Additional Technical Contract Conditions for Civil Engineering Works

[Zusätzlichen Technischen Vertragsbedingungen für Ingenieurbauten — ZTV-ING]; Part 5: Tunnel construction, Section 2: Open construction method

Regulations on the construction of new cut-and-cover road tunnels and maintenance of existing ones.

Mutual recognition is regulated for the entire ZTV-ING in Part 1, Section 1, which was notified under number 2016/0670/D.