High visibility clothing is required when the work involves a risk of not being seen by others, especially in environments with moving vehicles or machinery. The rules are driven by both legislation and practical safety needs to reduce accidents and improve visibility in the workplace.
Requirements for high-visibility clothing are mainly regulated by the Work Environment Act and the Swedish Work Environment Authority's regulations on personal protective equipment. The employer is responsible for ensuring that workers have the right protective equipment when there is a risk of accident.
The EN ISO 20471 standard specifies three safety classes based on the amount of fluorescent and reflective material.
| Class | Protection level | Example of use |
|---|---|---|
| 1 | Lowest | Warehouse work, internal traffic |
| 2 | Medium | Construction sites, industrial areas |
| 3 | Highest | Road works, emergency services, police |
For work near traffic or in the dark, class 3 is normally required. Warning clothing should also meet durability requirements and be cleaned according to the manufacturer's instructions to maintain visibility.
In work environments where vehicles, machinery or heavy transportation are present, the risk of accidents increases. Examples include road works, construction sites, airports and railway areas.
During roadworks, workers must be visible both day and night, as motorists need to spot workers in time. On construction sites, high-visibility clothing is used to prevent collisions with machinery and vehicles.
The Swedish Work Environment Authority recommends that risk assessments are carried out before work starts. If visibility is limited by weather, darkness or work equipment, a higher protection class should be chosen.
Temporary visitors to risk areas should also wear high visibility vests or jackets.
High visibility clothing is mandatory for several occupational groups where visibility is crucial for safety. Road workers, construction workers, emergency services, police, traffic wardens and airport workers are often subject to approved garment requirements.
Police officers often use high visibility vests when directing traffic or at accident scenes. Emergency services need to be visible in dark and smoke-filled environments.
Jobs in logistics and port operations also require high-visibility clothing due to heavy traffic and limited visibility. Employers should document the roles covered and ensure that the equipment meets the EN ISO 20471 standard.
High visibility clothing is governed by European standards that ensure the garments meet visibility, safety and quality requirements. These rules determine how much fluorescent and reflective material is required, as well as how to label and certify the clothing as personal protective equipment.
EN ISO 20471 is the core standard for high visibility clothing. It sets out the minimum requirements for the design of garments to be clearly visible in daylight, twilight and darkness.
The standard applies to occupational groups working near traffic, construction sites, airports and other hazardous environments.
Garments are divided into three classes (1-3) depending on the amount of fluorescent and reflective material:
| Class | Level of visibility | Typical uses |
|---|---|---|
| 1 | Lowest | Warehouse staff, visitors |
| 2 | Medium | Road workers, drivers |
| 3 | Highest | Traffic wardens, emergency services |
To meet the requirements, high-visibility clothing must be CE marked and tested according to the standard's specifications. The employer is responsible under the Work Environment Act for providing such personal protective equipment when the risk assessment shows a need.
In addition to EN ISO 20471, there are standards that apply to lower risk environments. EN 17353:2020 covers clothing and accessories that provide enhanced visibility but do not meet the requirements for high visibility garments.
It is used, for example, for cyclists, school children and visitors in industrial environments. Other standards, such as EN 1150, cover high-visibility clothing for private use where professional certification is not required.
These rules are important to avoid confusion between professional protective clothing and leisure products. In some industries, additional national rules and industry-specific guidelines may also apply.
Companies should therefore check both European and Swedish requirements before purchasing protective equipment.
Warning clothing must be CE marked in accordance with the EU Personal Protective Equipment Regulation (EU) 2016/425. The marking indicates that the garment meets the applicable safety requirements and has been tested by an independent certification body.
The label should include information on the standard (e.g. EN ISO 20471), protection class, manufacturer and washing instructions. If the clothing consists of several parts, such as a jacket and trousers, the combination should be tested together to ensure the correct classification.
Regular checks and proper care are essential for the certification to remain valid. Worn or faded garments may lose their protective effect and should be replaced according to the manufacturer's recommendations.
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Safety clothing is divided into three protection classes according to the EN ISO 20471 standard, which specifies visibility requirements in different working environments. The difference between the classes lies in the amount of fluorescent surface and reflective material, which directly affects how visible the wearer is in different light conditions.
Protection class 1 provides the lowest level of visibility and is used where the risk of collision or accident is limited. This class is suitable, for example, for work in private industrial areas or places with low traffic intensity.
The garments have a smaller proportion of fluorescent materials and reflective details compared to higher classes. A common combination is trousers with reflective tape or a vest worn with other clothing.
To meet the requirements, the garment must be CE marked and tested according to EN ISO 20471. It is important that the reflectors are not covered by tool belts or clothing layers, as this reduces visibility.
| Characteristic | Requirement level |
|---|---|
| Fluorescent surface | At least about 0.14 m² |
| Reflective surface | At least about 0,10 m² |
| Typical area of use | Low risk, limited traffic |
Protection class 2 is used where the traffic or working environment poses a moderate risk. It provides greater visibility in both daylight and darkness thanks to a greater amount of visible material.
