When do you need to wear high visibility apparel?

High visibility apparel, also known as hi-vis or reflective clothing, should be worn when working in low light or poor visibility conditions, such as in construction, road work, or other outdoor activities. It is also required by law in many countries for workers who are exposed to vehicular traffic or heavy machinery.

The purpose of high visibility clothing is to make the wearer visible from a distance, especially to drivers and equipment operators, to help prevent accidents and improve safety. Hi-vis apparel typically has bright fluorescent colors, such as orange or green, and retroreflective materials that reflect light back to its source, making it easier for drivers to see the wearer.