3 points) and to severe (3) and critical (4) work and rest hours breaches, as listed in Schedule 4 of the Motor Vehicles Regulations 2025 (SA). These are maximums, not going rates, and the court keeps a broad sentencing discretion.
What happens if a truck speeds on the South Eastern Freeway?
On the prescribed part of the South Eastern Freeway, a person must not drive a truck or bus at a speed exceeding a relevant speed limit by 10 km/h or more (section 45C(1) of the Road Traffic Act). Where a trucks and buses low gear sign applies, the driver must use a gear low enough to drive safely on that length of road without the primary brake (section 45C(2)). The prescribed road is a portion of the South Eastern Freeway, or adjacent land, defined by the regulations (section 45C(7)). Regulation 61A of the Road Traffic (Miscellaneous) Regulations 2014 (SA) prescribes the part used by traffic travelling north-west towards Adelaide, from about 500 metres north-west of the Waverley Ridge Road overpass to the stop line at the exit from the Freeway at the Cross Road, Glen Osmond Road, Portrush Road and Mount Barker Road intersection.
Each offence carries a maximum of $5,000 for a first offence and imprisonment for 2 years for a subsequent offence, plus 6 demerit points. The expiation fee is $1,263 for each offence (Schedule 4 of the 2014 Regulations). On conviction the court must disqualify the driver for at least 6 months for a first offence, at least 12 months for a second and at least 3 years for a subsequent offence. The minimum cannot be reduced, mitigated or substituted (section 45C(3)). Only convictions for offences committed in the previous 5 years count for that purpose (section 45C(4)).
Police have a separate power for a second or subsequent offence. Where a person is given an expiation notice for such an offence, or police reasonably believe one was committed, an officer may give a notice of licence disqualification or suspension (section 45D). For that power, previous offences expiated within 5 years count as well as convictions (section 45D(1a)). The notice takes effect when it is given unless the officer postpones it, and it ends at the latest 6 months after it starts, or earlier on one of the events section 45D lists, such as the charge being decided or withdrawn.
Where no expiation notice was given, or it was withdrawn, or the driver elected to be prosecuted, the driver can apply to the Magistrates Court under section 45E for an order that the notice does not disqualify or suspend. The court may make the order if satisfied, on the driver’s sworn oral evidence, that there is a reasonable prospect of acquittal, or that no charge has been laid although prosecutors have had a reasonable time. The Commissioner of Police is a party and may make submissions, but cannot cross-examine the driver.
How similar matters tend to play out
Three illustrations of how the Law and the cases combine on ordinary facts. They are not predictions. Outcome depends on the facts, the record, the plea and the court.
Lower range. A solo driver under standard hours is found to have worked 12 and a half hours in a 24-hour period, a minor breach under Schedule 1 of the fatigue regulation. The notice offered is a $423 infringement, with no demerit points. Paying it expiates the offence. Contesting it puts the counting in issue, because the period runs from a fixed starting point under section 247, and the work diary, telematics and run sheets may not agree.
Middle range. A driver is charged with a critical work and rest hours breach after a long run, together with a work diary charge. The critical breach alone carries up to $21,170 and 4 demerit points, which can take a driver with existing points to 12 or more and a disqualification of 3 to 5 months under section 98BC of the Motor Vehicles Act. A trifling argument is unlikely to succeed on hours like those in Obst, where the Court gave the explanation limited weight ([39], [41]). The work then turns to the sentencing range, the driver’s record, the steps taken since, and the choice under section 98BE between the disqualification and a 12 month good behaviour condition.
Upper range. A driver dies in a crash after a run scheduled beyond the hours the driver could lawfully work. The Regulator investigates the operator and its managers for a Category 1 or Category 2 offence, using information requirements under sections 569 and 570, and an audit of the safety management system is admissible (section 632B). A Category 1 charge is indictable. Once a magistrate is satisfied the company may not be adequately punished on a summary conviction, the committal procedure in section 707(3) applies, even after a plea of guilty (Pentland). On conviction the court can add a commercial benefits order, a supervisory intervention order or a prohibition order (sections 597, 600 and 607).
