Without prejudice to Article 21(16) of Directive (EU) 2016/797, Regulation (EU) No 321/2013 (‘WAG TSI’) shall include the vehicles to be authorised and operated on rail networks within the Union with a track gauge of 1 520 mm.

The provisions of the WAG TSI on automatic variable gauge systems, including in terms of technical specifications and conformity assessment procedures, shall be reviewed.

The WAG TSI shall include provisions to increase flexibility and efficiency in train composition and the development of intermodal transport. Provisions on automatic coupling shall be included where appropriate.

The WAG TSI shall ensure consistency and avoid any overlap with the Regulations concerning the International Carriage of Dangerous Goods by Rail (‘RID’) as regards technical requirements applicable to vehicles. The inclusion of the derailment detection function shall be considered in terms of technical requirements, operational aspects and conformity assessment procedures.

The WAG TSI shall include requirements improving the identification of freight wagons. The use of contactless technologies and related standards shall be included where appropriate.

The WAG TSI shall take into account changes in the procedure for placing mobile subsystems on the market, as provided for in Articles 20 to 26 of Directive (EU) 2016/797, including the checks before the first use of authorised vehicles mentioned in Articles 4(3)(i) and 23 of that Directive.