Driving with fogged or frosted windows might seem harmless, but in Australia, it can now cost you a fine of up to $432 and demerit points. Authorities have tightened enforcement because poor visibility caused by foggy windscreens is a growing road safety concern, especially during early mornings and evenings when accidents are more likely.
Legal Risks of Driving with Foggy Windows
Under Australian road rules, a driver must always have a clear view of the road ahead, to the sides, and behind. This means that fog, frost, or dirt on windows is a direct violation of the law.
Key facts:
- Maximum fine: $432
- Demerit points: Yes, penalties apply
- Requirement: Full visibility in all directions
- Common causes: Moisture, condensation, frost, or poor cleaning
Police have emphasized that excuses such as “I didn’t notice” are not acceptable. If your visibility is restricted, you are legally at risk and could face fines and licence penalties.
Why Clear Windows Are Essential
Driving with fogged windows significantly increases the risk of:
- Missing pedestrians or cyclists
- Failing to see road signs or signals
- Misjudging other vehicles’ movements
- Collisions caused by delayed reaction time
Studies show that many near-miss accidents go unreported, but fogged windscreens remain a major hidden cause. Road safety groups are calling for stricter awareness and enforcement.
How to Prevent Foggy Windows
Fortunately, preventing window fog is simple with a few precautions:
- Use your demister and air conditioning set to fresh air (not recirculated).
- Clean your windows regularly inside and out to reduce moisture build-up.
- Apply anti-fog products or wax for longer-lasting clarity.
- Warm up your car before driving, especially on cold mornings.
A few minutes of preparation can make the difference between safe driving and costly penalties.
Quick Reference Table
| Aspect | Details |
|---|---|
| Maximum Fine | $432 |
| Demerit Points | Yes |
| Legal Requirement | Clear visibility at all times |
| Common Cause | Condensation or frost |
| Enforcement Focus | Mornings and evenings |
Safety and Responsibility
Driving with foggy windows is not just a legal issue—it’s a matter of life and safety. Poor visibility is directly linked to crashes, injuries, and fatalities. Taking a few extra minutes to clear your windows before driving protects you, your passengers, and everyone else on the road.
FAQs
1. What is the fine for driving with fogged windows in Australia?
Up to $432, plus possible demerit points.
2. Are partially fogged windows also illegal?
Yes, if they limit your visibility to other road users.
3. How do I quickly defog my car windows?
Turn on your demister, set the air conditioning to fresh air, and wipe the inside glass if needed.
4. Does this rule apply year-round?
Yes. No matter the season, drivers must have a clear line of sight.
5. Can police issue fines on the spot?
Yes, officers can issue on-the-spot infringement notices if they find your visibility compromised.
Conclusion
In 2025, Australia’s road safety laws are stricter than ever. Driving with fogged or dirty windows is not only dangerous but also carries heavy financial and legal consequences. By taking simple steps—using your demister, cleaning your glass, and preparing before trips—you can avoid fines, protect your licence, and make the roads safer for everyone.