Regulation 12 Right of admission to the United Kingdom
Subject to regulation 21(1), an EEA national must be admitted to the United Kingdom if he produces, on arrival, a valid national identity card or passport issued by an EEA State.
Subject to regulation 21(1) and (2), a family member of an EEA national who is not himself an EEA national must be admitted to the United Kingdom if he produces, on arrival—
a valid national identity card issued by an EEA State, or a valid passport; and
either—
where the family member is a visa national or a person who seeks to be admitted to instal himself with a qualified person, a valid EEA family permit or residence document; or
in all other cases (but only where required by an immigration officer) a document proving that he is a family member of a qualified person.