How do South Australian courts sentence heavy vehicle offences?
Sentencing for heavy vehicle offences puts community safety first. In NHVR v Mounce the Supreme Court said the primary purpose of sentencing for the fatigue offending in that case was to protect the safety of the community ([20]). It treated as a useful guide the single judge decisions that take 20 to 25 per cent of the maximum penalty as a starting point ([16], [17], [20]). Mounce concerned ten offences, including six critical breaches of the former BFM hours, which brought 24 demerit points and five months’ loss of licence ([3]). The Court found the magistrate’s total fine manifestly inadequate ([26]), but because of the driver’s means under section 120 of the Sentencing Act 2017 (SA) it declined to resentence and dismissed the appeal ([29] to [33]).
In NHVR v Obst (No 2) the Court treated the drivers’ belief that they were complying as mitigating, while repeating that ignorance of the law is no excuse for a regulatory offence with important safety implications ([16]). It found no good reason not to record convictions ([18]). Starting from 20 to 25 per cent of the maximum, which was common ground, it fined each driver $1,200 after a discount for early pleas ([19], [20]). In the first Obst decision the Court had said that on a trifling argument the primary consideration is the conduct, with limited weight given to the explanation ([39]).
DPTI v Wing was decided under the predecessor scheme in the Road Traffic Act. The Court said there that the purpose of the legislation is that road safety overrides commercial imperatives ([18]), and it imposed $7,500 for ten counts of contravening a direction to produce records ([22]).
What else can a court order?
A fine is not the only sanction. The court can also make orders aimed at the business and its people.
| Order | When it is available | Section |
|---|---|---|
| Commercial benefits penalty order | On conviction, an amount up to three times the gross commercial benefit from the offence | 597 |
| Cancelling or suspending registration | On conviction of a registered operator for a severe risk mass, dimension or loading breach, or for an offence not about mass, dimension or loading | 598 |
| Supervisory intervention order | Where the court considers the offender is, or is likely to become, a systematic or persistent offender; up to 1 year, at the offender's expense | 599 and 600 |
| Prohibition order | Same threshold; bars a stated role or responsibility in road transport for up to 1 year, but cannot stop the person driving or registering a vehicle | 606 and 607 |
| Compensation order | Payment to a road manager for damage to road infrastructure caused by the offence | 611 |
Not every contravention goes to court. An authorised officer may give a formal warning, an enforceable undertaking may be accepted, or an infringement notice may issue as an alternative to prosecution (section 591). From 1 August 2026 a formal warning no longer depends on the person having exercised reasonable diligence. It still cannot be given for a substantial or severe mass, dimension or loading breach, a substantial, severe or critical work or rest breach, or a breach of the primary duty (section 590). An undertaking can be accepted for any contravention except a Category 1 offence (section 590A).
What powers do police and NHVR officers have?
Authorised officers have wide powers at the roadside and in an investigation. They can direct a driver to stop a heavy vehicle (section 513) and enter and inspect it for monitoring purposes (section 520). They can enter and search it on a reasonable belief that it was used to commit an offence against the Law, that it may hold evidence of one, or that it was involved in an incident causing death or injury (section 521). They can require production of documents the driver must carry (section 568), require a responsible person to produce documents (section 569), and require information about a heavy vehicle (section 570).
The privilege against self-incrimination is no excuse for refusing those requirements (section 587). Section 588 gives limited protection in return. Information an individual gives orally in answer to specified requirements, and anything derived from it, is not admissible against the individual in a criminal proceeding. Documents produced remain admissible, and the protection does not apply to a proceeding about false or misleading information. In R v Carter the District Court found that an officer who entered a truck held a reasonable belief that offences against the Law had been committed, so the entry was lawful ([38], [39]).
What changed on 1 August 2026?
