Expert Insights: Protecting placards from snow, ice, and grime
2025-10-02T05:00:00Z
Winter weather brings more than cold and ice, it creates serious challenges for hazmat transport, especially when it comes to placard visibility and durability. Placards aren’t just labels, they’re vital safety tools required by the Hazardous Materials Regulations (HMR) to communicate the nature of the cargo. They always need to be legible, visible, and intact.
Why winter threatens placard integrity
Winter conditions can quickly obscure or damage placards:
- Snow and ice can cover placards completely.
- Road salt and grime degrade materials.
- Moisture and freezing cause peeling and cracking.
These issues increase the risk of non-compliance and endanger drivers and emergency responders.
Winter maintenance tips
Stay ahead of winter hazards with these best practices:
- Inspect often: Check placards before, during, and after trips, especially in storms or on treated roads. Look for dirt, damage, or ice buildup.
- Clean safely: Use soft cloths and non-abrasive cleaners. Avoid high-pressure washers, rinse with warm water to remove salt and grime.
- Add protection: Apply clear, weather-resistant sealants to shield placards from moisture and debris, reducing wear and tear.
- Use covers when parked: Removable clear covers help prevent snow and ice buildup. Swap them out as needed to maintain visibility.
- Place strategically: Mount placards above splash zones and away from obstructions. Keep them within reach for easy cleaning.
- Prepare for extremes: Carry de-icing spray and spare placards. Train drivers on safe cleaning and replacement procedures in cold weather.
Know the rules
The HMR requires placards to be:
- Durable and weather-resistant
- Clearly visible from their facing direction
- Free from obstruction or damage
Not being in compliance can lead to fines or transport delays. Ensure all personnel are trained on winter-specific placard care.


















































