This Published Document gives guidance and background information to specifiers and manufacturers of lighting columns on the use of BS EN 40‑3‑1 and BS EN 40‑3‑3, which specify the design of lighting columns. In particular, it gives guidance on the information which the specifier is required to give to the manufacturer to allow a suitable lighting column to be designed, such as the topography factor, site wind speed, site altitude and terrain category, which are used to determine the design wind pressure.