4. — A person established in the State, shall not carry on business as a tour operator in the State or hold himself or herself out, by advertisement or otherwise, as carrying on such business unless he or she—

(a) is the holder of a licence granted under section 6 to carry on such business, or

F9[(b) is an organiser or a trader facilitating linked travel arrangements and has provided security in accordance with section 22 or 22A of the 1995 Act.]]