13.—(1) An EEA national is entitled to reside in the United Kingdom for a period not exceeding three months beginning on the date of admission to the United Kingdom provided the EEA national holds a valid national identity card or passport issued by an EEA State.
(2) A person who is not an EEA national but is a family member who has retained the right of residence or the family member of an EEA national residing in the United Kingdom under paragraph (1) is entitled to reside in the United Kingdom provided that person holds a valid passport.
(3) An EEA national or the family member of an EEA national who is an unreasonable burden on the social assistance system of the United Kingdom does not have a right to reside under this regulation.
(4) A person who otherwise satisfies the criteria in this regulation is not entitled to a right to reside under this regulation where the Secretary of State or an immigration officer has made a decision under regulation 23(6)(b) (decision to remove on grounds of public policy, public security or public health), 24(1) (refusal to issue residence documentation etc), 25(1) (cancellation of a right of residence), 26(3) (misuse of right to reside) or 31(1) (revocation of admission), unless that decision is set aside or otherwise no longer has effect.