Hi-Vis Workwear Safety Standards Explained: EN ISO 20471 vs ANSI/ISEA 107
If you’re sourcing hi-vis workwear for your team, understanding safety standards isn’t optional — it’s a legal requirement. The wrong certification can mean fines, failed inspections, or worse, a preventable accident.
This guide breaks down the two major hi-vis standards used worldwide so you can order with confidence.
What Is Hi-Vis Workwear?
High-visibility workwear uses fluorescent materials and retroreflective strips to make workers visible in low-light conditions, poor weather, or high-traffic environments. It’s mandatory in industries like construction, road work, logistics, mining, and emergency services.
The two dominant standards globally are:
- EN ISO 20471 — used in Europe, UK, Australia, and most international markets
- ANSI/ISEA 107 — used in the United States and Canada
EN ISO 20471: The European Standard
EN ISO 20471 classifies hi-vis clothing into three classes based on the minimum area of visible material:
Class 1 — Minimum Visibility
- Background material: 0.14 m²
- Retroreflective material: 0.10 m²
- Typical garments: vests, belts, arm bands
- Use: low-risk environments with slow-moving traffic
Class 2 — Medium Visibility
- Background material: 0.50 m²
- Retroreflective material: 0.13 m²
- Typical garments: vests, short-sleeve shirts
- Use: moderate-risk environments, warehouse areas, parking lots
Class 3 — Maximum Visibility
- Background material: 0.80 m²
- Retroreflective material: 0.20 m²
- Typical garments: jackets, coveralls, full trousers with torso coverage
- Use: high-risk environments — highways, railways, airports, construction sites
Class 3 garments must have reflective strips on both the torso and sleeves or legs, ensuring 360-degree visibility.
ANSI/ISEA 107: The American Standard
ANSI/ISEA 107-2020 uses a similar tiered system but with different terminology:
Type O (Off-Road)
- For workers not on roadways
- Warehouses, parking lots, outdoor events
- Available in Class 1 only
Type R (Roadway)
- For workers exposed to traffic and road equipment
- Construction zones, utility work, road maintenance
- Available in Class 2 and Class 3
Type P (Public Safety)
- For emergency responders — police, fire, EMS
- Allows alternative color combinations
- Available in Class 2 and Class 3
Key Differences Between EN ISO 20471 and ANSI/ISEA 107
| Feature | EN ISO 20471 | ANSI/ISEA 107 |
|---|---|---|
| Region | Europe, UK, International | USA, Canada |
| Classes | 1, 2, 3 | 1, 2, 3 (within Types O, R, P) |
| Fluorescent colors | Yellow, orange, red | Yellow-green, orange-red, red |
| Wash durability testing | Required (25+ washes) | Required (25+ washes) |
| Flame resistance | Separate standard (EN ISO 14116) | Can be combined (ANSI 107 + NFPA 2112) |
Which Standard Do You Need?
It depends entirely on where your workers operate:
- Selling to European buyers? You need EN ISO 20471 certification
- Selling to US/Canadian buyers? You need ANSI/ISEA 107 compliance
- Selling globally? Dual-certified garments cover both markets and simplify your supply chain
Many B2B buyers now request dual certification as standard, especially multinational companies operating across regions.
What to Ask Your Manufacturer
Before placing an order for hi-vis workwear, ask these questions:
- Which certifications do your hi-vis garments carry? (Ask for test reports)
- What class level is available for each garment style?
- How many wash cycles do the reflective strips maintain performance?
- Can you produce dual-certified (EN ISO 20471 + ANSI) garments?
- Do you offer flame-resistant hi-vis options?
Source Certified Hi-Vis Workwear from UNIWORKWEAR
At UNIWORKWEAR, we manufacture EN ISO 20471 and ANSI/ISEA 107 certified hi-vis workwear — jackets, vests, coveralls, trousers, and polo shirts. Every garment comes with full test documentation.
- Class 1, 2, and 3 options available
- Dual certification for global buyers
- Flame-resistant hi-vis combinations
- Custom branding — logos, reflective tape patterns, color matching
- MOQ from 300 pieces per style
Request certified hi-vis samples — we’ll ship them to you within 7 days.
Related guides:
View our certifications or hi-vis products.
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