(b)they are in possession of a valid visa, if required pursuant to Council Regulation (EC) No 539/2001 of 15 March 2001 listing the third countries whose nationals must be in possession of visas when crossing the external borders and those whose nationals are exempt from that requirementnote, except where they hold a valid residence permit or a valid long-stay visa.
(2)paragraph 4(a) is replaced by the following:
(a)third-country nationals who do not fulfil all the conditions laid down in paragraph 1 but who hold a residence permit, a long-stay visa or a re-entry visa issued by one of the Member States or, where required, a residence permit or a long-stay visa and a re-entry visa, shall be authorised to enter the territories of the other Member States for transit purposes so that they may reach the territory of the Member State which issued the residence permit, long-stay visa or re-entry visa, unless their names are on the national list of alerts of the Member State whose external borders they are seeking to cross and the alert is accompanied by instructions to refuse entry or transit;’.