The amendments that commenced on 1 August 2026 changed offences, penalties and accreditation. The date of the alleged offence decides which version applies. Section 761 keeps the former Law for an accreditation in force immediately before commencement, until it expires or is cancelled.
| Provision | Before 1 August 2026 | From 1 August 2026 |
|---|---|---|
| Fatigue offence, section 228 | Fatigue-regulated heavy vehicles only; impairment by fatigue | Every heavy vehicle; impairment by fatigue or being unfit to drive; maximum $28,230 |
| Prohibited requests, section 26E | Fatigue-regulated heavy vehicles and fatigue | Every heavy vehicle and unfitness to drive; maximum $28,230 |
| Counting time, section 247(a) | From the end of a relevant major rest break | From the end of the longest major rest break required in the period under the driver's work and rest hours option |
| Fatigue management hours, sections 253 to 258 | BFM and AFM accreditation | Alternative compliance hours for new accreditations; former sections 255 to 258 removed |
| Work diary, section 293(1) | Base maximum $6,000 | Base maximum $10,000 ($14,120 indexed) |
| False or misleading entries, section 325(1) | Base maximum $10,000 | Base maximum $20,000 ($28,230 indexed) |
| Dimension, section 102(1) | Base maximums $3,000, $5,000 and $10,000 | Base maximums $4,000, $6,000 and $10,000 |
| Minor standard hours breach, section 250(1) | Base maximum $4,000 | Base maximum $3,000 |
| Formal warnings, section 590 | Required reasonable diligence and unawareness | Diligence test removed; no warning for a primary duty breach |
| Accreditation grounds, section 473(1) | Public safety grounds for particular types of accreditation | Necessary to prevent or minimise a public risk |
| Executive due diligence, sections 26D and 5 | One due diligence duty for all safety duties | Primary duty failures carry Category 1 to 3 penalties; the Category 1 level is indictable |
| Safety management system audits, section 632B | No such provision | Admissible in primary duty proceedings |
| Fatigue-regulated threshold, section 7 | 12 tonnes, stated in the section | 12 tonnes, prescribed by regulation 73 of the General National Regulation |
What happens after a heavy vehicle charge is laid?
Most heavy vehicle charges are dealt with summarily in the Magistrates Court. A charge that is not indictable must be started within 2 years after the offence, or within 1 year after the offence comes to the complainant’s knowledge but within 3 years after the offence (section 707A).
Indictable offences follow a different path. Section 707 allows a Category 1 charge to be heard summarily. The court must not do so if the defendant asks at the start of the hearing for prosecution on indictment, if the court is satisfied the defendant may not be adequately punished on a summary conviction, or on a defence application for exceptional circumstances. It then conducts the matter as a committal proceeding and disregards any plea (section 707(3)). In Pentland Concrete v NHVR the Supreme Court held that the adequate punishment bar applies at any stage of the hearing, before and after conviction ([55]), and that “any plea” includes a plea of guilty ([61]). The magistrate had erred in treating section 707 as spent after the company’s guilty plea ([62]), and the Court held that the appeal must be allowed, with the orders to be settled ([63]).
An accreditation decision has its own path. The Regulator can amend, suspend or cancel an accreditation on the grounds in section 473(1), which for accreditations approved from 1 August 2026 include that the Regulator considers it necessary to prevent or minimise a public risk. A person dissatisfied with a reviewable decision may apply to the Regulator for internal review within 28 days (section 641), then appeal the review decision within 28 days (section 647), in South Australia to the District Court. Applying for review does not stop the decision taking effect. A stay under section 642 is not available where the Regulator made the decision on a public safety ground. In Sunrise Adelaide Transport v NHVR the District Court found that a cancellation of mass management, maintenance management and BFM accreditations was made on that ground, and dismissed the stay application ([14], [64], [67]).
Can a heavy vehicle offence cost a licence?
Yes, through demerit points, a court ordered freeway disqualification or a police notice for a repeat freeway offence. Demerit points are incurred on conviction or expiation of a prescribed offence (section 98B of the Motor Vehicles Act). Twelve or more within 3 years makes a driver liable to disqualification for 3 months (12 to 15 points), 4 months (16 to 19) or 5 months (20 or more) (section 98BC).
A licence holder given a demerit point disqualification notice can elect, within 21 days (or 28 days with the Registrar’s permission), to accept a 12 month good behaviour condition instead (section 98BE). Incurring 2 or more demerit points while the condition applies brings a disqualification for twice the original period. See our demerit point reduction page.
