High-visibility clothing ANSI Standards were adopted as an Occupational Safety and Health Act (United States) requirement in 2008.

[10][full citation needed] The 1960 Universal film Chartroose Caboose featured a "bright green"-colored train car.

[11] Since about 1973, a sort of fluorescent chartreuse green has been adopted as the color of fire engines in parts of the United States and elsewhere.

The use of chartreuse fire engines began when New York ophthalmologist Stephen Solomon produced research claiming that sparkling bright lime-green paint would boost the night-time visibility of emergency vehicles compared to those painted the traditional fire engine red.

[12][13] The reason for this is the Purkinje effect, i.e., the cones do not function as efficiently in dim light, so red objects appear to be black.