Five European transmission system operators (TSOs) have commenced the H2med project by launching a non-binding Call for Interest to gauge the future infrastructure needs along the hydrogen corridor. The initiative kicked off in Madrid, with Enagás, GRTgaz, OGE, REN, and Teréga as the key project collaborators. The call, open from November 7 to December 18, 2024, will evaluate the requirements within the H2med corridor, focusing on establishing national hydrogen backbones by 2030 in several European countries. By revisiting previous consultations at both national and local levels, the TSOs aim to update their insights on the market's demands until 2050. This project signifies a significant step towards enhancing the infrastructure for hydrogen across Europe, highlighting the commitment of the involved TSOs towards the energy transition.