A friend of mine wants to know if a color blind person can get a driving job or any job for that matter at UPS? In the prehistoric days when I was hired they used different color crayons to sort packages. Missorts were traced by finding out who was using that color at the hub so you had to know colors or the wrong dude would get an -woopin. Traffic lights can be memorized by what light is on so that wouldn't be a problem. Is there anything nowdays that requires good color awareness? Inquiring minds want to know.