High Visibility Clothing Standards: EN ISO 20471 vs ANSI/ISEA 107 vs GB 20653

If you buy high-visibility clothing for export, you have probably seen a specification that says "Class 2 hi-vis" without naming a standard. That is the single most common source of miscommunication in this trade.

Three standards dominate the market — EN ISO 20471 in Europe and the UK, ANSI/ISEA 107 in the United States, and GB 20653 in China. They all grade garments with the same words: Class 1, Class 2, Class 3. Those words are not interchangeable. A garment certified to one standard is not automatically compliant with either of the others, and a "Class 2" from one system does not mean the same visibility as a "Class 2" from another.

This page sets out how the three systems are structured, which one applies to which market, and how to read a specification without getting caught out.

The three standards at a glance

Standard	Applies to	Current edition	Structure
EN ISO 20471	EU, UK, and markets that adopt EN norms	2013 + A1:2016	Three classes (1, 2, 3)
ANSI/ISEA 107	United States	2020	Two dimensions: Type × Performance Class
GB 20653	China	2020	Three classes (1, 2, 3)

Note the second row carefully. ANSI/ISEA 107 is the odd one out, and that is where most quoting errors happen.

How the grading actually differs

All three systems measure the same underlying thing — how much high visibility material a wearer presents to an approaching driver — but they structure that requirement differently. That structural difference, not the numbers, is what makes the classes non-equivalent.

EN ISO 20471 — one axis

A single ladder from Class 1 to Class 3. The class rises with the area of fluorescent background material and retroreflective material on the garment. Class 3 is the highest and in practice means sleeves — a sleeveless vest cannot reach Class 3 however bright the fabric is, because there is not enough visible material area.

Permitted fluorescent colours are yellow, orange-red and red. The standard also sets retroreflective performance requirements at defined viewing angles, and requires performance to be maintained through a specified number of wash cycles.

ANSI/ISEA 107-2020 — two axes

This is the part that trips people up. A US specification has two components, and both matter:

Type describes the work environment:
- Type O — off-road. Warehouses, yards, plant sites where vehicles are not the primary hazard.
- Type R — roadway. Workers exposed to traffic.
- Type P — public safety. Fire, police, EMS and other emergency responders.
Performance Class describes how much visible material the garment carries — the same area-based logic as EN ISO 20471.

So a US spec reads like "Type R, Class 2". If a buyer says only "Class 2", you do not yet know what they need — ask which Type. A Type O garment and a Type R garment can both be Class 2 and still not be substitutes for each other.

GB 20653-2020 — one axis, Chinese market

Three classes, structured along similar lines to EN ISO 20471 but with its own test methods and its own requirements. It is the correct reference for goods sold into the Chinese domestic market, and it is not a translation of the European standard.

Which standard applies where

Destination market	Reference standard	What the label should show
European Union	EN ISO 20471	Class 1 / 2 / 3, plus CE marking under PPE Regulation (EU) 2016/425
United Kingdom	EN ISO 20471 (as retained/designated standard)	Class, plus UKCA marking
United States	ANSI/ISEA 107-2020	Type O / R / P + Performance Class
China (domestic)	GB 20653-2020	Class 1 / 2 / 3
Middle East, Southeast Asia, much of Latin America	Usually EN ISO 20471, sometimes ANSI/ISEA 107	Follow the buyer's contract — confirm before quoting

Where a buyer's market has no national scheme of its own, they will normally specify one of the three above. Do not assume — confirm in writing which standard and which grade the purchase order requires, and state the high visibility standard explicitly on your own quote rather than leaving it to be inferred.

Reading a specification without getting caught out

1. "Class 2" alone is incomplete

Ask three follow-up questions: which standard, which edition, and — for US orders — which Type. A purchase order that says only "Class 2 safety vest" leaves the supplier guessing, and guessing is how shipments get rejected at inspection.

2. Garment construction limits the achievable class

Class is driven by visible material area, not by how reflective the tape is. A narrow-band vest with premium tape can still fall short of a higher class because there is not enough background and retroreflective area on the garment. If a buyer needs Class 3, the conversation has to start with garment design, not with material selection.

3. Retroreflective performance degrades with washing

All three standards require performance to survive a defined number of wash cycles, and the count differs between them. Industrial laundering is harsher than home washing, and a garment compliant for domestic laundering may not hold up under industrial conditions. If the end user washes industrially, say so at the quoting stage.

4. The certificate is not the garment

A test report covers the material or the garment type that was submitted. It does not certify every colourway, every size, or every subsequent production batch. When you receive a test report, check what it actually covers before repeating the claim in your own documentation.

What to request from a supplier

The test report — with the issuing laboratory named, the standard and edition cited, and the specific material or garment identified.
Which edition the report was issued against. A report to a superseded edition is a starting point for a conversation, not proof of current compliance.
Wash-cycle performance at the count your market requires, and whether it was domestic or industrial laundering.
Colour and colourfastness data, since fluorescent dyes are the component most likely to shift.
Declaration of conformity naming who actually holds the certification — which may be the mill, not the trading company you are buying from.

That last point matters more than it looks. In this industry, material is frequently supplied through intermediaries, and the entity named on the test report is not always the entity you are contracting with. Knowing who holds the certification tells you where the technical accountability actually sits.

How to verify a certificate yourself

Do not take a PDF at face value. Every credible laboratory operates a public verification service where you can check a report number directly:

If a supplier cannot give you a report number that verifies against the issuing laboratory's own system, treat the claim as unconfirmed.

Summary

If your buyer says…	You still need to confirm
"Class 2 hi-vis"	Which standard, which edition, and for the US — which Type
"EN ISO 20471 Class 3"	Garment design supports Class 3 (sleeves present); wash-cycle count required
"ANSI Class 2"	Type O, R or P — and the edition (2020 is current)
"GB 20653"	Class level, and whether the goods are for domestic sale or export

Need help specifying a material?

We manufacture retroreflective fabric, tape, film and heat transfer material at our own factory, supplying workwear, PPE and road safety programmes directly. If you are working out which material specification will meet a given standard and wash requirement, send us the end use and the target market and we will confirm feasibility, minimum quantity and unit pricing on quotation.

Because we produce in-house, we can tell you what a given construction will realistically achieve against a standard before you commit to an order — and where a certification is held by a partner mill rather than by us, we will say so and point you to the report holder.

Note on scope. This page summarises the structure of the three standards for sourcing purposes. It is not a substitute for the standards themselves, and it does not constitute certification advice. Requirements, test methods and edition dates are revised periodically — always work from the current edition of the standard and from a test report issued against it. Standard editions cited: EN ISO 20471:2013+A1:2016, ANSI/ISEA 107-2020, GB 20653-2020.