5.—(1) Except where the Tribunal has declined to entertain a reference under section 118 of the Act, or the Chairman in any other case otherwise directs, the Secretary shall give notice by advertisement in such manner as the Chairman may think fit of every reference or application under section 118, 119, 120, 121 or 122 of the Act.
(2) An advertisement shall state–
(a)the names and addresses of the applicant and any organisation or person on whom a copy of the notice of reference or application has been served in accordance with rule 3;
(b)the nature of the reference or application;
(c)the time, not being less than 21 days from the date of publication of the advertisement, within which–
(i)an objection to the applicant’s credentials may be made in accordance with rule 6, and
(ii)any other organisation or person may apply to the Tribunal to be made a party to the proceedings in accordance with rule 7.