54.—(1) Within two months from the date of any advertisement in the Gazette of an application for the registration of a certification trade mark, any person may give notice to the Registrar on Form T.M. 11 of opposition under section 68(11) of the Act, and rules 41 to 53 shall apply to the proceedings thereon.
(2) Any person may give notice to the Registrar on Form T.M. 14 of opposition under section 68(12) of the Act, and rules 41 to 53 shall apply with such modifications as may be required to suit the circumstances.
(3) For the purposes of this rule, Form T.M. 12 shall be substituted with Form T.M. 15 and Form T.M. 13 shall be substituted with Form T.M. 16.
(4) In case of doubt, any party may apply to the Registrar for directions.