20.—(1) Save as provided by paragraph 17(1) the tribunal shall not normally make an order awarding costs and expenses, but may, subject to sub- paragraph (2), make such an order against a person if it is of the opinion that that person has acted frivolously or vexatiously or that his or her conduct has been wholly unreasonable.
(2) No order shall be made under sub-paragraph (1) against a person without that person having been given an opportunity to make representations against the making of the order.
(3) An order under sub paragraph (1) may require the person against whom it is made to pay another person either a specified sum in respect of the costs and expenses incurred by that other person in connection with the adjudication or the whole or part of such costs as assessed (if not otherwise agreed).
(4) Any costs required by an order under this paragraph to be assessed shall be assessed in the county court on the standard basis.
(5) The specified or assessed amount of any costs and expenses awarded by a tribunal shall, unless set aside and subject to any variation on appeal or review, carry interest from the fourteenth day after the date of the award at the rate for the time being prescribed under section 69 of the County Courts Act 1984(1).
(6) The specified or assessed amount of any costs and expenses and any interest thereon shall be recoverable by execution issued from a county court.