ANSI Safety Wear Summary

Class 1

For workers in occupations that permit full and undivided attention to approaching traffic:

When work backgrounds are not complex.
When pedestrian workers are separated from traffic.
(Parking lot attendants, shopping cart retrievers, warehouse workers, and delivery vehicle drivers.)

Class 2

For workers who requires greater visibility under inclement weather conditions.

When work backgrounds are complex.
When tasks divert attention from approaching vehicle traffic.
(Roadway construction workers, utility workers, survey crews, railroad workers, school crossing guards, airport baggage handlers, law enforcement personnel, accident site personnel, emergency response personnel, high volume parking and tollgate personnel.)

Class3

For workers and vehicle operators whose high task loads place them in danger.

When wearer must be conspicuous through the full range of body motions at minimum 1,280 feet.
When wearer must be identifiable as a person.
(Roadway construction workers, utility workers, survey crews, and emergency service personnel.)