Most people with diabetes drive for decades without it ever becoming a licensing issue. But if you have just started insulin, changed medications, or had an episode of low blood sugar while driving, you might be wondering what you are actually required to do.
This article covers what Queensland law requires, how insulin and hypoglycaemia change the picture, and when an occupational therapy (OT) driving assessment is part of the process rather than a routine check.
Do I have to tell TMR I have diabetes?
Queensland law requires you to notify the Department of Transport and Main Roads (TMR) if you have a permanent or long-term condition likely to affect your ability to drive safely. For most people with diabetes managed well on tablets or diet, this does not apply. For people on insulin, or anyone who has had a severe low blood sugar episode, it usually does.
You can notify TMR through its online medical condition reporting service, or your GP can lodge a Medical Certificate for Drivers (Form F3712) on your behalf. Your GP is the right person to work this out with you. If you are not sure whether your diabetes needs to be reported, ask at your next appointment rather than guessing, and our general guide to reporting a medical condition in Queensland covers the process in more detail.
Insulin and driving: what actually matters
The national standard (Austroads, 2022) treats insulin-treated diabetes differently to diabetes managed with tablets, because insulin carries a real risk of hypoglycaemia (low blood sugar), and a hypoglycaemic episode behind the wheel is dangerous in a way that high blood sugar generally is not.
If you are on insulin, you cannot hold an unconditional licence. That sounds alarming, but in practice it usually just means a conditional licence with periodic medical review, most often every two years. To qualify, you generally need:
No recent severe hypoglycaemic event (one requiring someone else's help to treat)
Reliable warning symptoms before your blood sugar drops too low, or a documented plan if you do not get those warnings
Your treating doctor's confirmation that your diabetes is stable and well managed
If you are managed on glucose-lowering tablets rather than insulin, you can generally drive without restriction, with review roughly every five years, unless you have developed complications that affect vision, sensation or thinking.
What is hypoglycaemia unawareness, and why does it matter more than the diabetes itself?
Some people stop getting the early warning signs of low blood sugar, the shakiness, sweating or confusion that would normally tell them to pull over and treat it. This is called hypoglycaemia unawareness, and it is the single biggest driving risk in diabetes, more than the diagnosis itself.
If this applies to you, your doctor may ask you to check your blood glucose before driving and on long trips, and to keep fast-acting glucose in the car. If you have had a severe episode while driving, or lost awareness of the warning signs, TMR may ask for a period off the road while this is brought under control. That is a medical decision your doctor and endocrinologist make, not something an OT assessment changes.
Where does an OT driving assessment come in?
An OT driving assessment is not usually the first step for diabetes on its own. It becomes relevant when diabetes has caused a complication that might affect driving skills directly, most commonly:
Diabetic retinopathy or other vision changes affecting what you can see on the road
Peripheral neuropathy reducing sensation in your feet, which can affect pedal control
A stroke or cardiovascular event related to long-standing diabetes
In these cases, your GP or specialist may refer you for an assessment that looks at how the complication plays out behind the wheel, not at your diabetes management itself. We drive with you in a driving instructor's car, on roads you actually use, and look at things like pedal reaction times/sensations or how you scan the road with altered vision. Two people with the same eye test result can drive very differently, which is why the on-road component matters.
If your diabetes is well controlled and your only question is about the reporting form, you likely do not need an OT assessment at all. Start with your GP, and see our guide on how to know when it is time to get your driving checked if you want a broader picture of when an assessment is worthwhile.
What happens if TMR asks for more information?
TMR may write to you or your GP asking for more detail before a licence decision is made. This is routine, not a sign your licence is at risk. It usually means your doctor completes a form describing your diabetes control, your hypoglycaemia history and any complications. Most people continue driving while this is sorted out, unless there is an immediate safety concern like a recent severe hypoglycaemic episode while driving. If an OT driving assessment is recommended as part of this process, our guide on how to prepare for the assessment and what happens afterwards explain what to expect.
Frequently asked questions
I have type 2 diabetes managed with tablets. Do I need to report this?
Usually not, unless you have developed complications like reduced vision or nerve damage that could affect driving, or your treatment changes to include insulin. Check with your GP if you are unsure.
Will going on insulin mean I lose my licence?
No. Most people on insulin keep driving under a conditional licence with periodic medical review. Licence loss is rare and usually relates to a specific safety event, like a severe hypoglycaemic episode while driving, rather than to starting insulin itself.
Can I self-manage without telling anyone?
The reporting duty is a legal requirement in Queensland if your condition is likely to affect safe driving, and it sits with you, not just your doctor. Undisclosed conditions can also affect insurance in the event of a crash.
How often will I need medical reviews once I am on a conditional licence?
Typically every two years for insulin-treated diabetes, and around every five years for diabetes managed without insulin, though your doctor sets the exact schedule based on your history.
Does an OT assessment replace my diabetes management with my doctor?
No. An OT assessment looks at driving skills affected by a complication of diabetes, such as vision or sensation changes. Your diabetes control itself stays with your GP and endocrinologist.
Ready to book an OT driving assessment on the Gold Coast? Steer Driving is a mobile assessment service covering the Gold Coast and surrounding areas. Whether you already have a referral or you're just getting started, get in touch and we'll guide you through the next steps.
This article was written by Elise, an AHPRA-registered Occupational Therapist and driver assessor. Elise is the founder of Steer Driving, a mobile OT driving assessment practice.
References
Austroads. (2022). Assessing fitness to drive for commercial and private vehicle drivers (6th ed.). Austroads. https://austroads.gov.au/publications/assessing-fitness-to-drive/ap-g56
Department of Transport and Main Roads. (2026). Reporting a medical condition. Queensland Government. https://www.qld.gov.au/transport/licensing/healthy-to-drive
