1. During the transitional period until 1 January 2027, the ENTSO for Gas shall develop the 2026 Union-wide network development plan for hydrogen, with the full involvement of hydrogen transmission network operators and together with the ENNOH as soon as it is established. The 2026 Union-wide network development plan for hydrogen shall consist of two separate chapters, one for hydrogen and one for natural gas. The ENTSO for Gas shall without delay transfer to the ENNOH all the information, including data and analyses it collected during the preparation of the Union-wide network development plans for hydrogen by 1 January 2027.