For the purposes of the present Agreement:

• “Fixed Link” means the Channel Fixed Link as defined in Article 1 of the Treaty done at Canterbury on 12 February 1986, which entered into force on 29 July 1987.

• “the Quadripartite Agreement” means the Agreement between the Government of the French Republic, the Government of the Kingdom of Belgium, the Government of the Kingdom of the Netherlands and the Government of the United Kingdom of Great Britain and Northern Ireland amending and supplementing the Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland, the Government of the Kingdom of Belgium and the Government of the French Republic concerning Rail Traffic between Belgium and the United Kingdom using the Channel Fixed Link with Protocol, done at Brussels on 15 December 1993, done at Brussels on 7 July 2020.

• “the Special Arrangement” means the Special Arrangement between the Government of the French Republic, the Government of the Kingdom of Belgium, the Government of the Kingdom of the Netherlands and the Government of the United Kingdom of Great Britain and Northern Ireland concerning security matters relating to trains using the Channel Fixed Link, done at Brussels on 7 July 2020.

• “Host State” means the State in whose territory the border controls of the other Contracting Party are effected.

• “Destination State” means the Contracting Party to this Agreement which is not the Host State, in whose territory a train is intended to terminate.

• “Control Zone” means that part of the territory of the Host State and the trains, within which Officers of the other State are empowered to effect border controls, as delimited in accordance with arrangements made between the Contracting Parties pursuant to Article 4 of this Agreement.

• “Officers” means persons empowered or authorised to conduct border controls.

• “Competent authorities” means those organisations, government agencies or persons upon which statutory functions are conferred in order to perform a designated function in relation to the border controls referred to in this Agreement.

• “Border controls on persons” means controls carried out to ensure that persons may be authorised to enter or leave the territory of the United Kingdom or the Schengen Area in accordance with the national legislation of the relevant Contracting Party or the Schengen Borders Code, as applicable.

• “train” means an international train travelling between Dutch and British territory using the Fixed Link.

• “Operator” means a rail carrier providing a scheduled high-speed international railway service via the Fixed Link.

• “Individual Service” means a single train journey running in either direction between the United Kingdom and the Netherlands.