This document provides guidance on choosing high-visibility workwear to improve safety. It discusses the different classes of garments based on work environment factors like traffic speed and separation. Class 1 is for speeds under 25 mph with separation from traffic. Class 2 is for speeds of 25-50 mph or complex backgrounds. Class 3 is for speeds over 50 mph or roadwork with no barrier. The document explains vest, jacket, rain suit and trouser options and stresses the importance of employers providing appropriate class garments that are in good condition.