Section 81BB of the Motor Vehicles Act gives an appeal to the Magistrates Court against a disqualification under section 81B for an offence committed while the driver held a provisional or probationary licence. A freeway disqualification ordered by a court cannot be reduced (section 45C(3)), and a police notice under section 45D is challenged through section 45E. Our drivers licence appeal page explains the appeal process, and our truck driver licence appeals guide sets out which avenue fits which notice.
Who we act for
We act for drivers and for the businesses around them:
- Drivers and owner drivers facing fatigue, work diary, mass, loading or freeway charges.
- Operators and prime contractors responding to NHVR investigations and primary duty allegations.
- Schedulers whose rosters and run times are said to have caused a breach.
- Loaders, packers and loading managers facing mass, dimension and load restraint allegations.
- Consignors and consignees who did not know they were parties in the chain.
- Executives and directors facing due diligence allegations under section 26D.
Where a business and an individual are both in the frame, their interests do not always align. We say so at the start, and we act for one of them.
How do we defend a heavy vehicle charge in Adelaide?
Heavy vehicle prosecutions are documentary. The case is built from a work diary, telematics, a weighbridge or axle weight record, measurements and a compliance file, and each of those records can be wrong or misread.
| Stage | What happens | What we do |
|---|---|---|
| Roadside stop or audit | An officer directs the driver to stop (section 513), inspects the vehicle (section 520) and requires the documents the driver must carry (section 568). | Find out what was required, what was said and what was taken, and check each step against the power used. |
| Notice or warning | The matter may end with a formal warning (section 590) or an infringement notice (section 591), or go to court. | Advise before the due date whether to pay the notice or elect to be prosecuted. |
| Investigation | The Regulator issues information and document requirements (sections 569 and 570), and self-incrimination is no excuse (section 587). | Advise before any interview or written response, and confirm what the protection in section 588 does and does not cover. |
| Charge and brief | The charge is filed and the brief is served: diary pages, telematics, weighbridge records and photographs. | Test the counting under section 247, the breach category, the measurement and whether every element is proved. |
| Plea, trial and sentence | The charge is contested, negotiated or pleaded, and the court sentences. | Run the category and counting points, then build the sentencing case on the safety systems, the steps taken and the effect on the driver's licence. |
We act on heavy vehicle matters across Adelaide and regional South Australia. We cannot promise an outcome, and no lawyer can. We can make sure the category and the counting are right before anyone pleads to them.
Every hour matters. Book a same-day free 30-minute consultation, or call (08) 7094 2021 now.
Heavy vehicle case law in South Australia
The authorities below decide the points this page relies on. Each is cited to AustLII with the paragraphs where the point is made. Several were decided under the Law before the 1 August 2026 amendments, or under the predecessor Road Traffic Act scheme, and each note says so.
| Case | Court | Principle | Pinpoint |
|---|---|---|---|
| Police v Barnes [2017] SASC 196 | Supreme Court | Maximum work time is a total, not a continuous stretch; counting under the former section 247 | [32], [34] to [38] |
| Ballantyne v National Heavy Vehicle Regulator [2019] SASC 135 | Supreme Court | 13.75 hours in 24 a critical breach; a mistake about the law is no defence | [1], [2], [5], [6], [8], [9] |
| National Heavy Vehicle Regulator v Obst; National Heavy Vehicle Regulator v Turnbull [2021] SASC 37 | Supreme Court | Breach levels for a 24-hour period; trifling turns on the conduct | [1], [16], [20], [22], [39], [41], [42] |
| National Heavy Vehicle Regulator v Obst; National Heavy Vehicle Regulator v Turnbull (No 2) [2021] SASC 50 | Supreme Court | Belief of compliance mitigates; conviction recorded; fines after a 20 to 25 per cent starting point | [11], [16], [18] to [20] |
