Green triangle? White square? Here’s what all those CSA boot symbols actually mean.
If you’ve ever looked at the tag inside a pair of work boots in Canada, you’ve likely seen a few strange symbols—colored triangles, squares, letters, or electrical signs. These aren’t just random markings. They’re official CSA symbols that certify the safety features of your boots under the CSA Z195 standard.
Knowing how to read these labels can help you:
- Buy the right boots for your job
- Stay compliant with Canadian regulations
- Avoid safety violations or injury
Let’s decode these CSA symbols so you can shop and work with confidence.
What Are CSA Boot Symbols?
CSA boot symbols are visual indicators that tell you what kind of protection a pair of safety boots provides. These symbols are color-coded, standardized across Canada, and printed on the label (often on the tongue or inner shaft) of certified work boots.
They represent different types of protection:
- Toe impact resistance
- Sole puncture resistance
- Electrical hazard protection
- Conductivity or anti-static ratings
The 6 Most Common CSA Symbols (and What They Mean)
Symbol Meaning Use Case Examples Green Triangle Grade 1 toe cap + puncture-resistant sole Construction, warehouse, general industrial Yellow Triangle Grade 2 toe cap + puncture-resistant sole (lighter duty) Light manufacturing, indoor service work White Square + Ω Electrical Shock Resistance (ESR) Electricians, HVAC, utility technicians Red Rectangle + C Electrically Conductive (for static discharge environments) Explosives, sensitive electronics Blue Square Grade 1 toe cap only (no puncture plate) Dry environments, indoor jobs Yellow Square + SD (less common) Static Dissipative (anti-static) Manufacturing with sensitive components
Where Can You Find These Symbols?
Look for the CSA label:
- Inside the boot’s tongue label
- On the side of the shaft
- Printed or stitched near the heel collar
If a boot does not clearly show CSA certification symbols, it is not approved—even if it has a toe cap or looks rugged.
How to Choose the Right Symbols for Your Job
Construction or Heavy Industry
→ Green Triangle + White Square
→ Full impact & puncture resistance + electric shock protection
Electrical Work
→ White Square (Ω) is mandatory
→ Avoid metal components and ensure ESR rating
Manufacturing & Light Duty
→ Yellow Triangle or Blue Square
→ Lighter boots, less toe/sole reinforcement needed
Hazardous Environments (ESD or Explosive)
→ Red Rectangle or Yellow SD Square
→ Specialized boots required (rare for general public)
Common Mistakes to Avoid
-
Assuming all safety boots are CSA certified
→ Many “steel toe” boots sold online are not CSA approved. -
Buying ASTM-certified boots for Canada
→ ASTM is U.S. standard. Most Canadian employers only accept CSA Z195. -
Using outdated boots
→ Over time, labels wear off and boots lose compliance. Replace if labels are unreadable or soles are damaged.
Final Tip: Always Check Before You Buy
CSA symbols are your proof that the boots you're wearing meet Canadian safety standards. Don’t rely on brand claims or assumptions—always verify the label.
At MooseLog, we make it easy. Every boot we sell is clearly marked with CSA symbols and listed by certification type.
Ready to Buy CSA Approved Work Boots?
Whether you need boots for heavy construction or electrical work, MooseLog offers a complete line of CSA approved work boots that meet the highest standards of safety and comfort.
