ISO 20471/BIS approved IS 15809:2017 Indian standards for hi-visibility reflective clothing and work wear user guidelines of hi-visible jackets as per Indian & international standards There are 3 discrete levels of risks areas as per ISO 20471 standards for high visibility warning clothing. In accordance, there are 3 different types of high visibility warning clothing that can be used.
Features of Class 1
  • Permits full and undivided attention to approaching traffic
  • Provides ample separation to the worker from conflicting vehicle traffic
  • Permits optimum conspicuity in backgrounds that are not complex
  • Involves vehicle and moving equipment speed not exceeding 40 KM/H
Example of workers in class 1
  • Workers directing vehicle operators to parking / service area
  • Workers retrieving shopping carts from parking area
  • Workers exposed to hazards of warehouse equipment traffic
  • Roadside maintenance work
  • Delivery vehicle drivers
Conspicuity level for use in activities where risk levels exceed those in class I such as:
  • Greater visibility during inclement weather conditions
  • Better visibility in case of complex background
  • Workers are performing tasks which divert attention from approaching vehicle traffic
  • Work activities take place in or in proximity to vehicle traffic
Example of workers in class 2
  • Roadway construction workers
  • Utility workers
  • Survey crews, Railway workers
  • School crossing guards
  • High volume parking personnel
  • Toll gate personnel, airport baggage handlers and ground crew
  • Emergency response personnel, Law enforcement personnel
  • Accident site investigators
Conspicuity level for use in occupational activities where risk level exceeds those in class 2, such as where
  • Workers exposed to traffic speeds exceeding 80 km/h
  • Pedestrian workers and vehicle operators have high risk loads placing the Pedestrian worker in danger
  • The worker must be conspicuous through the full range of body motions at a minimum of 390m (1280 feet), and must be identifiable as a person
Example of workers in class 3
  • Roadway construction workers
  • Utility workers
  • Survey crews
  • Emergency response personnel
  • Railway workers at high risk area (working on tracks such as gangman, track machine staff, night patrol man, gate keeper etc.)