| National Heavy Vehicle Regulator v Mounce [2020] SASC 91 | Supreme Court | Community safety the primary purpose; starting point decisions a useful guide | [3], [16], [17], [20], [26], [29] to [33] |
| Department of Planning, Transport and Infrastructure v Wing [2014] SASC 115 | Supreme Court | Predecessor scheme: road safety overrides commercial imperatives | [1], [18], [22] |
| Busbridge v Police [2015] SASC 201 | Supreme Court | Dimension exemption read by its terms; divided loads not covered | [9], [31], [37], [38], [72] to [74], [80], [100] |
| R v Carter [2020] SADC 27 | District Court | Entry and search of a heavy vehicle on reasonable belief | [34], [38], [39], [49] |
| Pentland Concrete Pty Ltd v National Heavy Vehicle Regulator [2026] SASC 79 | Supreme Court | Section 707 committal procedure applies after a guilty plea | [9], [11], [12], [55], [61] to [63] |
| Sunrise Adelaide Transport Pty Ltd v National Heavy Vehicle Regulator [2026] SADC 52 | District Court | No stay of an accreditation cancellation made on a public safety ground | [13], [14], [17], [19], [51], [64], [67] |
Case notes
Police v Barnes [2017] SASC 196
Doyle J read the maximum work time in section 250(1) as the total of the hours worked in the period, not a continuous number of hours ([32]). His Honour treated work and rest as covering all of a driver’s time, so personal time of more than five hours was a major rest break ([34] to [36]). Counting did not stop when the driver took a later major rest break, and two 24-hour periods could run at once ([37], [38]). His Honour concluded that the appeal should be allowed and the matter remitted to the magistrate to deal with a remaining defence. The counting reasoning construed section 247 as it stood before 1 August 2026; the definition of maximum work time is unchanged.
Ballantyne v National Heavy Vehicle Regulator [2019] SASC 135
The driver was convicted under section 250(1)(a) after recording 13.75 hours in a 24-hour period ([1], [5]). Under the regulation then in force, more than 13.5 hours was a critical risk breach ([2]). Peek J found the prosecution was justified in starting the period at the end of a particular major rest break ([5]), held that the driver’s mistake about the law was no defence ([6]), described the trap of overlapping 24-hour periods ([8]) and dismissed the appeal ([9]). Decided under the former section 247.
National Heavy Vehicle Regulator v Obst; National Heavy Vehicle Regulator v Turnbull [2021] SASC 37
A magistrate had dismissed standard hours charges against two drivers without conviction or penalty under section 23(1)(a) of the Sentencing Act 2017 ([1]). Blue J set out the breach levels for a 24-hour period then prescribed ([20]) and said a period that has started does not stop because the driver takes another major rest break ([22]). On a trifling argument the primary consideration is the conduct, with limited weight to the explanation ([39]). The offences were not trifling ([41]), and the appeals were allowed ([42]). The judgment records the 12 tonne threshold then in section 7 ([16]). Decided under the former section 247.
National Heavy Vehicle Regulator v Obst; National Heavy Vehicle Regulator v Turnbull (No 2) [2021] SASC 50
On resentencing, Blue J referred to DPTI v Brown [2014] SASC 113, a critical breach under the predecessor regulations ([11]). The drivers’ belief that they were complying with the 12 in 24 hour rule was mitigating, but ignorance of the law is no excuse for a regulatory offence with important safety implications ([16]). There was no good reason not to record convictions ([18]). From a starting point of 20 to 25 per cent of the maximum, which was common ground, and with a 40 per cent discount for early pleas, each driver was fined $1,200 ([19], [20]).
National Heavy Vehicle Regulator v Mounce [2020] SASC 91
The magistrate imposed one global fine of $1,050 for ten offences, six of them critical breaches of the former BFM hours that carried 4 demerit points each, 24 in all and five months’ loss of licence ([3]). The Regulator relied on single judge decisions applying a starting point of 20 to 25 per cent of the maximum ([16], [17]). Bampton J said those authorities are a useful guide and that the primary purpose of sentencing for this offending is to protect the safety of the community ([20]). The penalty was manifestly inadequate ([26]), but because of the driver’s means under section 120 of the Sentencing Act 2017 the Court declined to resentence, and the appeal was dismissed ([29] to [33]).
