16.—(1) Any notice given under these rules shall be in writing, and all notices and documents required or authorised by these rules to be sent or given to any person hereinafter mentioned may be sent by post, by means of the recorded delivery service or delivered to or at—
(a)in the case of a notice of appeal, the Board’s address for service specified in the assessment notice;
(b)in the case of a notice or document directed to the Advocate General for Scotland pursuant to rule 11, the Office of the Solicitor to the Advocate General for Scotland, Victoria Quay, Edinburgh, EH6 6QQ;
(c)in the case of a notice or document directed to the Lord Advocate pursuant to rule 11, the Legal Secretariat to the Lord Advocate, 25 Chambers Street, Edinburgh, EH1 1LA;
(d)in the case of any other document directed to the Board, the Board’s address for service;
(e)in the case of a document (other than a notice of appeal) directed to the Secretary, the Office of the Tribunals or such other office as may be notified by the Secretary to the appellant and to the Board under rule 5(b) or paragraph (3);
(f)in the case of a document directed to the appellant, his address for service specified in a notice given under these rules or, failing such a notice or if a notice sent to such an address has been returned, his last known address or place of business in the United Kingdom, or if the appellant is a corporation, such address or place of business or its registered or principal office;
and if sent or given to the authorised representative of the appellant or the Board shall be deemed to have been sent or given to the appellant or the Board as the case may be.
(2) The appellant or the Board may at any time by notice to the Secretary and to the other party change his address for service under these rules.
(3) The Secretary shall give notice to the appellant and the Board of any change in an address of which notice has been given to the parties under rule 5(b).