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A Notice of Proposed Rulemaking (NPRM) originally issued in 1983 proposed performance standards for floor proximity emergency escape path markings for transport category aeroplanes. It was stated that there may be a number of ways of acceptable combinations of various types of lighting that could meet the objectives of this proposal which followed on the findings of a special committee dealing with the problems of fuel spill and cabin fire protection. Related aspects of post‐crash survival were looked at, including lighting for emergency evacuation and it was recommended that additional sources of lighting be placed at a lower level in the cabin in the relatively clear air near the floor.