“ Issue of a document certifying permanent right of residence and a permanent residence card 18. – (1) The Secretary of State must issue an EEA national with a permanent right of residence under regulation 15 with a document certifying permanent residence as soon as possible after an application for such a document and proof that the EEA national has such a right is submitted to the Secretary of State. (2) The Secretary of State must issue a person who is not an EEA national who has a permanent right of residence under regulation 15 with a permanent residence card no later than six months after the date on which an application for a permanent residence card and proof that the person has such a right is submitted to the Secretary of State.” 22. Regulation 18 is, accordingly, the provision which deals with the documentation of the permanent right of residence under regulation 15. As can be seen, regulation 18 contains no reference to any requirement to produce “a valid passport” or “a valid national identity card”; nor does anything in Chapter IV of the Citizens Directive, which makes provision for the right of permanent residence. 23. In the case of the respondents, it is clear from the reasons for refusal letter and the respondents’ bundle that they made application under form EEA 4 for “Permanent Residence”