April 18th 2017 was the bid presentation deadline for the largest construction lot for the Brenner Base Tunnel, Pfons–Brenner. The construction lot includes the excavation of the main tunnels between Pfons and Brenner, about 9 km of exploratory tunnel and the emergency stop and the cross-over at St. Jodok. In total, about 50 km of tunnel will be driven. This lot was tendered at a European level according to the MEAT principle and on the basis of Austrian tender law (BVergG 2006, as amended in 2016). Five bids were tendered.