Occupational groups such as road workers, construction workers and logistics workers often use this class. Garments can be jackets, vests or trousers with wider reflective bands and clearer color contrast.
Clothing in this class should be worn when the worker is near moving vehicles up to about 50 km/h. Combinations of Class 1 garments can sometimes achieve Class 2 if they cover sufficient area.
| Characteristic | Requirement level |
|---|---|
| Fluorescent surface | At least about 0,50 m² |
| Reflective surface | At least about 0,13 m² |
| Typical area of use | Road work, construction, terminal work |
Protection class 3 provides the highest visibility and is used where the risk of accidents is greatest. Typically, this involves high-speed roads or night work.
This class requires both large fluorescent surfaces and a lot of reflective material. Garments often cover most of the body, such as full-length jackets, overalls or combinations of tops and bottoms that together reach Class 3.
To qualify as class 3, the clothing must be clearly visible from all directions, even at a distance. They are often used by emergency services, highway workers and other professions with high safety requirements.
| Characteristic | Requirement level |
|---|---|
| Fluorescent surface | At least about 0.80 m² |
| Reflective surface | At least about 0,20 m² |
| Typical area of use | Motorway, night work, emergency services |
High visibility clothing is a mix of visibility, function and durability. They are made to protect workers where there is a high risk of not being seen - both in daylight and darkness.
Their effectiveness depends a lot on the quality of the fluorescent material, the reflectors and the comfort and durability of the clothing.
Fluorescent material makes the garment extra visible in daylight and at dusk. It converts UV light into visible light, making the garment appear brighter than its surroundings.
Common colors are yellow, orange and red, as they stand out against natural colors. The material is used on large parts of the garment, such as the front and back of the jacket and sleeves.
According to the EN ISO 20471 standard, the amount of fluorescent fabric determines the protection class.
| Protection class | Minimum fluorescent surface (m²) | Example of garments |
|---|---|---|
| Class 1 | 0,14 | Trousers with reflectors |
| Class 2 | 0,50 | Waistcoat |
| Class 3 | 0,80 | Jacket or overalls |
Fluorescent textiles are often made from polyester or blended fabrics that hold their color better. To maintain the effect, regular washing according to the manufacturer's instructions is required, as dirt and wear degrade the light reflection.
Reflective materials make high-visibility clothing visible in the dark when hit by light, such as car headlights. Reflectors are small microprisms or glass beads that reflect light back towards the source.
This makes the user visible from a distance. The reflectors should be placed around the torso, arms and legs, so that body movements are clearly visible.
The width and position of the reflective tape is governed by EN ISO 20471 to ensure uniform visibility from all directions. Reflective materials can be sewn-on tapes, heat-applied strips or integrated prints.
For best effect, reflectors should be clean and not covered by other garments or equipment. Damaged reflectors should be replaced - even small scratches reduce light reflection.
Emergency clothing needs to allow good freedom of movement and withstand heavy use, not just be seen. Materials such as polyester-cotton blend or softshell are often used to combine durability, ventilation and weather protection.
Higher protection class garments are often reinforced in exposed areas. Comfort is influenced by fit, breathability and how well the garment adapts to temperature.
Lightweight fabrics and ventilation panels reduce heat, while lined versions protect against the cold. To preserve durability, garments should be washed according to the label, avoid high heat drying and be stored in a dark place to protect the pigment.
Proper care will prolong both visibility and longevity.
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Warning clothing is needed to increase visibility where there is a risk of accidents due to vehicles, machinery or poor visibility. Requirements vary depending on the workplace and task.
Road works require high-visibility clothing with the highest visibility, as workers often work close to traffic. EN ISO 20471 class 3 is most common here.
This means large areas of fluorescent material and reflectors that are visible both day and night. Those working on or near roads, such as paving, signposting or railing work, must wear clothing that complies with CE marking and the correct protection class.
The employer is responsible for ensuring that the correct protective equipment is used. In traffic environments, it is important that clothing covers as much of the body as possible.
Jackets, trousers and vests can be combined to provide sufficient visibility from all directions. Reflective material should be positioned to be visible when moving and illuminated by vehicles.
On construction sites, high-visibility clothing is used to reduce the risk of accidents involving machinery, vehicles or poor visibility. Class 2 is often sufficient, but where there is heavy traffic or night work, class 3 may be needed.
Workers in construction and industry often combine high-visibility clothing with other personal protective equipment, such as helmets, safety shoes and gloves. It is important that the clothing does not restrict movement, but still provides sufficient coverage to ensure visibility.
Industrial environments may also require specific materials, such as flame retardants or anti-static properties. Warning clothing should always be CE marked and meet the standard corresponding to the risk level of the workplace.
Hazard warning clothing is not only used in construction and road works. They are also common in warehouse work, emergency services, ports, airports and agriculture.
