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A hatched boundary round a restricted volume.
Also known as: Danger area chart symbol, Prohibited area symbol
The aeronautical chart symbol bounding a prohibited, restricted or danger area.
Bounds a prohibited, restricted or danger area on an aeronautical chart.
Contexts: Maps
Covers three legally distinct categories with one drawing, the distinction being carried by a letter and number label rather than by the symbol.
Contexts: Maps
A boundary line carrying short hatching strokes on its inner side, the hatching marking the affected volume.