Department of Planning, Transport and Infrastructure v Wing [2014] SASC 115
A Crown appeal against fines for ten counts of contravening a direction to produce records under section 40W(4) of the Road Traffic Act, the predecessor scheme ([1]). Stanley J said the purpose of the legislation is that road safety overrides commercial imperatives, and that deterrence matters most where drivers are tempted to withhold diaries or drive excessive hours ([18]). The appeal was allowed and the driver fined $7,500 for all ten counts ([22]).
Busbridge v Police [2015] SASC 201
A driver carrying an air seeder and its four detached tyres was charged with a severe risk dimension breach ([1], [11]) and produced a code of practice and gazette notice for agricultural vehicles as his exemption ([9]). Parker J accepted that the code continued as an exemption by force of the transitional provisions ([31]). A driver who exceeds a dimension requirement breaches the Law unless an exemption applies ([38]). The code did not cover tyres that could be separated from the machine without great difficulty, expense or risk of damage, so they had to be carried within 2.5 metres ([72] to [74], [80]). The appeal was dismissed ([100]). The offence was then worded as a prohibition on driving a non-compliant vehicle; section 102(1) is now a duty on a person who drives or permits driving, with a reasonable excuse defence.
R v Carter [2020] SADC 27
An officer of the police Heavy Vehicle Enforcement Section stopped a prime mover and, with the power to enter a vehicle for investigation purposes in mind, completed his examination of the work diary before entering the cabin ([34]). Judge Durrant found that when the officer entered, he held a reasonable belief that offences against the Law had been committed and intended only to search under the Law ([38]). The entry was lawful ([39]), and the application to exclude the evidence found in the cabin was refused ([49]).
Pentland Concrete Pty Ltd v National Heavy Vehicle Regulator [2026] SASC 79
One of the company’s concrete agitator trucks collided with a tree and the driver was killed, and the Regulator charged the company under section 26F ([12]). An indictable offence is one mentioned in section 26F ([9]), and South Australia has not modified sections 26F, 707 or 707A ([11]). Bochner J held that the adequate punishment bar in section 707(2)(b)(i) applies at any stage of the hearing, before and after conviction ([55]), and that “any plea” in section 707(3)(c) includes a plea of guilty ([61]). The magistrate erred in treating section 707 as spent after the plea, and in deciding that the company could be remanded to another court for sentence without the section 707(3) procedure ([62]). The appeal must be allowed, with the orders to be settled after hearing the parties ([63]). Decided before the 1 August 2026 change that extended the definition of indictable offence to some executive due diligence offences.
Sunrise Adelaide Transport Pty Ltd v National Heavy Vehicle Regulator [2026] SADC 52
The Regulator cancelled the company’s mass management, maintenance management and BFM accreditations under section 473(1), with effect from 1 May 2026 ([13], [14]). The company sought a stay from the District Court as a relevant appeal body ([19]). A public safety ground requires the Regulator to be satisfied that the decision is necessary to prevent a significant risk to public safety ([17]). Judge Mackenzie held that public safety need not be the only basis of the decision, if it was a fundamental or determinative element of the reasoning ([51]), found the cancellation was made on that ground ([64]), and dismissed the stay application ([67]). Decided under section 473 as it stood before 1 August 2026; sections 640 and 642 were not changed on that date.
Frequently asked questions
What is the Heavy Vehicle National Law in South Australia?
It is the national law for vehicles over 4.5 tonnes, applied in South Australia by section 4 of the Heavy Vehicle National Law (South Australia) Act 2013. It sets the chain of responsibility duties, the fatigue and work diary rules and the mass, dimension and loading requirements, and it is enforced by the National Heavy Vehicle Regulator and South Australia Police.
What changed for heavy vehicle drivers on 1 August 2026?
The fatigue offence in section 228 now applies to every heavy vehicle and covers being unfit to drive as well as fatigue, with a maximum of $28,230 and 3 demerit points. Alternative compliance hours replace BFM and AFM for new accreditations, the work diary and false entry maximums rose, and section 247 now counts from the end of the longest major rest break required. The date of the alleged offence decides which version applies.
Is driving while fatigued an offence if the truck is under 12 tonnes?
