This guide is the update of previous document, dating from 2011.
This guide is intended to services of the French civil aviation and of the ministry of Armed Forces concerned by the legal constraints enforcing obstacle limitation surfaces (aeronautical servitudes). It provides a practical interpretation of the regulation and a common methodology for the elaboration of the graphic documents representing such legal constraints, in order to standardize work habits on these topics. All the data necessary for the elaboration of a legal servitude form is described: data relative to the runways and to the infrastructures used by helicopters, navigation equipment, obstacles. Besides the description of the various basic surfaces used for obstacle limitation, this guide brings some answers to the problem of the adaptations of surfaces in the presence of obstacles.