High-visibility (HV) clothing, a type of personal protective equipment (PPE), is any clothing worn that has highly reflective properties or a colour that is easily discernible from any background.Yellow waistcoats worn by emergency services are a common example.
Part of the surface of the garment may have retroreflective stripes. This way they become much more visible in the dark for observers near a light source, such as the driver of a car with its headlights on. The pattern of the retroreflecting parts also helps to distinguish between objects and people. Area reflective fabric has proven to be the most effective way of outlining the body, so that drivers can distinguish a human shape at night.
For greater visibility during the daytime, very bright colours are used for the main body of the garment by Means of fluorescentmaterial.
In general, people who wear high-visibility clothing are those who need to be seen during poor lighting or weather conditions, or when working in environments where there is a lot of moving machinery.
Examples include pedestrians, workers, cyclists, motorcyclists, hunters and hikers.
The attention-gaining nature of high-visibility clothing has also led to its occasional use as a fashion statement.
Federal law in the United States requires all personnel working on a federally funded highway to wear a high-visibility vest starting on November 25, 2008. Firefighters are only excluded from this requirement while actively engaged in firefighting activities or hazardous materials situations. At all other times, high visibility clothing must be worn. In addition, paramedics, police officers not engaged in law enforcement activities (i.e. traffic stops), tow truck operators, and road workers are required by law to wear high visibility clothing.
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