The risks vary, but the aim is always to be more visible in environments with vehicles or machinery. In some cases, class 1 is sufficient, for example in fenced areas or where vehicles are moving slowly.
When working in the dark or outdoors with poor visibility, a higher class should be used. The employer should carry out a risk assessment and choose the right level of protection.
| Class | Typical use | Visibility |
|---|---|---|
| 1 | Low risk, fenced areas | Lowest |
| 2 | Moderate risk, construction sites | Medium |
| 3 | High risk, road works and traffic | Highest |
High visibility clothing only provides protection if it is properly cared for. Dirt, wear and improper washing affect both visibility and comfort.
Regular cleaning is essential for reflective and fluorescent surfaces to work. Dirt, oil and dust reduce visibility and can cause the garment to no longer meet requirements.
The manufacturer always indicates the washing temperature, drying method and maximum number of washes on the label. If these limits are exceeded, the fabric risks losing color and reflective tape loses its effect.
Use mild detergent without bleach or fabric softener - chemicals can damage the reflectors. Wash clothes separately from dark garments to avoid discoloration.
For best durability, high visibility clothing should be dried at room temperature and stored in a dry, ventilated place away from direct sunlight. This will help the material last longer.
High visibility clothing should be checked regularly to ensure that it is still sufficiently visible. Worn reflectors, faded colors and broken seams reduce protection.
A quick visual check before use is often enough to find problems. If the reflective tape does not reflect light clearly or if the surface is heavily soiled despite washing, it is time to replace the garment.
The manufacturer may specify a maximum number of washes - once this is reached, the garment should no longer be used as protective clothing. Employers should have inspection and documentation procedures in place, especially where clothing is heavily worn or exposed to chemicals.
This will both save money and increase safety.
The right choice of high-visibility clothing depends on the work environment, the level of risk and the required visibility class according to EN ISO 20471. The clothing should provide sufficient visibility without hindering freedom of movement or comfort during the working day.
The employer must carry out a risk assessment to determine the need for high-visibility clothing. The assessment takes into account things like lighting conditions, traffic intensity and proximity to vehicles or machinery.
High visibility clothing is divided into three classes:
| Class | Level of visibility | Typical working environments |
|---|---|---|
| 1 | Lowest | Isolated areas with low risk |
| 2 | Medium | Warehouses, construction sites with some traffic |
| 3 | Highest | Road work, emergency services, heavy industry |
When working near road traffic or in the dark, class 3 is often required. In low-risk indoor environments, class 1 may be sufficient.
Warning clothing should always be CE marked and meet the requirements for personal protective equipment. Dirt and wear degrade the reflectivity of the garment.
Regular inspection and washing according to the manufacturer's instructions is important for safety.
Warning clothing should be comfortable and not restrict movement. Garments that are too loose or tight can actually reduce both visibility and safety.
A good fit allows reflective and fluorescent materials to be seen from all directions.
Common garment types include high visibility jackets, vests, trousers and overalls. Different garments can be combined to achieve the right classification - for example, a Class 2 jacket and trousers together make a Class 3 garment.
Material matters for both comfort and durability. Lightweight fabrics work best indoors or when it's warm, while heavier materials are needed outside in cold or harsher environments.
Garments should also work well with other workwear and protective clothing to ensure a proper fit and protection.
Warning clothing is needed when there is a risk of not being properly visible, especially where vehicles or machinery are involved. The requirements are governed by EN ISO 20471 which determines how the clothing should be classified and used depending on the level of risk and the working environment.
The rules are based on the Swedish Work Environment Authority's regulations and the EN ISO 20471 standard. Employers are responsible for ensuring that those working in hazardous areas have approved, certified garments with the right visibility.
In the construction industry, high-visibility clothing is a must when working near vehicles, machinery or other moving objects. This is especially true on construction sites, during road works and where there is traffic.
A work environment is considered a hazardous environment if there is vehicle traffic, heavy machinery or poor visibility. This can include roads, airports, ports, railways and construction sites. High visibility clothing is needed when visibility is crucial for safety.
High visibility clothing is divided into three classes according to EN ISO 20471. The classification depends on how much fluorescent material and reflectors the garment has.
Class 1 is for low risk, such as visitors or places with little traffic.
Class 2 is for medium risk, such as construction and road works.
Class 3 is the highest level of protection and is used where you need to be seen from a distance, even when it is dark or visibility is poor.
Garments should bear the EN ISO 20471 symbol and information on the protection class. In fact, it is a must.
Before being approved, certified high-visibility clothing is tested by independent testing institutes. The label also usually indicates how many washes the garment can withstand without losing its protective properties - which is pretty good to know, right?
The information on this page is intended as general guidance only and does not replace manufacturer instructions or applicable regulations. Workwise does not guarantee that the content is accurate, complete, or current and is not liable for decisions or actions taken based on this information. Always follow current standards and manufacturer instructions.