Final answer:
Retro-reflective trim is recommended on all high visibility clothing to enhance the wearer's visibility in low-light conditions and improve safety, particularly for workers in environments where being seen is crucial.
Step-by-step explanation:
Is retro-reflective trim recommended on all high visibility clothing? Yes, retro-reflective trim is highly recommended for high visibility clothing, especially for people who work in low-light conditions and places where visibility is a safety concern. This type of trim enhances visibility by reflecting light directly back to the source. For example, in occupations such as road construction or emergency services, workers often wear jackets and vests with retro-reflective trim to ensure they are seen by drivers, thereby reducing the risk of accidents. These trims are typically specified in safety regulations and standards like ANSI/ISEA 107 which set forth the requirements for the design and use of high-visibility clothing.