A hi-vis vest is one of the most commonly required items of PPE on South African worksites — and one of the most frequently worn incorrectly or inadequately. The Occupational Health and Safety Act (OHS Act) requires employers to assess the risk and provide the appropriate class of high-visibility garment. A fluorescent vest without retroreflective tape does not comply.
This guide covers where hi-vis vests are compulsory, what the visibility classes mean, and what South African standards require.
What Makes a Hi-Vis Vest Compliant?
South Africa does not have a domestic SANS standard exclusively for high-visibility clothing. South African employers and sites follow the international standard ISO 20471 (which replaced EN 471), which classifies hi-vis garments into three performance classes based on the area of visible and retroreflective material.
Class 1 — Minimum Visibility
- Minimum 0.14m² of fluorescent material
- Minimum 0.10m² of retroreflective material
- Suitable for low-risk environments where vehicle speeds are low and pedestrian-vehicle conflict is limited
Class 2 — Medium Visibility
- Minimum 0.50m² of fluorescent material
- Minimum 0.13m² of retroreflective material
- The standard requirement for most South African construction sites, warehouses, and industrial environments
Class 3 — Maximum Visibility
- Minimum 0.80m² of fluorescent material
- Minimum 0.20m² of retroreflective material
- Full-body garment — long-sleeved jacket or coverall
- Required for road workers on high-speed roads and national roads
Hi-Vis Vest Class Comparison
The table below summarises the three ISO 20471 classes applicable to South African worksites, including the minimum material requirements, typical use cases, and standard reference for each.
| Class | Minimum Reflective Material | Typical Use | SANS / ISO Requirement |
|---|---|---|---|
| Class 1 | 0.10m² retroreflective; 0.14m² fluorescent | Low-risk environments with limited pedestrian-vehicle conflict and low vehicle speeds | ISO 20471 Class 1 |
| Class 2 | 0.13m² retroreflective; 0.50m² fluorescent | Construction sites, warehouses with forklift operations, industrial environments — the standard requirement for most South African worksites | ISO 20471 Class 2 |
| Class 3 (road worker) | 0.20m² retroreflective; 0.80m² fluorescent — full-body garment required | Road workers on high-speed national roads, Stop/Go operators, utility workers on public roads after dark | ISO 20471 Class 3 |
Key rule: A basic fluorescent vest without retroreflective strips does not meet ISO 20471. At night, fluorescence alone does not reflect vehicle headlights — the retroreflective tape is what makes the worker visible to an approaching driver.
Where Are Hi-Vis Vests Compulsory?
Under OHS Act Regulation 2, employers must identify hazards and provide appropriate PPE. High-visibility vests are compulsory wherever a worker is at risk of being struck by a moving vehicle and visibility of the worker may be limited.
Road Construction and Maintenance
All workers on or adjacent to an active road must wear Class 2 hi-vis vests as a minimum. Workers on national roads or high-speed routes require Class 3 garments (full-body visibility).
Additional rule: Traffic controllers (Stop/Go board operators) must wear Class 2 or 3 hi-vis vests — they face traffic from two directions simultaneously.
Warehouses and Distribution Centres
Any worker in an area where forklifts or other vehicles operate requires a hi-vis vest. This includes:
- Order pickers walking in active forklift zones
- Receiving staff at loading bays
- Maintenance workers performing tasks in vehicle operating areas
The mandatory sign “Hi-visibility vest required” (blue circle, hi-vis figure) must be posted at the entry to any forklift zone.
Construction Sites
General construction sites require Class 2 vests for all workers in vehicle and plant operating areas. The Construction Regulations 2014 require visible identification of workers wherever plant and people operate together.
Utility and Municipal Works
Water, electricity, gas, and telecoms workers operating in road reserves require Class 2 vests as a minimum. When working on public roads after dark, Class 3 is required.
Colour Requirements
ISO 20471 specifies three acceptable fluorescent colours:
| Colour | Application |
|---|---|
| Fluorescent yellow/lime green | Most common — highest visibility in daylight |
| Fluorescent orange | Road construction — particularly visible against road-coloured backgrounds |
| Fluorescent red | Limited use — lower contrast against some environments |
South African road construction sites predominantly use fluorescent orange vests, aligned with SADC-RTSM Chapter 13 requirements for road works personnel. General construction and warehouse environments use fluorescent yellow/lime green.
Retroreflective Tape Placement
For a hi-vis garment to meet ISO 20471 Class 2, the retroreflective tape must form closed horizontal bands around the torso and over the shoulders. A vest with only vertical strips does not meet the Class 2 standard.