Yes, from 1 August 2026, if the vehicle is a heavy vehicle. Section 228(1) applies to any heavy vehicle over 4.5 tonnes, not only fatigue-regulated vehicles, and covers driving while impaired by fatigue or unfit to drive. For an offence before that date, the former section applied only to fatigue-regulated heavy vehicles.
What are logbook offences in South Australia?
Logbook offences are work diary offences under the Law. A driver of a fatigue-regulated heavy vehicle doing 100+km work under standard hours, or working under alternative compliance or exemption hours, must keep a work diary covering the previous 28 days and carry it while driving (sections 291 and 293). The maximum for that offence is $14,120, and a false or misleading entry in a work record carries $28,230.
What is the penalty for an overloaded truck in SA?
Overloading is a breach of the mass requirements under section 96, graded as a minor, substantial or severe risk breach. From 1 August 2026 to 30 June 2027 the maximums are $5,630, $8,480 and $14,120, and a severe breach adds $710 for every further 1 per cent over a 120 per cent overload, capped at an extra $28,230. A reasonable excuse is a defence.
Does chain of responsibility apply to someone who does not drive?
Yes, if the person fills one of the roles the Law names. Section 5 lists employers, prime contractors, operators, schedulers, consignors, consignees, packers, loading managers, loaders and unloaders. Each owes the primary duty in section 26C, so far as is reasonably practicable, for the safety of its transport activities, and executives owe their own due diligence duty under section 26D.
Can a company be fined if a driver breaches the fatigue rules?
Yes, where the company’s own conduct breached its primary duty as a party in the chain. The maximums for a corporation are $4,230,550 for a Category 1 offence, $2,120,880 for Category 2 and $705,820 for Category 3. Asking or requiring a driver to break the fatigue rules is a separate offence under section 26E, and executives can be prosecuted under section 26D.
Do I have to answer NHVR questions?
The privilege against self-incrimination is no excuse for failing to comply with an authorised officer’s requirement to produce documents or give information (section 587). Section 588 gives limited protection: information given orally in answer to some requirements cannot be used against the individual in a criminal proceeding, but documents produced can be. Advice before responding matters, because the response often shapes the charge.
What happens if a truck speeds on the South Eastern Freeway?
Driving a truck or bus on the prescribed part of the freeway 10 km/h or more over a relevant speed limit, or not in a low enough gear where a low gear sign applies, is an offence under section 45C of the Road Traffic Act. It carries 6 demerit points, and on conviction the court must disqualify for at least 6 months for a first offence, 12 months for a second and 3 years for a subsequent offence. Police can also give a disqualification or suspension notice for a second or subsequent offence (section 45D).
Can a heavy vehicle offence cost a driver's licence?
Yes. A severe work and rest hours breach carries 3 demerit points, a critical breach 4, the fatigue offence 3 and each freeway offence 6, and 12 or more points within 3 years brings a disqualification of 3 to 5 months. A freeway conviction also brings a mandatory minimum disqualification of its own.
How long does the NHVR have to start a prosecution?
For an offence that is not indictable, the proceeding must start within 2 years after the offence, or within 1 year after the offence comes to the complainant’s knowledge but within 3 years after the offence (section 707A). The limit in section 707A applies to offences that are not indictable.
Do I need a lawyer for a heavy vehicle offence?
Not every matter needs one, but matters with a licence or a business attached usually do. Penalties reach six figures for individuals and seven for companies, and some consequences, such as a freeway disqualification, cannot be reduced once a conviction is recorded. A free 30-minute consultation will tell you whether the case against you is worth testing.
South Australian courts we attend for heavy vehicle matters
We appear in the Adelaide Magistrates Court and in the regional courts on the freight routes, and in the District Court and Supreme Court for matters that go there.
Courts we attend
Book a same-day free 30-minute consultation or call (08) 7094 2021.
Related heavy vehicle and traffic guides
Related guides
- Fatigue and work diary offences
- Mass, dimension and loading offences
- Chain of responsibility
- Heavy vehicle speeding and the South Eastern Freeway
- Truck driver licence appeals
- Traffic Lawyers Adelaide
- Drivers licence offences
- Drivers licence appeal
- Demerit point reduction
- Reckless and dangerous driving
- Courts we attend