Joints, according to ZTV A-StB 07 (Zusätzliche Technische Vertragsbedingungen und Richtlinien für Aufgrabungen in Verkehrsflächen - German Additional Technical Contractual Conditions and Directives for Excavations in Traffic Surfaces) and the M SNAR data sheet (Merkblatt für Schichtenverbund, Nähte, Anschlüsse und Randausbildung von Verkehrsflächen aus Asphalt" - data sheet for layer bond, seams, joints and edging of asphalt traffic surfaces), may only be formed if asphalt materials with different qualities are being connected and if asphalt is being connected to installations. For example, the installation of a new surface layer in a partially milled wearing course or of the wearing course to curbstones or gullies. Alongside "cutting and pouring," the use of bitumen joint tapes has proved to be of value in creating joint connections: