This VDE application guide for the first time summarizes the formal, personal and technical minimum requirements and optional criteria for cable laying companies in the fields of power and telecommunication. The relevant technical rules and legal provisions continue to apply in full for the construction of cables and relevant aspects (especially with respect to sector- and construction-specific cables/conduits/sheathing materials, joints, depths of cover, distances, bedding requirements and associated installation/mounting technologies, risk prevention measures and qualification requirements)