18. The information mentioned in regulation 16 as respects the requirements under these Regulations to notify the Secretary of State of a usual address or UK contact address (or both) as a result of a change of address is—
(a)the fact that a party is required under regulation 8 to give notice to the Secretary of State of—
(i)in a case where the party’s notified usual address changes, his or her usual address, as well as a UK contact address if the party’s usual address is no longer in the UK, or
(ii)in a case where the party’s notified UK contact address changes, his or her UK contact address.
(b)the period within which a party must give notice to the Secretary of State of his or her usual address or UK contact address,
(c)the manner in which a party may or (as the case may be) must give notice of his or her usual address or UK contact address, including the details of relevant numbers or addresses to which notice may (or must) be given,
(d)the fact that a party may give notice of a usual address or UK contact address on behalf of both parties where they share that address,
(e)the requirement under regulation 9 to provide evidence of a usual address and when that must be done,
(f)the kinds of evidence which may be provided under regulation 9.
(2) In this regulation “relevant numbers and addresses” means the numbers and addresses notified to the superintendent registrar or (as the case may be) the registration authority by the Secretary of State for the purposes of a party giving notice under regulation 8.