Standard Class 2 vest tape configuration:
- Two horizontal bands around the torso (front and back)
- Two diagonal bands over the shoulders, meeting the horizontal bands
Inspection and Replacement
Hi-vis vests degrade with use and washing. Inspect vests before each shift:
- Fluorescent material: Check for fading — a bleached vest loses its daytime visibility
- Retroreflective tape: Check for peeling, tearing, or missing sections
- Closures: Ensure zip, velcro, or button closures keep the vest securely in place
A hi-vis vest that has faded or has missing retroreflective tape does not provide the protection required by OHS Act Regulation 2. Employers must replace degraded vests.
Common Hi-Vis Compliance Failures
- No vest in a forklift operating area — the most common warehouse PPE non-compliance
- Open vest — worn open at the front, obscuring the retroreflective bands
- Class 1 vest on a road construction site — insufficient for a high-speed environment
- Faded fluorescence — vest washed and sun-bleached to the point where the fluorescent colour is no longer effective
- No mandatory sign at entry point — vest provided but no “hi-vis vest required” sign at the zone entrance
Frequently Asked Questions
Are hi-vis vests legally required on South African construction sites?▼
Yes. Under OHS Act Regulation 2, employers must assess all hazards and provide appropriate PPE — and hi-vis vests are compulsory wherever workers face a risk of being struck by a moving vehicle or plant. On construction sites, the Construction Regulations 2014 reinforce this by requiring visible identification of workers in any area where plant and people operate together. Class 2 hi-vis vests are the minimum requirement for most South African construction environments.
What SANS standard applies to hi-vis vests in South Africa?▼
South Africa does not have a dedicated domestic SANS standard for high-visibility clothing. South African worksites follow the international standard ISO 20471 (which superseded EN 471), which classifies hi-vis garments into three performance classes based on the minimum area of fluorescent and retroreflective material. Employers specifying or procuring hi-vis garments for South African sites should reference ISO 20471 and confirm the class rating with the supplier.
What is the difference between Class 1, Class 2, and Class 3 hi-vis vests?▼
The classes differ in the minimum area of fluorescent and retroreflective material required, and therefore in the level of visibility they provide. Class 1 (0.14m² fluorescent, 0.10m² retroreflective) is suitable for low-risk, low-speed environments only. Class 2 (0.50m² fluorescent, 0.13m² retroreflective) is the standard requirement for most South African construction sites, warehouses, and industrial environments. Class 3 (0.80m² fluorescent, 0.20m² retroreflective) requires a full-body garment and is mandatory for road workers on high-speed roads and national routes.
Do traffic controllers and Stop/Go board operators need a specific hi-vis class?▼
Yes. Traffic controllers and Stop/Go board operators must wear a minimum of Class 2 hi-vis vests, and Class 3 is required when working on high-speed or national roads. This is because Stop/Go operators face oncoming traffic from two directions simultaneously, making maximum visibility critical. The SADC Road Traffic Signs Manual (SADC-RTSM) Chapter 13 specifies fluorescent orange as the prescribed colour for road works personnel, including traffic controllers.
Can an employer be fined for not providing hi-vis vests?▼
Yes. Failure to provide appropriate PPE — including hi-vis vests where a vehicle strike risk exists — is a contravention of the OHS Act. An OHS Act inspector can issue a compliance notice, improvement notice, or prohibition notice, and employers can face fines or prosecution under Section 38 of the OHS Act. In the event of a worker injury, failure to provide compliant PPE significantly increases the employer’s liability exposure under both the OHS Act and civil law.
How often should hi-vis vests be replaced?▼
ISO 20471 does not specify a fixed replacement interval — replacement is determined by condition. Employers must inspect hi-vis vests before each shift and replace any vest that shows faded fluorescent material, peeling or missing retroreflective tape, or damaged closures. In practice, vests used daily on active outdoor sites typically degrade within 12 to 18 months through a combination of UV exposure, washing, and physical wear. A faded or damaged vest that no longer meets the ISO 20471 class requirements must be replaced immediately.
Where can I buy SANS-compliant hi-vis vests in Johannesburg?▼
Dimple Safety stocks ISO 20471 Class 2 and Class 3 hi-vis vests and jackets — in fluorescent yellow/lime and fluorescent orange — at our warehouse at 22 Fraser Street, Booysens, Johannesburg. Standard sizes are available for same-day collection. Bulk orders for site supply can be requested at dimplesafety.co.za or via WhatsApp at +27 61 582 8943.
Where to Buy Hi-Vis Vests in South Africa
Dimple Safety stocks Class 2 and Class 3 hi-vis vests and jackets at our Booysens, Johannesburg warehouse — fluorescent yellow/lime and fluorescent orange, in standard sizes. Same-day collection available.
📞 WhatsApp your request: wa.me/27615828943
🌐 dimplesafety.co.za | 📍 22 Fraser Street, Booysens, Johannesburg
Related: OHS Act Safety Requirements: Your Workplace Safety Obligations Explained
