Table 1

 Occupations with colour vision standards

Main reason for requirements
SafetyQuality of product
Armed ForcesColour matching, e.g. in textiles, paper, painting, and dyeing
RailwaysCarpet warpers, weavers, and inspectors
Merchant shippingHorticulture
NavigationChemical analysis using colour
Civil aviationColour television and testing/maintenance
Police and fire serviceFine art and colour photography
Electrical contracting
Some other types of electrical engineering
Hospital technicians and pharmacists