Additional Technical Contract Conditions for Civil Engineering Works

[Zusätzlichen Technischen Vertragsbedingungen für Ingenieurbauten — ZTV-ING]; Part 5: Tunnel construction, Section 1: Closed construction method

Regulations on the construction of new mechanically bored road tunnels and the maintenance of existing mechanically bored road tunnels (mining construction/shotcrete construction).

Mutual recognition is regulated for the entire ZTV-ING Part 1, Section 1, which can be found in the notification under number 2016/0670/D.